Answer:
Here is your answer!!!
Step-by-step explanation:
a=3,b=-4,c=-1
Discriminate (D)= b^2-4ac
D= (-4)^2-4(3)(-1)
D=16-(12)
D=16-12=4
x=-b±√b^2-4ac/2a
x=-(-4)±√4/2(3)
x=4±2/6
x=4+2/6=1
x=4-2/6=1/3
x=1,1/3
cot(45-A)=tan2A+ sec2A
Answer:
See picture.
Step-by-step explanation:
On a coordinate plane, a solid straight line has a positive slope and goes through (negative 3, negative 5) and (0, negative 4). Everything to the right of the line is shaded. Which linear inequality is represented by the graph?
Answer:
y<= 1/3x-4
Step-by-step explanation:
Its an inequality thats why
Use the given information to draw a box-and-whisker plot of the data set
Minimum – 28
Maximum – 54
Lower Quartile – 32
Upper Quartile – 40
Answer:
The box-and-whisker plot of this distribution is presented in the attached image to this solution.
Step-by-step explanation:
A box plot gives a visual representation of the distribution of the data, showing where most values lie and those values that greatly differ from the rest, called outliers.
A box and whiskers plot shows 5 major information about the distribution of data. It shows:
- The maximum variable.
- The minimum variable.
- The Median.
- The first quartile.
- The third quartile.
Further info such as the range and Inter quartile range can then be obtained from this 5-number summary.
The elements of the box plot are described thus;
The bottom side of the box represents the first quartile, and the top side, the third quartile. Therefore, the width of the central box represents the inter-quartile range.
The horizontal line inside the box is the median.
The lines extending from the box reach out to the minimum and the maximum values in the data set, as long as these values are not outliers. The ends of the whiskers are marked by two shorter horizontal lines.
Variables in the dataset, higher than Q3+(1.5×IQR) or lower than Q1-(1.5×IQR) are considered outliers and are usually shown using dots above the top whisker or below the bottom whisker.
The required boxplot for this question is given in the attached image to this solution.
The median for the boxplot isn't provided, but it was assumed to be midway between the first and third quartile.
Hope this Helps!!!
can someone help me answer this
Answer:
A
Step-by-step explanation:
find the midpoint of the line segment that has endpoints at (10,8) (-3,-10)
Hey there! :)
Answer:
(3.5, -1).
Step-by-step explanation:
Use the midpoint formula to solve this problem:
[tex](x_m, y_m) = (\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})[/tex]
Plug in the coordinates given:
[tex](\frac{10-3}{2}, \frac{8-10}{2})[/tex]
Simplify:
[tex](\frac{7}{2}, \frac{-2}{2})[/tex]
Therefore, the coordinates of the mid-point are:
(3.5, -1).
What is the distance from point (-5,-4) to (9,2)?
Answer:
radical 232
Step-by-step explanation:
14^2+6^2=x^2
196+36= 232
radical 232
Answer: Distance is 15.2
Step-by-step explanation:
[tex]d = √((x2-x1)2 + (y2-y1)2)[/tex]
[tex](x2-x1) = (9 - -5) = 14[/tex]
[tex](y2-y1) = (2 - -4) = 6[/tex]
[tex](14)2 + (6)2 = 196 + 36 = 232[/tex]
[tex]\sqrt{232} =15.2315[/tex]
round to the nearest 10th
Angles that measure between 0 and 90 degrees are called_?
Answer:
Acute angles.
Step-by-step explanation:
Acute angles are from 0-90 degrees.
Hope this helps :)
Answer:
Acute angles
Step-by-step explanation:
Acute angles are measured between 0 and 90 degrees.
If the four lines are extended, which system would have only one solution? On a coordinate plane, lines a and b would intersect. Lines c and d are the same line. line a and line b line b and line c line b and line d line c and line d
Answer:
a
Step-by-step explanation:
took the quiz
Answer:
A
Step-by-step explanation:
took the quiz
Solve for f. -11f=7(1-2f)+5
Answer:
4
Step-by-step explanation:
Our equation is -11f= 7*(1-2f)+5
-11f=7*(1-2f)+5 7*(1-2f)+5+11f=07-14f+5+11f=012-3f=0f=12/4f=4
Please help! (It’s about slope)
Answer:
The slope is -2/3
Step-by-step explanation:
We find the slope by using the slope formula
m= ( y2-y1)/(x2-x1)
= ( -1 -3)/( 3- -3)
= -4 /( 3+3)
= -4 / 6
= -2/3
The slope is -2/3
Answer:
-2/3
Step-by-step explanation:
To find the slope, use 2 points and the slope formula:
m= (y2-y1)/(x2-x1)Points are: (-3, 3) and (3, -1)
m= (-1-3)/(3+3)= -4/6= -2/3The slope is -2/3
Brian set his compass equal to the radius of circle C and drew two circles centered at points A and B on circle C. He labeled the points of intersection of the two circles as shown. To complete his construction, Brian only needs to use his straightedge to draw some chords of circle C. Which figures could Brian be constructing? equilateral triangle MNQ inscribed in circle C equilateral triangle ANP inscribed in circle C regular hexagon AMNBPQ inscribed in circle C square MNPQ inscribed in circle C square ANBQ inscribed in circle C
Answer:
equilateral triangle ANP inscribed in circle C
regular hexagon AMNBPQ inscribed in circle C
Step-by-step explanation:
By looking through our choices, we can eliminate which choices could be wrong and which choices could be right.
Δ MNQ does form a triangle, however, it DOES NOT form a equilateral triangle.
Δ ANP does form a triangle and it is ALSO an equilateral triangle.
Hexagon AMNBPQ does form a hexagon and it is ALSO a regular polygon as we can see all the sides and angles within the polygon are congruent to one another.
MNPQ does form a quadrilateral, however, it DOES NOT form a square. It is instead a rectangle.
ANBQ does form a quadrilateral, however, it DOES NOT form a square. It is instead a rectangle.
By looking through our observations, we can conclude that Δ ANP and hexagon AMNBPQ are the correct choices.
- 2022 Edmentum
The equilateral triangle ANP inscribed in circle C and the regular hexagon AMNBPQ inscribed in circle C. Then the correct options are B and C.
What is Geometry?It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
Brian set his compass equal to the radius of circle C and drew two circles centered at points A and B on circle C.
He labeled the points of intersection of the two circles as shown.
The equilateral triangle ANP inscribed in circle C and the regular hexagon AMNBPQ inscribed in circle C.
Then the correct options are B and C.
The complete question is attached below.
More about the geometry link is given below.
https://brainly.com/question/7558603
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Clara would like to buy a toy for her baby sister that sells for
$12.49. How much will the toy cost after 13% tax? (Round to the nearest
cent)
Which point is located at (4, -2)?
y
5
ТА
4
3
2+
1
2 3
Х
-5 -4 -3 -2 -11
-2
4 5
B
-4
D
b
Answer:
Point B of 4the quertant
What is the value of x in the equation -X = 3 - 4x + 6?
0-9
0-3
03
09
Answer:
x=3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
I took the test!
What are the zeroes of f(x) = x2 - 6x + 8?
Ox= -4,2
Ox= -4,-2
O x = 4,2
Ox=4, -2
Step-by-step explanation:
x² -6x+8=0
x²-4x-2x+8=0
x(x-4)-2(x-4)=0
(x-2)(x-4)=0
x = 2 OR 4
hence ox = 4,2
Need help solving. Prefer you show each step in solving.
Answer:
55
Step-by-step explanation:
For PQ and RS to be parallel, the two degrees must be equal.
3x - 65 = 2x - 10
(3x - 65) + 65 = (2x - 10) + 65
3x = 2x + 55
(3x) - 2x = (2x + 55) - 2x
x = 55
A polynomial is factored using algebra tiles. An algebra tile configuration. 0 tiles are in the Factor 1 spot and 0 tiles are in the Factor 2 spot. 15 tiles are in the Product spot in 3 columns with 5 rows: 1 is labeled + x squared, 2 are labeled + x, the 4 tiles below + x squared are labeled negative x, and the 8 tiles below the + x tiles are labeled negative. Which polynomial was factored? x2 – 2x – 8 x2 + 2x – 8 x2 – 2x – 4 x2 + 2x – 4
Answer:
x² - 2x - 8
Step-by-step explanation:
Algebra tiles are tiles used to represent variables or numbers and are rectangular or square shaped.
1 is labeled + x squared, this gives x²
2 are labeled + x, this gives +x × 2 = +2x
4 tiles below + x squared are labeled negative x, this gives - x × 4 = - 4x
8 tiles below the + x tiles are labeled negative, this gives -1 × 8 = -8
Therefore to get the polynomial that was factored, we add all the terms. This gives :
+x² + (+ 2x) + (-4x) + (-8) = x² + 2x - 4x - 8 = x² - 2x - 8
Answer:
The answer is A, and if edge is being weird the answer is x^2-2x-8, Have fun dreamers!
Step-by-step explanation:
Of the four choices given, which two, when written as a system, have a solution of (–4, 5)? A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 2, 3, 5. Column 2 is labeled y with entries 2, negative 1, negative 2, negative 4. 2 x + y = negative 3 Negative 2 x + y = negative 3 A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 2, 3, 7. Column 2 is labeled y with entries 0, negative 3, negative 4, negative 8. 2 x + y = negative 3 and A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 2, 3, 5. Column 2 is labeled y with entries 2, negative 1, negative 2, negative 4. Negative 2 x + y = negative 3 and A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 2, 3, 5. Column 2 is labeled y with entries 2, negative 1, negative 2, negative 4. 2 x + y = negative 3 and A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 2, 3, 7. Column 2 is labeled y with entries 0, negative 3, negative 4, negative 8. Negative 2 x + y = negative 3 and A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 2, 3, 7. Column 2 is labeled y with entries 0, negative 3, negative 4, negative 8.
Answer:
The answer is a.
Step-by-step explanation:
Hope this helps!
Answer:
It's A)
Step-by-step explanation:
10. If there is a crossword that has four squares that need to be filed, how many possible four letter arrangements are there (assuming they do not have to make a real word)?
Answer:
See Explanation
Step-by-step explanation:
The question didn't specify if letter can be repeated or not;
I'll solve for both;
Given
Number of Letters = 26
Number of squared = 4
If Repetition is allowed;
The four squares can take any of the 26 letters in any order
The first letter can be any of 26; Same with the second, third and fourth letters;
Number of Arrangement = 26 * 26 * 26 * 26
Number of Arrangement = 26⁴
Number of Arrangement = 456976
If Repetition is not allowed;
The first square can be filled with any of the 26 letters;
The second can take any of (26 - 1) letters
The third can take any of (26 - 2) letters
The fourth can take any of (26 - 3) letters
Number of Arrangement = 26 * (26 - 1) * (26 - 2) * (26 - 3)
Number of Arrangement = 26 * 25 * 24 * 23
Number of Arrangement = 358800
Answer:
26!/22!
Step-by-step explanation:
I just took the quiz I got it right
Find the value of x
2x + 46 = 7x + 6
Answer:
7x-2x = 46-65x = 40 x = 40/5 x =8 ......hope it helps .........Answer:
so x=8
Step-by-step explanation:
2x+46=7x+6
subtracting 7x on both sides
2x-7x+46=7x-7x+6
-5x+46=6
subtracting 46 on both sides
-5x+46-46=6-46
-5x=-40
5x=40
x=8
i hope this will help you :)
0.00045-2.5*10^-5 in scientific notation?
Answer:
The answer is 4.25*10^−4
Step-by-step explanation:
First convert 2.5*10^-5 into decimal form
That's
2.5*10^-5 = 0.000025
0.00045 - 0.000025 = 0.000425
= 4.25*10^−4 in scientific notation
Hope this helps
Answer:
4.25*10^−4
Step-by-step explanation:
khan
What is the result of subtracting the second equation from the first? 8x-4y=-4 -3x+4y=5
━━━━━━━☆☆━━━━━━━
▹ Answer
(x, y) = (14/5, 87/20)
▹ Step-by-Step Explanation
8x - 4y = -4 - 3x + 4y = 5
8x - 4y = 5
-4 - 3x + 4y = 5
8x - 4y = 5
-3x + 4y = 9
5x = 14
x = 14/5
-3 * 14/5 + 4y = 9
y = 87/20
(x, y) = (14/5, 87/20)
Hope this helps!
- CloutAnswers ❁
Brainliest is greatly appreciated!
━━━━━━━☆☆━━━━━━━
Answer:
11x−8y=−9
Step-by-step explanation:
khan
ASAP! I do not accept nonsense answers, but BRAINLIEST will be given to the person who gets it correct with full solutions.
Answer:
A
Step-by-step explanation:
The range refers to the possible y-values. You can assume that values on the right column are the y-values if it is not specifically expressed. The right column is the output, or y, column.
Since you have a table, you have to state each number. Put the numbers in numerical order. This gives you an answer of
{46, 49, 52, 53, 58, 63, 64, 67}
Explain how to determine the solutions to a quadratic equation, graphically.
Answer:
In a nutshell, you have to graph the parabola. Where the parabola intersects the x-axis is the solutions to the quadratic equation.
6x + 7y + x-8y = 7x - y
Write down three other expressions that are equal to 7x - y
Answer:
It's pretty easy! You can manipulate the numbers to match the equation.
For example,
x + 8y + 6x - 9y = 7x - y
5x + 2x - 2y + y = 7x - y
10x + 7y - 3x - 8y = 7x - y
The other equivalent expressions that are equal to 7x - y could be; x + 8y + 6x - 9y = 7x - y, 5x + 2x - 2y + y = 7x - y and 10x + 7y - 3x - 8y = 7x - y
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division. The Numbers constants, variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbol; that can also be used to indicate the logical syntax's order of operations and other features.
We have been given the expression as;
6x + 7y + x-8y = 7x - y
When someone asks to solve an equation, then it usually mean to find the values of the unknowns for which that equation would be true (the equality between expressions should hold true for those values).
The other equivalent expressions that are equal to 7x - y could be;
x + 8y + 6x - 9y = 7x - y
5x + 2x - 2y + y = 7x - y
10x + 7y - 3x - 8y = 7x - y
To know more about an expression follow;
brainly.com/question/19876186
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1
11 Kenzie monitors her investment on a technology
stock. She uses the expression 2013e2+, where t
is the time in years, to estimate the future value
of the stock. What is the meaning of 2013 in this
context?
A. beginning year
B. invested amount
C. future value
D. annual growth rate
Answer:
B
Step-by-step explanation:
The term 2013 in this context refers to the amount invested.
Mathematically, in finance, we can express the amount to be recouped on an investment, having a particular rate of return over a couple of years using the general formula;
V = P(1+r)^t
Such as in the case of amount obtained in a compound interest formula
Where P is the present value or principal or amount invested
V is the future value
r is the rate of investment
with t being the time taken
Which is the graph of f(x)=2(3) to the x power?
Answer:
Use a graphing calc.
Step-by-step explanation:
Caleb types 100 words in 5 minutes what is the unit rate
Basically, the unit rate is known as the simplest form of something. In this case, you're trying to figure out how many words he types in 1 minute.
Here's the work:
100 words = 5 minutes
100/5 = 5/5
20 words = 1 minute.
Please vote my answer the Brainliest if it helped! Don't be afraid to ask questions if you didn't understand!
Answer:
20 words per minute
Which metric unit would be best to measure the volume of water in a swimming pool?
Answer:
HEY!
your answer is
it would be best to use litres
this is because a litre is 1000 millilitres and a swimming pool is a large amount of water.
Step-by-step explanation:
hope this helps
pls put brainliest
The half-life of a certain tranquilizer in the bloodstream is 47 hours. How long will it take for the drug to decay to 93% of the original dosage? Use the exponential decay model, Upper A equals Upper A 0 e Superscript kt, to solve.
Answer:
It will take 4.84 hours for the drug to decay to 93% of the original dosage.
Step-by-step explanation:
We are given that the half-life of a certain tranquilizer in the bloodstream is 47 hours.
The given exponential model is: [tex]A = A_0 e^{kt}[/tex]
Now, we know that A becomes half after 47 hours which means that;
[tex]A = 0.5 A_0[/tex]
Using this in the above equation we get;
[tex]A = A_0 e^{kt}[/tex]
[tex]0.5 A_0 = A_0 e^{(k\times 47)}[/tex] where t = 47 hours
[tex]\frac{0.5 A_0}{A_0} = e^{(47k)}[/tex]
[tex]0.5 = e^{47k}[/tex]
Taking log on both sides we get;
[tex]ln(0.5) = ln(e^{47k})[/tex]
[tex]ln(0.5) =47k[/tex]
[tex]k = \frac{ln(0.5)}{47}[/tex]
k = -0.015
Now, the time it will take for the drug to decay to 93% of the original dosage is given by;
[tex]0.93 = e^{kt}[/tex] where t is the required time
[tex]0.93 = e^{(-0.015 \times t)}[/tex]
Taking log on both sides we get;
[tex]ln(0.93) = ln(e^{-0.015t})[/tex]
[tex]ln(0.93) =-0.015t[/tex]
[tex]t = \frac{ln(0.93)}{-0.015}[/tex]
t = 4.84 hours
Hence, it will take 4.84 hours for the drug to decay to 93% of the original dosage.