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3 years ago

2 Solve x --> 3 5 X>

Mathematics

1 answer:

aivan3 [116]3 years ago

7 0

The answer is cool boy chicken head

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An electric car makes 3,000 revolutions per minute, How many degrees does it rotate in a second?

ruslelena [56]

Answer:

It rotates 50 times a second

Step-by-step explanation:

There is 60 seconds in a minute,so all you have to do is Divide 30,000 by 60 and you get 50!

3 0

3 years ago

a trapezoid with base measure of 23 km and 29km an area of 390km . find the height of the trapezoid.

cupoosta [38]

Hello!

To find the area of a trapezoid you use the equation

$A = \frac{a+b}{2} h$

Put in the values you know

$390 = \frac{23+29}{2} h$

Add

$390 = \frac{52}{2} h$

Divide

$390 = 26 * h$

Divide both sides by 26

15 = h

The answer is 15km

Hope this helps!

3 0

4 years ago

Read 2 more answers

In the right triangle shown, DF=EF=3DF=EF=3D, F, equals, E, F, equals, 3.

jarptica [38.1K]

Answer:

<h2>The side DE is 4.2 units long, approximately.</h2>

Step-by-step explanation:

In the given triangle, side DE is the hypothenuse. So, we can use Pythagorean's Theorem, where both legs are 3 units long.

$DE^{2}=DF^{2}+EF^{2}\\ DE^{2}=3^{2}+3^{2}\\DE^{2}=9+9\\DE=\sqrt{18} \approx 4.2$

Therefore, the side DE is 4.2 units long, approximately.

7 0

3 years ago

What mathematics concepts or principles did you apply to come up with the solution of each equation? explain how you applied the

AlexFokin [52]

You need to look at the question again, and notice the words "... did you ...".
From those words, it's clear that the question comes AFTER you have solved
several equations, and now, this question is asking you how you solved them.

The only way for YOU to answer this question is to solve the equations first.

And if you want someone ELSE to tell the math concepts and principles that
are used to solve them, then you have to show him what the equations are.

8 0

4 years ago

What does n eaqual<br> 9 - 5n + 1 = 15<br> n=?

Rama09 [41]

Answer:

n = -1

Step-by-step explanation:

9 - 5n + 1 = 15

-5n = 15 - 10

-5n / -5 = 5/ - 5

n = -1

hope this helps!!!

7 0

3 years ago