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svlad2 [7]
3 years ago
15

I need to know the answer to 3a

Mathematics
1 answer:
In-s [12.5K]3 years ago
6 0
6.

To find this, follow these steps:

a = 1/2bh

15 = 1/2 x 5 x h

First, multiply the left side of the equal sign by 2 to get rid of the 1/2.

After you do this, you should have this:

30 = 5h

Now, divide both sides by 5 to find your final answer for h which is 6.

Hope this helps!
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Ricardo has 32 books to put on 4 shelves he puts the same number of books on each self how many books does Ricardo put on each s
frozen [14]

Answer: 8

Step-by-step explanation:

You divide 32 by 4 and get eight

8 0
3 years ago
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Use the X intercept method to find all real solutions of the equation x^3-10x^2+17x+28=0
irakobra [83]

Answer:

They are -1, 4 and 7.

Step-by-step explanation:

x^3 - 10x^2 + 17x + 28 = 0

Observation of this equation shows that there is an x -intercept at x = -1 because

-1^3 - 10^(-1)^2 - 17(1) + 28 =   -28 + 28

= 0.

So x + 1 must be a factor so we can do the division:

x + 1 ) x^3 - 10x^2 + 17x + 28 ( x^2 - 11x + 28

          x^3 + x^2

                 -11x^2 + 17x

                 -11x^2 - 11x

                               28x^2 + 28

x^2 - 11x + 28 = ( x - 4)(x - 7)

x = 4, 7.

6 0
4 years ago
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Evaluate 4g – 12 when g = 5.
Alenkinab [10]

Answer:

4(5)-12

20-12

8

you have to substitute 5 in place of g and then solve

4 0
3 years ago
Maria skates 40 feet due south in a skating rink. Then she skates 60 feet due east. Maria then skates diagonally across the ring
Viktor [21]

Answer:

172 ft

Step-by-step explanation:

Due south and due east form a 90-degree angle.

Her path is a right triangle. The 60 ft and 40 ft distances are the legs of the right triangle. We can use the Pythagorean theorem to find the hypotenuse. Then we add the lengths of the three sides to find the total distance she traveled which is the perimeter of the right triangle.

a^2 + b^2 = c^2

(40 ft)^2 + (60 ft)^2 = c^2

1600 ft^2 + 3600 ft^2 = c^2

c^2 = 5200 ft^2

c = 72 ft

perimeter = a + b + c = 40 ft + 60 ft + 72 ft = 172 ft

3 0
3 years ago
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PLEASE HELP!!!!!!!!!!!
Shkiper50 [21]
Hello!

7/11 = 0/63636363...

The answer is B) 7/11

Hope this helps!
6 0
3 years ago
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