Answer:
Step-by-step explanation:
Volume of a sphere:
V = 4/3 x pi x r^3
5. 3053.63mm^3
18 / 2 = 9mm = radius
4/3 x pi x 9^3 = 3053.628
8. 11494.04mm^3
28 / 2 = 14mm
4/3 x pi x 14^3 = 11494.040
Explain how combining like radicals is similar to combining like terms.
Answer:
Just like combining like terms with the same variables, you combine like
radicals with the same number under the radical signs.
Step-by-step explanation:
Example:
3x + 2x
= 5x {combined like terms}
3√2 + 2√2
= 5√2 {combined like radicals}
Combining two or more terms are similar to combining two or more radicals.
What is a radical?
The 'n' th root of a number 'x' is written as [tex]\sqrt[n]{x}[/tex]. It is called a radical.
Combining two or more terms:
(a + 2a + 97a) = 100a
Combining two or more radicals:
(a[tex]\sqrt{3}[/tex] + 9a[tex]\sqrt{3}[/tex] + 90a[tex]\sqrt{3}[/tex]) = 100a[tex]\sqrt{3}[/tex]
Therefore, combining two or more terms are similar to combining two or more radicals.
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Please help with this
Answer:
the answer is A. 99 degrees because 81 + 18 = 99
Answer:
99°
Step-by-step explanation:
Tommy can exchange 8 euros for 11 dollars.At this rate, how many dollars can Tommy get with 12 euros?
Answer:
16.50 dollars
Step-by-step explanation:
We can use proportion
8 euros --- 11 dollars
12 euros --- x dollars
x = 12 * 11/8 = 16.5= 16.50 dollars
Answer:
16.5 dollars
Step-by-step explanation:
Let's make a proportion using the following setup.
dollars/euros=dollars/euros
Tommy can get 11 dollars for 8 euros. We don't know how many dollars he can get with 12 euros. Therefore, we can say that he can get x dollars with 12 euros.
11 dollars/8 euros=x dollars/12 euros
11/8=x/12
We want to find out what x is. In order to do this, we have to get x by itself. Perform the opposite of what is being done to the equation. Keep in mind, everything done to one side, has to be done to the other.
x is being divided by 12. The opposite of division is multiplication. Multiply both sides by 12.
12*(11/8)=(x/12)*12
12*11/8=x
12*1.375=x
16.5=x
Tommy can get $16.50 with 12 euros.
Danville Street and Belmont Avenue intersect. If the diagonal distance across the intersection is 9.6 meters and Danville Street is 8.1 meters wide, how wide is Belmont Avenue? If necessary, round to the nearest tenth.
Answer:
Width of Belmont Avenue is 5.2 meters
Step-by-step explanation:
We use the Pythagoras theorem to solve the problem
Pythagoras Theorem states that:
Hypotenuse² = Base² + Perpendicular²
Danville Street, Belmont Avenue and their diagonal forms a right angled triangle
In this case, let the base be Danville Street with width of 8.1 meters
Let the hypotenuse be 9.6 meters
We need to find the perpendicular
Put the values in Pythagoras theorem.
9.6² = 8.1² + perpendicular²
perpendicular² = 9.6²-8.1²
perpendicular² = 92.16 - 65.61
perpendicular² = 26.55
take square root on both sides
perpendicular =5.153
Round of to nearest 10th
Perpendicular = 5.2 meters
Belmont Avenue = 5.2 meters
Giving brainliest, please answer as soon as possible.
Answer:
Step-by-step explanation:
There are five lines of symmetry in a regular pentagon:
Each going from side midpoint to opposite vertex.
here is a drawing of all of them filled in:
what graph best shows a positive correlation between the number of hours studied and the test scores ?
Determine whether the triangles are similar. If so, write a similarity statement. answers:: A) The triangles are similar; ΔQRS ∼ ΔTUV. B) There isn't enough information to determine whether the triangles are similar. C) The triangles are not similar. D) The triangles are similar; ΔQRS ∼ ΔVUT.
Answer:
C) The triangles are not similar
Step-by-step explanation:
There are 3 triangle similarity theorems:
If two of the angles are the same, the third angle is the same and the triangles are similar.If the three sides are in the same proportions, the triangles are similar.If two sides are in the same proportions and the included angle is the same, the triangles are similar.We can find the all the angles of both triangles, so we can determine the similarity of these triangles only by first theorem
Angles of ΔQRS:
<Q = 63°
<R = 90°
<S = 180°-63°-90° = 27°
Angles of ΔTUV:
<T=180°-90°-25° = 65°
<U = 90°
<V = 25°
As none of the angles are same, triangles are not similar.
What is the value of log6255?
Answer:
1/4
Brainliest!Step-by-step explanation:
1/4 on my calculator
The value of log 5 to the base 625 is 1/4 .
How to find the value of logarithm with any base value -From the definition of logarithm , we know that if log a to the base b is equal to x , where a, b are non negative integer and x is an assumed positive integer then we have ,
∴ log a to the base b = x
⇒ [tex]a = b^{x}[/tex]
Thus we can take log 5 to the base 625 = x
∴ [tex]5 = 625^{x}[/tex]
From the above equation, we can get the value of x as 1/4
Thus the value of log 5 to the base 625 is 1/4
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Please help!!!!! WILL MARK BRAINLIEST!!!!
Graph the system of linear inequalities on the coordinate plane y>/-1/2x+2 1/2
Y<1/5x+6
A) shade the solution to the system of inequalities
B) pick a point and show your solution is correct
Answer:
see below
Step-by-step explanation:
y[tex]\geq[/tex] ..... means full line and shading above the line
Y< ......means doted line and shading below the line
A) solution is overlapping shaded part
B) (10,5)
plug in point in inequalities and check if it's true; if it's true you showed that solution is correct
1. 5[tex]\geq[/tex]-1/2*10 + 2 1/2
5[tex]\geq[/tex] -5 + 2 1/2
5[tex]\geq[/tex] -2 1/2 TRUE
2. 5[tex]<[/tex]1/5*10 + 6
5< 2 + 6
5< 8 TRUE
The solution to the inequality equation is ( -5 , 5 )
What is an Inequality Equation?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.
Given data ,
Let the first inequality relation be represented as A
Now , the value of A is
y ≥ ( -1/2 )x + 2 1/2
y ≥ ( -1/2 )x + 5/2 be equation (1)
Let the second inequality relation be represented as B
Now , the value of B is
y < ( 1/5 )x + 6
On simplifying the equation , we get
Graphing the inequalities we get the common point as ( -5 , 5 )
Substitute the value of x = -5 and y = 5 in the inequality equations , we get
y ≥ ( -1/2 )x + 5/2
Substitute x = -5 and y = 5
5 ≥ ( -1/2 ) ( -5 ) + 5/2
5 ≥ 5/2 + 5/2
5 ≥ 10/2
5 ≥ 5
The inequality is true
Now , y < ( 1/5 )x + 6
Substitute x = -5 and y = 5
5 < ( 1/5 ) ( -5 ) + 6
5 < -1 + 6
5 < 5
The inequality is true when the value of x > -5
Hence , the equations are solved
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PLEASE HELP FOR THIS QUESTION
Answer:
[tex]5^{8}[/tex]
Step-by-step explanation:
[tex]5^{2^{3} } =\\5^{8}[/tex]
We get this because we need to cube the first exponent first. (confusing? Reply to my answer)
Answer:
5^8
Step-by-step explanation:
When I multiply the given expression, I get 390625. Then, when I multiply the options, the one that matches that number is 5^8.
What is the measure of theta
Answer:
B. 3 radians
Step-by-step explanation:
We are given the following components of the circle.
Radius of circle (r) = 4 cm
Length of arc (l) = 12 cm
Lenght of arc of a circle is given by the following formula:
[tex] l = \frac{\theta}{2\pi^c}\times 2\pi r[/tex]
Substituting the values of l and r in the above formula, we find:
[tex] 12 = \frac{\theta}{2\pi^c }\times 2\pi \times 4\\\\
\therefore 12 = \theta \times 4\\\\
\theta = \frac{12}{4}\\\\
\theta = 3 \: radians[/tex]
plz help me out it would be a prouder I don't know these tuitions pls help me I will give u 100 points and mark u brainliest 1,2,4
Answer:
1) = H
2) = 0,4
4) = S
Step-by-step explanation:
1) H is found by counting across the horizontal (axis) as x and then downwards the vertical axis for y as y is a negative we find H for y at ( y = -5 )
But when we always read left to right we start with x first at 3 across. (x= 3) as this is the same as (3,-5)
2) We find x, y at (0,4) as 0 is middle of the two axis as they cross each other and 4 goes upwards. x= 0 y =4 = (0,4)
4) S is found as it is a refection of (8,-4) across the y axis.
(x = -8) is still x but it is valued as negative in y as (x = -8)
Then (y = -4) so it stays the same height as y and represents vertical axis line which is called y axis.
And so y reflects the same height.
But in all the others y represents vertical measure generally.
Whilst x represents horizontal measure generally. they both meet at a point which represents two values generally, like cost and time, network output and population, or cupcakes sales and duration/time.
Answer: H
Step-by-step explanation:
H’s coordinate (3, -5) means that it’s to the right of the y-axis 3 units, and below the x-axis 5 units.
G would be (3, 5)
J would be (-3, -5)
K would be (5, 3)
Marc had $7.50. He bought toy car for $6.49 how much money does Marc have left
Answer:
7.50 - 6.49 = $1.01 left
Answer:
1.01
Step-by-step explanation:
7.50 - 6.49 = 1.01
The parent function f(x) = 5 ^ x has been venically compressed by a factor of one-half shifted to the three units and up two units choose the correct function
Answer:
See the explanation
Step-by-step explanation:
The given function is:
f(x) = 5ˣ
Transformation of a parent function is given by the formula:
g(x) = k · f(x + a) + b
Where
k represents vertical compression if |k| < 1 and k represents vertical stretch of |k| > 1
f(x) shifts left by a units if a>0 and f(x) shift right by a units if a<0
f(x) shift up by b units if b>0 and f(x) shifts down by b units if b<0
In the question it is given:
k = 1/2
Shifts right by 3 units ⇒ a = -3
Shift up by 2 units ⇒ b = 2
Substitute in the formula:
g(x) = (1/2) · f(x - 3) + 2
[tex]g(x) = \frac{1}{2}\cdot5^{x-3}+2[/tex]
Evaluate when a=-6, b= 5, C= -2:
a3 - b + 402
f
Select one:
stion
a. 109
O b. 205
O c. 81
O d. -205
Answer:
c 81
Step-by-step explanation:
If x ≅ y, state the reason why lines p and q are parallel. answers:
Transitive property of parallel lines
Alternate exterior angles converse theorem
Corresponding angles converse theorem
Not enough information is provided
Answer:
lines p and q are parallel because they are kinda the same in every part even the hight.
Answer:
Alternate exterior angles converse theorem.
Step-by-step explanation:
i just know :)
Please help me I need to submit this asap
Answer:
D
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is
[tex]\frac{f(b)-f(a)}{b-a}[/tex]
Here { a, b ] = [ - 1, 2 ], thus
f(b) = 4 ← from (2, 4 )
f(a) = [tex]\frac{1}{2}[/tex] ← from (- 1, [tex]\frac{1}{2}[/tex] ) , thus
average rate of change = [tex]\frac{4-\frac{1}{2} }{2-(-1)}[/tex] = [tex]\frac{\frac{7}{2} }{3}[/tex] = [tex]\frac{7}{6}[/tex] → D
Please hurry
What function is represented in the table?
Answer:
B. 3(2^x)
Step-by-step explanation:
3(2^x) is the only function that yielded the given outputs when the inputs were plugged in.
Click on the median in this set of data. 15,21,25,63,8
Answer:
the median is 21
Step-by-step explanation:
8 , 15 , 21 , 25 , 63
that is what you have to do you would have to put them in order from least to greatest so then you would see the middle number which is 21
If the relationship below are given in form (input, output), Which pairing always describes a function?
Answer:
Step-by-step explanation:
i'm not sure what the answer options are since they're not provided, but it's whichever option has a steady rate of change. (ex: money, time spent earning it; location, time spent driving; length in inches, length in meters)
k(-1) =
PLEASE HELP ASAP
Answer:
7?
Step-by-step explanation:
Answer:
k(-1) = 7
Step-by-step explanation:
the blue line represents the graph of k. The question is asking what the y-value at x=-1 is. Therefore, you just look at the blue line when x = -1, which is one block to the left of the middle. At that point, the y value is 7.
Which statement about the figures shown below is true?
PLS HEP ASP BEST GETS FOLLOW AND BRAINLIEST
In the diagram below, points A and B represent two lakes. How far apart are the lakes? 131.5 ft 456.3 ft 474.6 ft 633.9 ft
Answer:
I don't know the answer, but I just took a test and the answers ARE NOT 456.3 and ARE ALSO NOT 474.6
Step-by-step explanation:
The distance between the two lakes = 633.9 ft. So, we take the 4th option.
What is the law of cosines?By the law of cosines, a triangle with sides a, b, and c, and the angle opposite to c being γ,
c = √(a² + b² - 2.a.b.cos γ)
How do we solve the given question?To solve the question, we will use the law of cosines.
Let a = 560 ft., b = 350 ft., c = d (unknown distance).
γ = 160° - 75° = 85°.
We substitute the values in the formula to get,
d = √(560² + 350² - 2(560)(350)(cos 85°)
or, d = √(313600 + 122500 - 392000*0.0871)
or, d = √(436100 - 34165.05116)
or, d = √401934.948842
or, d = 633.983397
So, we take d = 633.9 ft., the 4th option.
∴ The distance between the two lakes = 633.9 ft.
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The line has a slope of 7/10 and a y intercept of 3/10. Find the equation of the line.
Answer:
y=7/10+3/10
Step-by-step explanation:
A sequence is defined by the recursive formula f(n+) = f(n) -2. If f(1) =18 what is f(5)?
=====================================================
Work Shown:
Plug in n = 1 to find the next term
f(n+1) = f(n) - 2
f(1+1) = f(1) - 2 ... replace every n with 1
f(2) = f(1) - 2
f(2) = 18-2 .... replace f(1) with 18
f(2) = 16
We'll use this to get the next term. Plug in n = 2
f(n+1) = f(n) - 2
f(2+1) = f(2) - 2 ... replace every n with 2
f(3) = f(2) - 2
f(3) = 16 - 2 ... replace f(2) with 16
f(3) = 14
This process keeps going until we reach f(5)
Plug in n = 3
f(n+1) = f(n) - 2
f(3+1) = f(3) - 2
f(4) = f(3) - 2
f(4) = 14-2
f(4) = 12
and finally plug in n = 4
f(n+1) = f(n) - 2
f(4+1) = f(4) - 2
f(5) = f(4) - 2
f(5) = 12 - 2
f(5) = 10
The summary is basically we subtract 2 from each term to get the next term. The sequence is 18, 16, 14, 12, 10 which is arithmetic.
ramp is 9.4m long and joins two levels, one 3.1m higher than the other find angle that ramp makes with the lower level
Answer:
The angle ramp make with the lower level is 19.25∘
Step-by-step explanation:
Using the sine function:
sin θ = H e i g h t D i f ere n c e / R a mp Length
sin θ = 3.1 / 9.4
Taking sine inverse on both sides:
θ = s i n − 1 3.1 / 9.4
θ ≈ 19.25 ∘
I hope it helped
have a great day :))
Tammy has $3,500 that she wants to invest in stock. She believes she can earn a 12% annual return. What would be the value of Tammy's investment in 10 years if she is able to achieve her goal?
Answer:
the answer to the following questions is 10870.46873
(30 points)PLEASE HELP! LOVE Y'ALL SO MUCH THX! If x=3b and y= 2/6b+4 , what is y in terms of x?
(A) 2 x+4 (B) 1 x+2 (C) 2x (D) x+2 (E) 2x+4
Answer:
y=(1/9)x+4
Step-by-step explanation:
x=3b
b=(1/3)x
y=2/6(1/3)x+4
y=(2/18)x+4
y=(1/9)x+4
Answer:
y = 1/(x+2)
Step-by-step explanation:
x=3b and y= 2/(6b+4)
Rewriting the second equation by factoring out 2
y=2/ 2(3b+2)
We know that 3b = x
y=2/ 2(x+2)
Canceling the 2 in the numerator and denominator
y = 1/(x+2)
Explain in words how to use the side lengths of a triangle to determine if the triangle is a right, acute, or obtuse triangle.
basically write the triangle in degree language like this is a acute angle because this is a 70* degree angle and talk more
A developer purchases 1628 acres of land.She splits it into equal sized plots of 22 acres each.How many plots does the developer create?
Answer:
74 plots
Step-by-step explanation:
74 plots; 1628/22=74 it says that she splits it in EQUAL sized plots of 22 EACH which means that you are trying to find how many 22 acres of plots there is. Therefore you do 1628/22.