3 years ago

20 POINTS!!! Please Help

Mathematics

1 answer:

Yuri [45]3 years ago

7 0

Answer

I'll help with part a.

Convert revolutions per minute to revolutions per second. Next, convert from revolutions per second to radians per second. Finally, plug the numbers into the formula for angular velocity (this involves the diameter/radius value)

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The sandbox at a playground is 2 feet tall.The area of the base of the sandbox mis 80 square feet.How much sand does it take to

s2008m [1.1K]

It will take 160 sand to fill it u

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3 years ago

WILL MARK BRAINLY IF CORRECT!

bogdanovich [222]

Answer:

Step-by-step explanation:

The given equation is

$12( - \frac{1}{6}x - \frac{2}{3}y = - 5)$

$5( \frac{2}{5} x + \frac{1}{5} y = - 9)$

When we multiply we obtain the equations:

$- 2x - 8y = - 60$

$2x + y = - 45$

We add both equations to obtain:

$- 7y = - 105$

Divide both sides by -7 to get:

$y = \frac{105}{7} = 15$

6 0

4 years ago

Can anyone solve this

Maksim231197 [3]

What is that cause its not math

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=8%20%5Ctimes%7B10%7D%5E%7B5%7D%20is%20%5C%3A%20how%20%5C%3A%20many%20%5C%3A%20times%20%5C%3A%2

Studentka2010 [4]

C because you are taking 8 and multiplying it

8 0

3 years ago

Y=2x2-4x-5 if x=-2 what is y

kkurt [141]

Answer:

Step-by-step explanation:

y = 2x^2 - 4x - 5.......if x = -2

so sub in -2 for x

y = 2(-2^2) - 4(-2) - 5

= 2(4) + 8 - 5

= 8 + 8 - 5

= 11 <==== y is 11

4 0

3 years ago