2 years ago

The radius of this ball is 24 inches. Which equation gives the ball's surface area, in square inches?

1 answer:

3 0

$\bf \textit{surface area of a sphere}\\\\
SA=4\pi r^2~~
\begin{cases}
r=radius\\
-----\\
r=24
\end{cases}\implies SA=4\pi (24)^2$

You might be interested in

A given line has the equation 10x+2y=-2.

Iteru [2.4K]

The equation of a line of the slope-intersection form is given by:

$y = mx + b$

Where:

m: It's the slope

b: It is the cut-off point with the y axis

If two lines are parallel then their slopes are equal.

We have the following line:

$10x + 2y = -2\\2y = -10x-2\\y = -5x-1$

Thus, the slope of the line is -5.

Therefore a parallel line is of the form:

$y = -5x + b$

We replace the point $(0,12)$

$12 = -5 (0) + b\\12 = b$

Finally, the equation is of the form:

$y = -5x + 12$

Answer:

$5x + y = 12$

8 0

3 years ago

Help with this math question please!!

tester [92]

They are parallel because they have the same slope

6 0

2 years ago

Read 2 more answers

At the beginning of mathematics class, Mrs. Reno gives a warm-up problem. She says, "I am think of a number such that 6 less tha

Eduardwww [97]

7x - 6 = 85
7x = 85 + 6
7x = 91
x = 91/7
x = 13......Mrs. Reno is thinking of 13...thats just creepy

5 0

2 years ago

Can someone help with this?

MAXImum [283]

I belive it is the second option!

8 0

2 years ago

Read 2 more answers

The difference of a number mand thirty is ten. How do you write this as a equation?

777dan777 [17]

Answer: x - 30 = 10

Step-by-step explanation:

x - 30 = 10

x = 30 + 10

x= 40

5 0

2 years ago