3 years ago

What does a - 45 degree angle look like?

Mathematics

1 answer:

Sauron [17]3 years ago

4 0

Here's a picture I found on google of what a 45 degree angle looks like.

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When constructing a line parallel to a given line, you will be

siniylev [52]

I believe it would be A. copying a segment, because with a parallel line the lines will not be intersecting, and copying the segment would be the only answer to give you lines that don't intersect.

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3 years ago

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The radius of a car wheel is 14 inches. how many revolutions per minute is the wheel making when the car is traveling at 60 mph.

Dovator [93]

Answer:

$721\ \frac{rev}{min}$

Step-by-step explanation:

step 1

Find the circumference of the wheel

The circumference of a circle is equal to

$C=2\pi r$

we have

$r=14\ in$

substitute

$C=2\pi(14)$

$C=28\pi\ in$

assume

$\pi=3.14$

$C=28(3.14)=87.92\ in$

step 2

$1\ mile=63,360\ inches$

$1\ hour=60\ minutes$

we have that

The speed of the car is 60 miles/hour

Convert the speed to inches/minute

$60\ \frac{mi}{h}=60(\frac{63,360}{60})=63,360\ \frac{in}{min}$

step 3

Remember that

The circumference of the wheel subtends one revolution

$1\ rev=87.92\ in$

Convert the speed to rev/min

$63,360\ \frac{in}{min}=\frac{63,360}{87.92}=721\ \frac{rev}{min}$

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3 years ago

carla checked 8 books out of the library this was 3 more than lee checked out how many books did lee check out of the library

Marrrta [24]

Lee +3 = carla
x + 3 = 8
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Lee checked out 5 books.

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(-8, 4) hope that helps

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