Step-by-step explanation:
The sum of the interior angles of a n-gon is equal to ( n-2)(180) degrees
for this 6-gon the sum is (6-2) * 180 = 720 degrees
(145 + 165 + 58 + 130 + 125 + x ) degrees = 720 degrees
x = 97 degrees
janice wants to book a holiday
the holiday will cost £ 1754
janice will pay a deposit of £350
she will then pay the rest od the cost in 6 equal monthly payments
how much is each monthy paymwnt
Answer: £234
Step-by-step explanation:
First, we need to subtract the deposit (£350) from the total cost of the trip (£1754):
£1754 - £350 = £1404
Then we need to divide the remaining amount of money (£1404) by the number of months Janice will be on holiday (6 months):
£1404 ÷ 6 months = £234 each month
Hope this helps!
Helppp please
Thorium 234 is a radioactive isotope that decays according to the eqaution At=A0e^-10.498t, where A0 is the initial amount present and At is the amount present after t years. is the amount present after t years. If you begin with 1000 grams of strontium 90,
(a) How much thorium 234 will be left after 0.5 years? Round your answer to the nearest tenth of a gram.
------------------- grams
(b) When will 115 grams of thorium 234 be left? Round your answer to the nearest tenth of a year.
-------------------- years
if you need to see the picture here is too. Thank u.
a) Approximately 778.7 grams of thorium 234 will be left after 0.5 years.
b) Approximately 2.1 years will have passed when 115 grams of thorium 234 are left.
(a) To find the amount of thorium 234 left after 0.5 years, we can use the equation:
[tex]A_t = A_0 e^{(-10.498t)}[/tex]
where A₀ is the initial amount, which is 1000 grams, t is the time in years, and At is the amount after t years.
Substituting t = 0.5, we get:
[tex]At = 1000 e^{(-10.498\times0.5)} = 778.7 \ grams[/tex]
Therefore, approximately 778.7 grams of thorium 234 will be left after 0.5 years.
(b) To find the time at which 115 grams of thorium 234 will be left, we can use the same equation and solve for t:
[tex]A_t = A_0 e^{(-10.498t)[/tex]
Dividing both sides by A₀ and taking the natural logarithm of both sides, we get:
ln(At/A₀) = -10.498t
Substituting At = 115 grams and A₀ = 1000 grams, we get:
ln(115/1000) = -10.498t
Solving for t, we get:
t = (ln(115/1000)) / (-10.498) ≈ 2.1 years
Therefore, approximately 2.1 years will have passed when 115 grams of thorium 234 are left.
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help please is just one problem
The value of inverse of function is,
⇒ f ⁻¹ (x) = x² / 36
We have to given that;
Function is,
⇒ f (x) = 6√x
Now, We can find the inverse of the function is,
⇒ f (x) = 6√x
⇒ y = 6√x
Solve for x;
⇒ y/6 = √x
⇒ (y/6)² = x
⇒ x = y² / 36
⇒ f ⁻¹ (x) = x² / 36
Thus, The value of inverse of function is,
⇒ f ⁻¹ (x) = x² / 36
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The table of values for quadratic function f(x) is shown.
0|-58
1|-23
2|-2
3|5
4|-2
5|-23
6|-58
What is the end behavior of f(x)?
The end behavior of the quadratic function is f(x) = (x + 5)² - 2
We have the table of values which represents a quadratic function f(x).
A quadratic equation is represented as;
f(x) = a(x - h)² + k
Where, Vertex = (h, k)
If we plot the graph according to the given table, the vertex will be,
(h, k) = (-5, -2)
Substitute, (h, k) = (-5, -2) in f(x) = a(x - h)² + k
we have, f(x) = a(x + 5)² - 2
Also, the graph, we have the point (0, 23)
This means that
a(0 + 5)² - 2 = 23
25a = 25
a = 1
Substitute a = 1 in f(x) = a(x + 5)² - 2
f(x) = (x + 5)² - 2
Hence, the equation is polynomial f(x) = (x + 5)² - 2
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Redondea 398.223 a la decena más cercana
398.223 redondeado a la decena más cercana es 400.
Redondear un númeroRedondear un número a la decena más cercana implica determinar a qué decena se acerca más. En este caso, estamos redondeando el número 398.223.
Para hacer esto, observamos el dígito en la posición de las decenas, que es el 9 en 398.223. El dígito a la derecha de la posición de las decenas es el lugar de las centésimas, que en este caso es 8.
Para redondear a la decena más cercana, seguimos la regla general de redondeo: si el dígito en el siguiente lugar de valor más bajo (en este caso, el lugar de las centésimas) es 5 o mayor, redondeamos hacia arriba el dígito en el lugar de valor objetivo (en este caso, las decenas). Si el dígito es menor que 5, redondeamos hacia abajo.
En nuestro caso, el dígito en el lugar de las centésimas (8) es mayor que 5, por lo que redondeamos hacia arriba el dígito en el lugar de las decenas (9) al número siguiente más alto. Por lo tanto, 398.223 redondeado a la decena más cercana se convierte en 400.
En resumen, redondear 398.223 a la decena más cercana nos da 400 porque el dígito en el siguiente lugar de valor más bajo (8) es mayor que 5.
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In ΔUVW, u = 5.5 inches, v = 4.4 inches and w=9.6 inches. Find the area of ΔUVW to the nearest square inch.
The area of triangle UVW to the nearest square inch is approximately 2 square inches.
The area of triangle UVW can use the Heron's formula:
Area = √(s(s-a)(s-b)(s-c))
s is the semiperimeter of the triangle and a, b and c are the lengths of its sides.
First, we can calculate the semiperimeter s:
s = (u + v + w)/2
s = (5.5 + 4.4 + 9.6)/2
s = 9.75
The length of each of the three sides of the triangle:
a = v = 4.4 inches
b = u = 5.5 inches
c = w = 9.6 inches
Then, we can plug these values into the Heron's formula and simplify:
Area = √(s(s-a)(s-b)(s-c))
Area = √(9.75(9.75-4.4)(9.75-5.5)(9.75-9.6))
Area = √(9.75(5.35)(4.25)(0.15))
Area ≈ √(3.296)
Area ≈ 1.81
Rounding this to the nearest square inch, we get:
Area ≈ 2 square inches
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simplify the following expression (x/4)+(1/8)/(x^2/4)
After simplification,
(2x + 1)/2(x^2)
Given,
(x/4)+(1/8)/(x^2/4)
Simplifying,
Firstly take LCM of 4 and 8,
LCM of 4 and 8 will be 8.
Then,
(2x +1) /(8) / x^2 /4
Further,
Take reciprocal of the denominator,
(2x +1) /(8) (4/x^2)
(2x + 1)/2(x^2)
Hence after simplification the expression becomes (2x + 1)/2(x^2).
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what is 1975f= t 1758+Q2
To solve for f, we can rearrange the equation:
1975f = t1758 + Q2
First, we can isolate f by dividing both sides of the equation by 1975:
f = (t1758 + Q2) / 1975
So the final answer is:
f = (t1758 + Q2) / 1975
Huseyn was able to map quadrilateral efgh and Ejgk using a vertical stretch
what error did he make
Hüseyin concluded: "I was able to map quadrilateral EFGH onto quadrilateral EJGK using a sequence of rigid transformations and dilations, so the figures are similar." The error that he make is option A: Huseyn used a vertical stretch, so the quadrilaterals aren't similar.
What is the error?Hüseyin's transformations is one that keeps the EFGH's shape and proportions, so EJGK is similar to EFGH. Similar figures have congruent angles and proportional sides.
The error is seen when he uses vertical stretch, that is violating similarity condition of quadrilaterals EFGH and EJGK. A vertical stretch would alter the proportions of the sides and angles in quadrilateral EFGH, making it non-similar to that of EJGK.
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Solve part A and B on the picture (statistics)
The distribution of the weight of one dozen eggs is approximately normally distributed with a mean of 68 grams and a standard deviation of 4.2 grams.
How to calculate the valueThe distribution of the weight of one dozen eggs is also approximately Normally distributed. The mean of the distribution is the same as the mean of the individual eggs, which is 68 grams.
The standard deviation of the distribution is the square root of the sum of the variances of the individual eggs and the sample size, which is:
= 2.2 * ✓12
= 4.2 grams.
Therefore, the distribution of the weight of one dozen eggs is approximately normally distributed with a mean of 68 grams and a standard deviation of 4.2 grams.
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30 POINTS!! HELP PLEASE.....
Match the given situation to analyze whether they are a part of internal control accounting.
company policies help employees
to carry out their daily operations
verbal job descriptions are enough
to state an employee’s accountability
bank reconciliation needs to be
prepared for verification
transactions need not be authorized
by the management in advance
organization’s financial data in the
computer should be in password
protected files
Answer:
Company policies help employees to carry out their daily operations. - Yes, part of internal control accounting.
Bank reconciliation needs to be prepared for verification. - Yes, part of internal control accounting.
The organization's financial data in the computer should be in password-protected files. - Yes, part of internal control accounting.
Step-by-step explanation:
Jodi is making cookies. The recipe calls for 2½ cups of flour and flour and 1¼ cups of sugar She wants to double the reape, but she only has a ½-cup measuring cup. How many ½ cups of flour will she need to make 2 batches of cookies?
Jodi will need 10 half-cup measurements of flour to make 2 batches of cookies.
To double the recipe, Jodi needs to multiply the amounts of each ingredient by 2.
The original recipe calls for 2½ cups of flour. Doubling this amount gives:
2½ cups * 2 = 5 cups of flour
We may divide the total amount of flour required (5 cups) by the quantity in each 12-cup measurement to get the number of 1-1/2 cups Jodi needs.
5 cups / ½ cup = 10
Therefore, Jodi will need 10 half-cup measurements of flour to make 2 batches of cookies.
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Which expression can be used to find the volume of the figure below?
Choose 1 answer:
O Option A above
O Option B above
O Option C above
To find the volume of the figure, we use the formula: (2cm x 8cm x 7cm) + (1cm x 6cm x 8cm). The correct answer is (B)
How to find volume of joined shapeTo find the volume of a joined shape, you have to solve for the volume of each component of the shape and sum them together.
In this case, we have 2 shapes joined and both are cuboids.
Volume of a cuboid = length x breath x height
Volume₁ = 8 x 7 x 2 = 2 x 8 x 7
Volume₂ = 8 x 1 x 6 = 1 x 6 x 8
Total volume = (2cm x 8cm x 7cm) + (1cm x 6cm x 8cm)
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please if you know this help me i would appreciate it.
The reduced row echelon form of the matrix is:
[tex]\left[\begin{array}{ccc}-1144/259&\\-321/259\\25/74\end{array}\right][/tex]
Solving Echelon MatrixGiven the matrix below
[tex]\left[\begin{array}{ccc}7&-1&-3 |-63\\0&-6&-2 |-20\\0&1&1 | 6\end{array}\right][/tex]
Divide the first row by 7:
[tex]\left[\begin{array}{ccc}1&-1/7&-3/7 |-9\\0&-6&-2 |-20\\0&1&1 | 6\end{array}\right][/tex]
Add 1/7 times the first row to the second row:
[tex]\left[\begin{array}{ccc}1&-1/7&-3/7 |-9\\0&-37/7&-17/7 |-107/7\\0&1&1 | 6\end{array}\right][/tex]
Add 3/7 times the second row to the first row:
[tex]\left[\begin{array}{ccc}1&0&-16/37 |-296/37\\0&-37/7&-17/7 |-107/7\\0&1&1 | 6\end{array}\right][/tex]
Add 17/37 times the second row to the third row:
[tex]\left[\begin{array}{ccc}1&0&-16/37 |-296/37\\0&-37/7&-17/7 |-107/7\\0&0&20/37 | 25/37\end{array}\right][/tex]
Multiply the third row by 37/20:
[tex]\left[\begin{array}{ccc}1&0&-16/37 |-296/37\\0&-37/7&-17/7 |-107/7\\0&0&1 | 25/74\end{array}\right][/tex]
Add 3/7 times the third row to the second row:
[tex]\left[\begin{array}{ccc}1&0&-16/37 |-296/37\\0&-37/7&0 |-321/259\\0&0&1 | 25/74\end{array}\right][/tex]
Add 16/37 times the third row to the first row:
[tex]\left[\begin{array}{ccc}1&0&0 |-1144/259\\0&-37/7&0 |-321/259\\0&0&1 | 25/74\end{array}\right][/tex]
Multiply the second row by -7/37:
[tex]\left[\begin{array}{ccc}1&0&0 |-1144/259\\0&1&0 |321/259\\0&0&1 | 25/74\end{array}\right][/tex]
This is the reduced row echelon form of the given matrix.
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What’s 6-x=3 in pre algebra
Answer:3
Step-by-step explanation:
subtract 3 from 3 and repeat on the other side of the equal sign. So 6 minus 3 equals 3.
A right rectangular prism measures 8 inches long, 12 inches high, and 6 inches deep. A half-sphere with a diameter of 2 inches is carved out of the prism. What is the approximate volume of the resulting composite figure?
Answer:
[tex]573.9 \text{ in}^3[/tex]
Step-by-step explanation:
First, we can find the volume of the rectangular prism using the formula:
[tex]V_\square = l \cdot w \cdot d[/tex]
where [tex]l[/tex] is the prism's length, [tex]w[/tex] is its width, and [tex]d[/tex] is its depth.
Plugging the given dimensions into the formula:
[tex]V_\square = 8 \cdot 12 \cdot 6[/tex]
[tex]V _\square= 96 \cdot 6[/tex]
[tex]\boxed{V_\square = 576 \text{ in}^3}[/tex]
Next, we can find the volume of the half-sphere using the formula:
[tex]V_\circ = \dfrac{2}{3} \pi r^3[/tex]
where [tex]r[/tex] (or [tex]d/2[/tex]) is the half-sphere's radius.
Plugging the given diameter value into the formula:
[tex]V_\circ = \dfrac{2}{3} \pi (2/2)^3[/tex]
[tex]V_\circ = \dfrac{2}{3} \pi (1)^3[/tex]
[tex]\boxed{V_\circ=\dfrac{2}{3}\pi \text{ in}^3}[/tex]
Finally, we can find the volume of the composite figure by subtracting the volume of the half-sphere from the volume of the rectangular prism.
[tex]V = V_\square - V_\circ[/tex]
[tex]V = 576 \text{ in}^3 - \dfrac{2}{3}\pi \text{ in}^3[/tex]
We can evaluate this using a calculator.
[tex]\boxed{V\approx 573.9 \text{ in}^3}[/tex]
$11,335
is invested, part at 9%
and the rest at 6%
. If the interest earned from the amount invested at 9%
exceeds the interest earned from the amount invested at 6%
by $865.35
, how much is invested at each rate? (Round to two decimal places if necessary.)
Answer:
Let x be the amount invested at 9% and y be the amount invested at 6%
.According to the problem:
x + y = 11,335 ----(1) (the total amount invested is $11,335)0.09x - 0.06y = 865.35 ----(2) (the interest earned from the amount invested at 9% exceeds the interest earned from the amount invested at 6% by $865.35)
We can use these two equations to solve for x and y.
Multiplying equation (1) by 0.06, we get
:0.06x + 0.06y = 680.10 ----(3)
Subtracting equation (3) from equation (2), we get:
0.03x = 185.25
x = 6,175
Substituting x = 6,175 into equation (1), we get:
y = 5,160
Therefore, $6,175 is invested at 9% and $5,160 is invested at 6%.
Step-by-step explanation:
12. Stretch Your Thinking Write and solve a story problem about gathering three kinds of vegetables. Use 10-partners.
Cameron and Rebecca are organizing a lunch for their friends. Within the dishes to be served, they will prepare a tomato, carrot and broccoli salad. The number of tomatoes and carrots are 10-partners and the total amount of vegetables is 12. If we increase the number of broccoli by three and decrease the number of tomatoes by two, the amount of tomatoes and broccoli will also be 10-partners. What is the number of tomatoes, carrots and broccoli bought by Cameron and Rebecca?
Cameron and Rebecca purchased 7 tomatoes, 3 carrots and 2 broccoli.
Number of tomatoes = x
Number of carrots = 10 - x
Number of broccoli = y
System of Equations:
x + 10 - x + y = 12
y = 12 - 10
y = 2
x - 2 + y + 3 = 10 (If we increase the number of broccoli by three and decrease the number of tomatoes by two, the amount of tomatoes and broccoli will also be 10-partners)
x + 1 + y = 10
x + y = 9
y = 9 - x
Substitution of y:
x + 10 - x + y = 12
x + 10 - x + 9 - x = 12
-x + 19 = 12
-x = 12 - 19
x = 7 ⇒ 10 - x = 3
Cameron and Rebecca purchased 7 tomatoes, 3 carrots and 2 broccoli.
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which kind of triangle is shown
right isosceles triangle.
Right Scalene Triangle
Step-by-step explanation:Definitions:Angles
Acute angle: An angle whose measure is less than 90 degrees.
Right angle: An angle whose measure IS 90 degrees. As a consequence, the two rays that form the angle are perpendicular.
Obtuse angle: An angle whose measure is greater than 90 degrees.
Triangles (defined by side lengths)
Equilateral Triangle: A triangle with all three sides congruent (all three sides have the same length)
Isosceles Triangle: A triangle that contains two congruent sides (two sides with the same length).
Scalene Triangle: A triangle with three different length sides.
Triangles (defined by angle measures)
Acute Triangle: A triangle whose angles are all acute angles
Right Triangle: A triangle that contains one right angle.
Obtuse Triangle: A triangle that contains one obtuse angle.
Analyzing our triangle:By angle
Our triangle has an angle that appears to be a right angle (the two sides look perpendicular). This would be a Right Triangle (when classified by angles).
By side length
All three sides of this triangle are different in length. This would be a Scalene Triangle (when classified by side length).
Combining the attributes:
This is both a Right Triangle and a Scalene Triangle. Together, it is a Right Scalene Triangle.
Analyzing the other options given:Right Isosceles
To be a Right Isosceles Triangle, the triangle needs to be both a Right Triangle, and an Isosceles Triangle.
A Right triangle contains one right angle, and an Isosceles Triangle contains a pair of sides that are the same length.
While this triangle does contain a right angle, all three sides appear to be different length (scalene).
This is not a Right Isosceles Triangle.
Acute Isosceles
To be an Acute Isosceles Triangle, the triangle needs to be both an Acute Triangle, and an Isosceles Triangle.
An Acute Triangle contains all angles that are acute angles (less than 90 degrees), and an Isosceles Triangle contains a pair of sides that are the same length.
However, this triangle contains a right angle (equal to 90 degrees, not less than), so it cannot be an Acute Triangle, and this triangle does not contain a pair of sides that are the same length, so it cannot be an Isosceles Triangle.
This is not an Acute Isosceles Triangle.
Acute Scalene
To be an Acute Scalene Triangle, the triangle needs to be both an Acute Triangle, and a Scalene Triangle.
An Acute Triangle contains all angles that are acute angles (less than 90 degrees), and a Scalene Triangle has sides that are all different length.
While this triangle does have sides that are all different length, it contains a right angle, whose measure IS 90 degrees (not less than 90 degrees). So it cannot be an Acute Triangle
This is not an Acute Scalene Triangle.
A lottery has a very large number of tickets, one in every 500 of which entitles the purchaser to prize. Find the minimum number of tickets the agent must sell to have 95% chance of selling at least one prize winning ticket.
The minimum number of tickets the agent must sell to have a 95% chance of selling at least one prize-winning ticket is 368 tickets
To unravel this issue, we are able to utilize the concept of likelihood. Let's begin with discovering the likelihood of not offering any prize-winning tickets with one ticket:
- The likelihood of not winning with one ticket is 499/500 (since there's as it were one winning ticket out of 500).
- The likelihood of not winning with n tickets is (499/500)[tex]^n[/tex](since the probabilities are autonomous and we duplicate them together).
Presently, we need to discover the least number of tickets the specialist must offer to have a 95% chance of offering at the slightest one prize-winning ticket. In other words, we need to discover the least esteem of n such that:
- The likelihood of not winning with n tickets is less than or rises to 5% (or 0.05).
- This can be identical to (499/500)[tex]^n[/tex]≤ 0.05.
We will illuminate for n utilizing logarithms:
- Take the normal logarithm of both sides:
ln[(499/500)[tex]^n[/tex]] ≤ ln(0.05).
- Utilize the logarithmic property of types to bring down the example:
n ln(499/500) ≤ ln(0.05).
- Fathom for n by partitioning both sides by ln(499/500) and taking the ceiling work (since n must be an entire number):
n = ceil[tex][ln(0.05) / ln(499/500)].[/tex]
Employing a calculator, we get
n = ceil[tex][ln(0.05) / ln(499/500)][/tex]≈ 368
In this manner, the specialist must offer at the slightest 368 tickets to have a 95% chance of offering at the slightest one prize-winning ticket.
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Can someone help me with thisss plssss it’s due today
Part A: The equation of the circle in standard form is x² + (y - 7)² = 2².
Part B: Center: (h, k) = (0, 7), Radius: 2
Part C: Please check the attachment.
How to analyze and graph the equation of a circle
In this problem we find the definition of the equation of a circle in general form, whose standard form must be found:
(x - h)² + (y - k)² = r²
Where:
(h, k) - Coordinates of the center.r - RadiusThis can be done by completing the square. First, write the equation of the circle:
x² + y² = 14 · y - 45
Second, complete the square by algebra properties:
x² + y² - 14 · y + 45 = 0
x² + (y² - 14 · y + 49) = 4
x² + (y - 7)² = 2² (PART A)
Third, write the coordinates of the center and the radius of the circle:
Center: (h, k) = (0, 7), Radius: 2 (PART B)
Finally, we proceed to graph the resulting expression.
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What are implications of Constructivist approach in teaching mathematics?
The implications of Constructivist approach in teaching mathematics is that it helps the students to develop a better way to comprehend the content of what they are being taught.
What is a constructive approach of teaching mathematics?A constructive approach of teaching mathematics believes that students construct knowledge rather than just passively take in information.
A constructive approach of teaching also believes that students integrate new knowledge with existing knowledge to create a deeper understanding of the mathematics being taught to them.
Therefore, constructive approach of teaching can help the students to comprehend the content of what they are being taught.
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Please answer quick I will mark BRAINLIEST . Simplify the expression (-1/7r - 9 -2/3r) - (-5/7r + 10)
A. -32/21r - 1
B. -2/21r + (-19)
C. -2/21r - 1
D. 4/11r + (-19)
Answer:
Answer is -2/21r + (-19)
Step-by-step explanation:
(-1/7r - 9 -2/3r) - (-5/7r + 10)
= -1/7r - 9 - 2/3r + 5/7r - 10 (distributing the negative sign)
= (-1/7r + 5/7r) + (-2/3r) - 9 - 10 (grouping the like terms)
= 4/7r - 2/3r - 19 (combining the like terms)
= (12r - 14r)/21r - 38r/21r (getting a common denominator)
= -2r/21r - 38r/21r
= (-2r - 38r)/21r
= -40r/21r
= -40/21
Therefore, the simplified expression is B. -2/21r + (-19).
a metallurgist has one alloy containing 30% aluminum and another containing 54% aluminum. How many pounds of alloy must he use to make 48 pounds of a third alloy containing 52% aluminum? (round to two decimal places if necessary).
[tex]x=\textit{lbs of aluminum at 30\%}\\\\ ~~~~~~ 30\%~of~x\implies \cfrac{30}{100}(x)\implies 0.3 (x) \\\\\\ y=\textit{lbs of aluminum at 54\%}\\\\ ~~~~~~ 54\%~of~y\implies \cfrac{54}{100}(y)\implies 0.54 (y) \\\\\\ \textit{48 lbs of aluminum at 52\%}\\\\ ~~~~~~ 52\%~of~48\implies \cfrac{52}{100}(48)\implies 0.52 (48)\implies 24.96 \\\\[-0.35em] ~\dotfill[/tex]
[tex]\begin{array}{lcccl} &\stackrel{lbs}{quantity}&\stackrel{\textit{\% of lbs that is}}{\textit{AL only}}&\stackrel{\textit{lbs of}}{\textit{AL only}}\\ \cline{2-4}&\\ \textit{1st alloy}&x&0.3&0.3x\\ \textit{2nd alloy}&y&0.54&0.54y\\ \cline{2-4}&\\ mixture&48&0.52&24.96 \end{array}~\hfill \begin{cases} x + y = 48\\\\ 0.3x+0.54y=24.96 \end{cases} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\stackrel{\textit{using the 1st equation}}{x+y=48\implies y=48-x} \\\\\\ \stackrel{\textit{substituting on the 2nd equation from above}}{0.3x~~ + ~~0.54(48-x)~~ = ~~24.96}\implies 0.3x+25.92-0.54x=24.96 \\\\\\ 0.30x-0.54x=-0.96\implies -0.24x=-0.96\implies x=\cfrac{-0.96}{-0.24} \\\\\\ \boxed{x=4}\hspace{9em}y=48-x\implies \boxed{y=44}[/tex]
A patient has been prescribed intravenous acetylcysteine for a paracetamol overdose. The initial dose has just finished and they now require 3000mg in 500ml glucose over four hours. You are asked to double check the amount of acetylcycteine that has been drawn up for addition to the glucose. If you have ampuoles comtaining 20% acetylcysteine, what volume must be drawn up to make the infusion?
please can someone help me with how to work this out? :(
For the 4-hour infusion, 1500ml of the 20% acetylcysteine solution must be made up and combined with 500ml of glucose.
To calculate the volume of acetylcysteine that needs to be added to the glucose, we can use the following formula:
The volume of acetylcysteine (in ml) = (Total amount of acetylcysteine needed in mg / Concentration of acetylcysteine in mg/ml) x 100
We have been asked to add 3000mg of acetylcysteine to 500 ml of glucose. If the concentration of the ampoule containing acetylcysteine is 20%, this means that there are 20g of acetylcysteine in 100 ml of solution, or 200mg/ml.
Using the formula above, we can calculate the volume of acetylcysteine that needs to be added as follows:
Volume of acetylcysteine = (3000mg / 200mg/ml) x 100 = 1500ml
Therefore, 1500ml of the 20% acetylcysteine solution needs to be drawn up and added to the 500ml of glucose to make the 4-hour infusion.
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Help please im not that good in math
Answer: the awnser is b
Step-by-step explanation:
mrs lane has 16 girls and 12 boys in her homeroom. she must randomly choose two students to serve as representatives in the students council. what is the probability that she choose two boys
The probability of randomly choosing two boys is 0.174
How to find the probability that she choose two boys?If the selection is done at random, then the probability of choosing a boy is equal to the quotient between the number of boys and the total number of people.
There are 12 boys and 16 + 12 = 28 students in total, then the probability is:
P = 12/28
Now, for the second selection the probability is computed in the same way, but now there are 11 boys and 27 students (one was already choosen), then:
P = 11/27
the joint probability (for the two selections) is given by the product between the individual probabilities, we will get:
P = (12/28)*(11/27)
P = 0.174
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Part 1: Simulation (20 points)
A: You are given $15,000 to invest in stocks. Research current stocks online and choose two in which to split your investment. Fill in the table below. (2 points)
Name of Stock Symbol Quantity of Shares Purchased Purchase Price per Share Total Purchase Value
B: Record the daily closing price of your stocks in the table below, either by monitoring your stocks live or by researching the 7-day historical data. (3 points)
Name of Stock Closing Price Day 1 Closing Price Day 2 Closing Price Day 3 Closing Price Day 4 Closing Price Day 5 Closing Price Day 6 Closing Price Day 7
C: Determine the total profit or loss if all shares for both stocks are sold at the close of business on day 7. Assume a 1.5% brokerage fee. (5 points)
D: Based on the closing price data for the week, explain which individual day would have been the best to sell each stock, and why. (5 points)
E: Determine the difference in profit or loss if stocks were sold based on your answer to part D instead of the prices in part C. (5 points)
Part 2: Comparing Portfolios (10 points)
Analyze the investment portfolio below. Then answer the questions using complete sentences.
A: Evaluate the diversity of this portfolio. Explain, using complete sentences, if this portfolio is not diverse, minimally diverse, somewhat diverse, or extremely diverse. Why? (3 points)
B: Describe the risk factor of this portfolio. Is this an aggressive, conservative, or moderate portfolio? How do you know? (3 points)
C: Describe an individual who might carry this type of portfolio. Include such details as:
• age
• occupation
• investment goals
C. The total profit, if all shares for both stocks are sold at the close of business on day 7, is $587.62
D. The best day to sell TechCo shares would be day 7, as it had the highest closing price. For HealthCo, day 7 would also be the best day to sell.
E. There is no difference in profit or loss compared to part C.
Part 2
A. Diversity can be evaluated based on the portfolio in question
B. By analyzing the types of assets present in the portfolio, it is possible to determine where potential risks may originate.
C. The individual carrying a particular portfolio can be characterized based on their risk tolerance, financial goals, and stage of life.
How to solvePart 1:
A. TechCo (TCO) and HealthCo (HCO) have their shares priced at $100 and $50 respectively.
Name of Stock Symbol Quantity of Shares Purchased Purchase Price per Share Total Purchase Value
TechCo TCO 75 $100 $7,500
HealthCo HCO 150 $50 $7,500
B. Here is an illustration of the potential ending values:
Name of Stock Closing Price Day 1 Closing Price Day 2 Closing Price Day 3 Closing Price Day 4 Closing Price Day 5 Closing Price Day 6 Closing Price Day 7
TechCo $101 $99 $100 $98 $102 $101 $103
HealthCo $51 $50 $52 $49 $51 $52 $54
C. If we sell all shares on day 7, we can calculate the profit/loss and the brokerage fee:
TechCo: 75 shares * $103/share = $7,725
HealthCo: 150 shares * $54/share = $8,100
Total = $7,725 + $8,100 = $15,825
Brokerage fee = $15,825 * 1.5% = $237.38
Profit = $15,825 - $15,000 (initial investment) - $237.38 (brokerage) = $587.62
D. The best day to sell TechCo shares would be day 7, as it had the highest closing price. For HealthCo, day 7 would also be the best day to sell.
E. Since we've already assumed selling on the best day, there is no difference in profit or loss compared to part C.
Part 2:
A. Diversity can be evaluated based on the portfolio in question. A portfolio that encompasses investments in a variety of sectors, asset classes, and regions would exhibit a high level of diversity.
B. By analyzing the types of assets present in the portfolio, it is possible to determine where potential risks may originate.
An investment portfolio that primarily consists of stocks or other assets with high risks would be considered as an aggressive portfolio. A portfolio that primarily consists of bonds or low-risk assets is considered to be a conservative one.
A balance between the two would be a moderate portfolio.
C. The individual carrying a particular portfolio can be characterized based on their risk tolerance, financial goals, and stage of life.
For example, a young professional with a high-risk tolerance might carry an aggressive portfolio to maximize growth, while a retired individual might have a conservative portfolio to preserve their capital.
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Enter the number that belongs in the green box
Answer:
Set your calculator to Degree mode.
10² = 6.78² + 4² - 2(6.78)(4)(cos x)
100 = 61.9684 - 54.24(cos x)
38.0316 = -54.24(cos x)
cos x = -.701173
[tex]x = {cos}^{ - 1} ( - .701173)[/tex]
x = 134.52°
I have the most difficult problem ever!! Prove the four-color theorem.