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3 years ago

Which statement about the radius of a sphere is true?

2 answers:

8 0

All options here, except for the third, make little or no sense. But the third, stating that "The radius is a line segment from the center point to the surface of the sphere" is perfect. Note that in 2 dimensional geometry it'd be "The radius is a line segment from the center point to the rim of the circle."

katrin [286]3 years ago

7 0

<h2>Answer:</h2>

The statement that is true about the radius of a sphere is:

The radius is a line segment from the center point to the surface of the sphere.

<h2>Step-by-step explanation:</h2>

We know that the radius of a circle/sphere is a line segment that joins the center of circle/sphere to any point on the circumference/ surface of the circle/sphere.

Also, in a circle the radius is the length such that each point on the circumference are equidistant from the center of the circle.

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If triangle DEF is classified as equilateral, which statement must be true?

patriot [66]

Answer:

all three sides are congruent.

Step-by-step explanation:

it is equiangular.

sides are equal.

angles are equal.

all three sides are congruent.

6 0

3 years ago

What is the perimeter of this red

Vilka [71]

96

multiply the side length by the number of sides

4 0

2 years ago

How to graph and solve linear functions <br><br> how to solve g(x)=-3x-1

Ksivusya [100]

Answer:

I will explain the equation

in a graph, the slope will look like this

The Y Intercept is -1, and the slope is -3, as in it will go downward

For every 1x, the slope will go downward by 3.

4 0

3 years ago

The population of a town grows at a rate proportional to the population present at time t. the initial population of 500 increas

vaieri [72.5K]

This is a case of exponential growth. The appropriate equation, with the given data inserted, is P(t) = 500 ( 1+0.15)^50

or = 500 (1.15)^50

Evaluate this on your calculator.

5 0

3 years ago

Pixel goes shopping with one hundred dollars and ends up buying three different types of items: A, B, and C. The unit price of A

mixas84 [53]

Answer:

A - 16, B - 79, C - 5

Step-by-step explanation:

<u>Given</u>

A costs 5$
B costs $0.25
C costs $0.05
A + B + C = 100
5A + 0.25B + 0.05C = 100 ⇒ 100A + 5B + C = 2000

<u>Subtract the first equation from the second:</u>

99A + 4B = 1900

<u>We have a restriction in numbers:</u>

0 < A, B, C < 100

<u>Since 4B can be max 400, we get 99A > 1500 and 99A < 1900 so:</u>

A > 1500/99 > 15

and

A < 1900/99 < 19

A can be 16 or 18 as it should be even number to get B the whole number.

99*16 + 4B = 1900
4B = 1900 - 1584
4B = 316
B = 316/4 = 79

99*18 + 4B = 1900
4B = 1900 - 1782
4B = 118
B = 118/4 = 29.5, discarded as decimal

A = 16, B = 79 and C = 100 - (16 + 79) = 5

<u>Let's proof the numbers:</u>

16*5 + 79*0.25 + 5*0.05 = 100, confirmed

5 0

2 years ago