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Karolina [17]
2 years ago
5

What happens to the volume of a sphere when its diameter is doubled?

Mathematics
2 answers:
timama [110]2 years ago
6 0
Consider this solution:
1) formula of volume is   V= \frac{4}{3} \pi r^3, where \ r - radius
2) if new_r=2r, then the formula is   new_V= \frac{4}{3}*(2r)^3= \frac{4}{3} \pi *8r^3=8*( \frac{4}{3} \pi r^3)
3) new_V/V=8:1
The volume increases by 8 times.
Taya2010 [7]2 years ago
3 0

Answer:

Its volume is 8 times greater.

Step-by-step explanation:

I haveTTM for the users

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Which is an example of a linear equation?
kobusy [5.1K]

Answer:

Step-by-step explanation:

A. (x, y)  is not an equation.

B. 2 + 7 = 9  Not a linear equation, as there is no variable.

C. 3x + 5 = 20  This is a linear equation.

D. y = 2x + 1  This is a linear equation.

5 0
3 years ago
The sum of two numbers is 70. the larger number is 4 more than twice the smaller number. what is the smaller number?
iVinArrow [24]
Smaller number=x
larger number=2x+4

x+2x+4=70
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7 0
2 years ago
Question 2 (Essay Worth 10 points)
Soloha48 [4]

Answer:

Account A: Decreasing at 8 % per year

Account B: Decreasing at 10.00 % per year

Account B shows the greater percentage change

Step-by-step explanation:

Part A: Percent change from exponential formula

f(x) = 9628(0.92)ˣ

The general formula for an exponential function is

y = ab^x, where

b = the base of the exponential function.

if b < 1, we have an exponential decay function.

ƒ(x) decreases as x increases.

Account A is decreasing each year.

We can rewrite the formula for an exponential decay function as:

y = a(1 – b)ˣ, where

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If we compare the two formulas, we find

0.92 = 1 - b

b = 1 - 0.92 = 0.08 = 8 %

The account is decreasing at an annual rate of 8 %.The account is decreasing at an annual rate of 10.00 %.

Account B recorded a greater percentage change in the amount of money over the previous year.

5 0
1 year ago
At a football game three out of the first five student that arrived were wearing a jacket based on his information if 300 studen
WARRIOR [948]

Answer:

120 students students could be expected to not be wearing a jacket

Step-by-step explanation:

Based on this, we can work with the assumption that 3/5 of the students that entered the stadium were wearing jackets.

Given that the total population of students that attended the game is 300

This means that 3/5 of the 300 = 180 students.

180 students were estimated to be wearing jackets.

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2 years ago
1 1/2 x -2= <br> PROCESS !!!!
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11/2x=2
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x=4/11
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2 years ago
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