3/4 of a sphere with a radius of 13

Answers

Answer 1

Answer: first fnd SA then times 3/4

SA of sphere=4pir^2
r=13
SA=4pi13^2
SA=4pi169
SA=676pi

times 3/4
SA=507pi

answer is 507pi squaer units

(if they want to evaluate or aprox, use 3.14 for pi and multiply 507 and 3.14)

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What is the smallest division of a cm ruler and a mm ruler? Thank you.

Answers

around 0.1 cm ( or, 1 mm), which is the distance between the smallest divisions.
hope it helps

The smallest visible division is a milimeter.

If xy is rational, must x and y each be rational?

Answers

Your answer is is simply,no x and y could have a common irrational factor.

For a cone, if the radius was quadrupled and the slant height was reduced to 1/6 of its original size what would be the formula to find the modified surface area.

Answers

Let $r$ be the radius of the cone's base and $\ell$ the slant height.

The surface area of a cone is

$A=\pi r^2+\pi r\ell$

If the radius is quadrupled ( $r\to4r$ ) and the slant height scaled by a factor of $\frac16$ , then the new area is

$A=\pi(4r)^2+\pi (4r)\left(\frac\ell6\right)$
$A=16\pi r^2+\frac23\pi r\ell$

Which expression is equivalent to 10 - 810−810, minus, 8?

Answers

Answer:

10+(-8)

Step-by-step explanation:

Final answer:

The expression 10 - 8 - 810 is equivalent to -808.

Explanation:

The expression 10 - 8 - 810 is equivalent to subtracting 8 from 10 and then subtracting 810. The order of operations states that subtraction should be done from left to right, so we first subtract 8 from 10 to get 2. Then we subtract 810 from 2 to get -808.

Learn more about Mathematical Expressions here:

brainly.com/question/34902364

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Find the distance between the points (4, 4) and (-3, 5)

Answers

Answer: 7.07

Step-by-step explanation:

To find the distance, you need to use the distance formula.

$d=√((x_2-x_1)^2+(y_2-y_1)^2)$

$d=√((-3-4)^2+(5-4)^2)$ [parenthesis]

$d=√((-7)^2+(1)^2)$ [exponent]

$d=√(49+1)$ [add]

$d=√(50)$

$d=7.07$

Now, we know the distance is 7.07.

The graph shows the value of an investment after x years. the initial amount of the investment is $___ , the investment grows at the rate of ___% each year, and the value of the investment after 10 years is $___
NEED HELP!!! I WILL GIVE POINTS IF HELP IS GIVEN!!

Answers

Answer:

$500
6%
$895.42

Step-by-step explanation:

The graph shows the value of an investment after x years.

The initial amount of the investment is $500, the investment grows at the rate of 6% each year, and the value of the investment after 10 years is $895.42

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Find the value of x that makes m parallel to n