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Svetradugi [14.3K]
3 years ago
9

Can some one help me in this problem

Mathematics
1 answer:
strojnjashka [21]3 years ago
8 0
I believe x=116 and z=26. 4z-40=64
4z=104
z=26
180-64=116
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The radius of a sphere is multiplied by 1/7. What effect does this have on the volume of the sphere?
Cloud [144]

Answer:

The new volume is 1/343 of the old volume or the ratio of the new volume to the old volume is 1 to 343

Step-by-step explanation:

In this question, we are asked to state the effect of multiplying the radius of a sphere by 1/7 on the volume.

Mathematically, the volume of a sphere V can be calculated using the formula

V = 4/3 * π * r^3

Now multiplying the radius by 1/7, the new radius will be r/7

Thus the new volume here will be

V2 = 4/3 * π * (r/7)^3

V2 = 4/3 * π * (r^3)/343

Thus we can conclude that the value of the volume will be decreased by a factor of 343

Meaning the ratio of the old volume to the new volume will be 1 to 343

3 0
3 years ago
Read 2 more answers
If s pool holds 22,000 gallon how long will it take to fill a pool at a rate of 400 gallon per minute round to the nearest tenth
worty [1.4K]
T=volume÷rate
this will cancel out gal and leave min

22000 gal ÷ 400 gal/min

55 min
3 0
3 years ago
Find the slope of the line that passes through the points A(0,2) and B(4,-1)
sergiy2304 [10]
The slope is -3/4 for your question
4 0
3 years ago
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Brainliest for correct answer !! :)<br> f (x) = 3x - 5 g (x) =2^x Find f^-1 (x)
katovenus [111]

Answer:

f^-1(x) = (x +5)/3

also = 1/3 x + 5/3

Step-by-step explanation:

Just to be clear, the ^-1 has nothing to do with negative exponents. It just unfortunately looks the same as a negative exponent.

Anyway, there's three basic steps. First write y instead of f(x). Then switch the x and y. Then solve for y.

f(x) = 3x - 5

write y in place of f(x).

y = 3x - 5

SWITCH x and y.

x = 3y - 5

SOLVE for y.

-3y + x = -5

-3y = -x - 5

y = (-x - 5)/-3

y = (x + 5)/3

OR

y = (1/3)x + 5/3

f^-1(x) = 1/3 x + 5/3

3 0
2 years ago
Solve the problem.
jeka94
So we know that the answer is 5.1 because the 77.0 you could add and get 22
6 0
2 years ago
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