Which is the best definition of the radius of a circle? A. The distance around the outside of the circle
B. The distance across the middle of the circle
C. The Point at the center of the circle
D. The distance from the center to any point on the circle

Answers

Answer 1
Answer:

The best definition of the radius of a circle is option D: "The distance from the center to any point on the circle."

The radius is a fundamental geometric concept that is integral to understanding and describing circles. It is a straight line segment that extends from the center of the circle to its outer edge.

This single measurement defines the size of the circle and is consistent from the center to any point on the circumference. It is crucial in various mathematical and geometric calculations, including calculating the circle's area, circumference, and relationships with other elements in geometry. Option D succinctly encapsulates the essence of the radius and its geometric significance in a clear and concise manner.

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Answer 2
Answer:

D since the radius is the distance between the center and any edge of the circle

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The quantities x and y are proportional. If x is 3 and y is 9, find the constant of proportionality (r) in the equation y = rx. A) 1 B) 2 C) 3 D) 4

Answers

Answer:

C

Step-by-step explanation:

given that x and y are proportional then the equation relating them is

y = rx ← r is the constant of proportionality

to find r, substitute x = 3 and y = 9 into the equation

9 = 3r ( divide both sides by 3 )

3 = r

the constant of proportionality is r = 3

All of the following ordered pairs satisfy the function rule y = -2 x - 1 except _____.(-2, 3) (0, -1) (2, -5) (-1, -3)

Answers

You need to sub your X and Y values in. Take (-1,-3) for example: if you sub in these values, your equation y=-2x -1 will become (-3)=-2(-1) - 1. However, if you simplify it out, you'll realise that it doesn't make sense as you'll get -3=-1 which is clearly untrue, thus (-1,-3) is the only pair that doesn't satisfy your function. 

What decimal is equal to six tenths

Answers

6 tenths
it is 6/10 as a fraction which is equal to 0.6 as a decimal

Help me guy and gals

Answers

Answer:

7x + 17 + 8x +2

Step-by-step explanation:

I don't know this operation

Answers

the answer is 96. all u do is multiply 400 and 24%

24% = 0.24 

400 x 0.24 = 96.
 

After 6 years, Federico earned $1485 in simple interest from a cd into which he initially deposited $ 9000. What was the annual interest rate of the cd?A. 2.75% B.5.5% C. 8.25 D.11%

Answers

The formula for simple interest is:
I=Prt
I=interest earned
P= principal
r= rate in decimal form
t= time in years
I=Prt
1485=9000(r)(6)
1485=54000r
Divide by 54000:
0.0275=r
Change to percent form:
r=2.75%

Answer:

2.75% is the answer for apex

Step-by-step explanation: