What is the equation of the line ?

A race car is driven around a circular track at a constant speed of 180mph. If the diameter is 1/2 mile, what is the angular spe

Bogdan [553]

If the diameter is 1/2 mile, that is 0.5 mile, then the radius is 0.25 -half of it!

the angular speed is theta/time, which means

w=theta/time

but another formula for it is Velocity*radians

w=velocity*radians

velocity is 180 mph and radians are (revolution/2 $\pi$ radius), that is:

w=180*(1/2 $\pi$ *0.25)
and if we calculate this, we have: w=114.59, which is the correct answer!

4 0

3 years ago

How do you do proofs

AnnyKZ [126]

Answer:

you can watch YT videos or search online. search: How to solve proofs. Also search up proof theorems. This will help you even more towards solving more complex proof problems.

Step-by-step explanation:

8 0

2 years ago

The amplitude of y = -2 sin 3x is

Rzqust [24]

Answer:2

Step-by-step explanation:

5 0

2 years ago

The two lines y=2/5x+9 and y= -2/5x-9 are: <br> a) parallel <br> b) perpendicular <br> c)neither

irakobra [83]

Answer:

neither

Step-by-step explanation:

parallel lines have the same slope and different y-intercept

perpendicular lines have the reciprocal as slopes( 2/5 and 5/2)

as these slopes have neither the answer in NEITHER

8 0

2 years ago

The relation of 10 squares to 100 squares can be expressed in many ways. Which of the following is not a way to express the rela

irakobra [83]

Answer:

As there are no options given in the question, but the options in the complete question are;

a) 2/10b) 20%c) 0.02d) 0.2

So, from the given options "c" is not a way to express this.

we can write 20/100 as 2/10 so option a is a way to express given relationship. and if we look at option b, it is also a way to express 20 from 100 is 20%. And if we divide, we get 20/100 = 2/10 = 0.2, so d is also a way to express given relationship. Thus, c is the answer.

Step-by-step explanation:As there are no options given in the question, but the options in the complete question are;

a) 2/10b) 20%c) 0.02d) 0.2

So, from the given options "c" is not a way to express this.

we can write 20/100 as 2/10 so option a is a way to express given relationship. and if we look at option b, it is also a way to express 20 from 100 is 20%. And if we divide, we get 20/100 = 2/10 = 0.2, so d is also a way to express given relationship. Thus, c is the answer.

3 0

1 year ago

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