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Vsevolod [243]
3 years ago
12

The circumference of a circle varies directly as the diameter. A circle has a diameter of 40 feet and a circumference of 125.6 f

eet. What is the circumference of a circle with a diameter of 10 feet? A. 31.4 feet B. 5 feet C. 15.7 feet D. 41.4 feet
Mathematics
1 answer:
kirill115 [55]3 years ago
3 0

Answer:

A. 31.4 feet

Step-by-step explanation:

The formula for circumference is given by

C = pi d

Since we know the diameter is 10 ft

C = pi * 10

pi  is approximately  3.14

C = 3.14* 10

C = 31.4 ft

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nika2105 [10]

Answer:

use 2 defined points.

Lets use: (-3,0) and (0,3)

The equation is written as y = mx+b, where m is the slope and  is the y-intercept

Slope - change in y / change in x:

Slope = (3 -0) /(0- -3) = 3/3  = 1

b is the y-intercept which is the y value when x is o, which is one of the points (0,3) so b = 3

The equation becomes y = x +3

5 0
2 years ago
Which expression is equivalent to (c-2d) times (3c-2d)?
timama [110]

Answer:

B

Step-by-step explanation:

(c - 2d) (3c - 2d) =  c*(3c -2d) - 2d(3c - 2d)

6 0
3 years ago
What is the equation of the following line? (0,0) (6,2)
leva [86]

If you want it to be a slope intercept form, the first you have to find slope.

y2-y1/x2-x1

2-0/6-0

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2=1/3(6)+b

2=2+b

0=b

ANSWER: y=1/3x+0

Hope this helps and is correct :)

8 0
3 years ago
A car’s original price was $26,500. Mr. Thomas paid $21,730. What percent discount did Mr. Thomas receive on the car?
shutvik [7]
Thomas got 4,770 dollars off or if you divide it well be 0.82

8 0
3 years ago
Two different lines lie in the same plane.
nikitadnepr [17]

Answer:

Two lines, both in the same plane, that never intersect are called parallel lines. Parallel lines remain the same distance apart at all times. The symbol // is used to denote parallel lines.

how to prove that two lines are equal: If two lines are cut by a transversal and the alternate exterior angles are equal, then the two lines are parallel. Angles can be equal or congruent; you can replace the word "equal" in both theorems with "congruent" without affecting the theorem. So if ∠B and ∠L are equal (or congruent), the lines are parallel.                                 therefore the answer is E. The two lines are everywhere equidistant.

8 0
2 years ago
Read 2 more answers
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