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3 years ago

Will give brianlist

Mathematics

1 answer:

MrRa [10]3 years ago

4 0

A. 120 millimeters.

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Please help me I really really need help

postnew [5]

Answer:

$B) \sqrt{2}$ ÷ $2\sqrt{5}$

Step-by-step explanation:

$A$ → $2\sqrt{5}$ ÷ $\sqrt{5}$

$= \frac{2\sqrt{5} }{\sqrt{5} }$

→ 2 is a rational number

$B)$ → $\sqrt{2}$ ÷ $2\sqrt{5}$

$=\frac{\sqrt{2} }{2\sqrt{5} }$

$=\frac{\sqrt{2} }{\sqrt{2}*\sqrt{2}*\sqrt{5} }$

$= \frac{1}{\sqrt{10} }$

↑ is irrational number

$C)$ $\frac{\pi }{2}$ ÷ $\pi$

$= \frac{\pi }{2} *\frac{1}{\pi }$

$=\frac{1}{2}$

↑ is a rational number

$D)$ $5\pi$ ÷ $\pi$

$= 5$

↑ is a rational number

So, Option B is your answer

$-----------------$

hope it helps..

have a great day!!!

5 0

3 years ago

Leila purchased a pre paid phone card for $25. Long distance calls cost 22 cents a minute using this card. Leila used her card o

slamgirl [31]

Answer:

Leila's call lasted for 25 minutes.

Step-by-step explanation:

inital amount - (0.22 * minutes on the phone) = final amount

25 - 0.22x = 19.5

Solve for x

Subtract 25 from both sides

-0.22x = -5.5

Divide both sides by -0.22

x = 25

6 0

4 years ago

Fred's boat rental charges a rental fee of $30 plus $5 per hour. Joe's boat rental charges a flat rate of $20 an hour. Set the s

zmey [24]

30 + 5h = 20h
30 = 20h - 5h
30 = 15h
30/15 = h
2 = h

at 2 hrs, they both charge the same rate...
30 + 5(2) = 30 + 10 = 40
20h = 20(2) = 40
so at 2 hrs, they both charge $ 40

8 0

3 years ago

Which of these is an example of a continuous random variable?

Sever21 [200]

Answer:

D Length of F I S H

Step-by-step explanation:

I chose the bowling one and got it wrong, but you can have the right answer

7 0

3 years ago

Read 2 more answers

Tom sold half of his comic books and then bought 8 more he now has 14. how many did he begin whith

Zinaida [17]

Answer:

He began with 12.

Step-by-step explanation:

14-8=6

You need to multiply 6 because he sold half of his comic books at the beginning.

6*2=12

4 0

3 years ago

Read 2 more answers