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8090 [49]
3 years ago
13

PLEASE HELP ME~! NEED THIS ASAP

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
8 0

Answer:

B

Step-by-step explanation:

since y and x vary directly the equation relating them is

y = kx ← k is the constant of variation

to find k use any ordered pair from the list given

using x = 4 when y = - 2, then

k = \frac{y}{x} = \frac{-2}{4} = - 0.5 → B


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Answer:

Y=-1

Step-by-step explanation:

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Liang is ordering new tires for his car. The tires he has have a circumference of 28π inches and a wheel rim with a circumferenc
skelet666 [1.2K]

The radius of tire is larger than radius of wheel by 5 inch

Step-by-step explanation:

We know that circumference of the circle is 2πr where “r” is the radius of the circle

Circumference refers to the dimension of the periphery of the circle. Since tires are put on the periphery of the wheel hence, we considered the circumferential aspect of the wheel.

Given-

Circumference of tires= 28π inches

2πr= 28π cancelling the common term “π” both sides

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2πr= 18π cancelling the common term “π” both sides

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Hence, the difference between the radius of tires and the radius of the wheels is 5 inches

 

4 0
3 years ago
Answer pls no link I need help
Misha Larkins [42]

Answer:

20

Step-by-step explanation:

the whole angle needs to be 180 degrees 180-100=80 80-20=60 20×3=60 60+20=80 80+100=180

8 0
3 years ago
HELP ME PLS!!! Find the y-intercept of the rational function.
amid [387]

Answer:

-2,0

Step-by-step explanation:

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vitfil [10]

Answer:

142 degrees

Step-by-step explanation:

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33 + 20 + 165 + X =360

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Hence the size of angle X is 142 degrees

5 0
3 years ago
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