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miskamm [114]
3 years ago
5

You may remember that the area of a triangle is A=12B⋅H, where B is the base of the triangle and H is the height.

Mathematics
2 answers:
Alexxandr [17]3 years ago
7 0

Answer:

b = 6

Step-by-step explanation:

The area of a triangle is

A = 1/2 bh

9 = 1/2 *(2h) * h

9 = h^2

Take the square root of each side

3 =h

The base is 2h

b = 2(3)

b = 6

notsponge [240]3 years ago
3 0

Answer:

6

Step-by-step explanation:

Assuming that the base is b and the height is h:

\dfrac{bh}{2}=9 \\\\b=2h

Substitute:

\dfrac{2h(h)}{2}=9 \\\\h^2=9 \\\\h=3 \\\\b=2h=6

Hope this helps!

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Which of the following is the method used to determine whether or not a proportion is true?
sdas [7]

Answer:

Cross multiplication is the method  used to determine whether or not a proportion is true.

Explanation:

If you know one ratio in a proportion, you can use that information to find values in the other equivalent ratio.

Cross multiplication is the method used to determine whether or not a proportion is TRUE.

For example, if a bowl of fruit contains 10 oranges and 8 lemons, then the ratio of oranges to lemons is 10  is to 8 (that is, 10 : 8 ), which is equivalent to the ratio 5:4).

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3 years ago
What is 5 over 8 in decimal form
Sonja [21]
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4 0
2 years ago
Isabel ran for president of the chess club, and she received 12 votes. There were 15 members in the club. What percentage of the
hammer [34]

Answer:

80%

explanation:

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4 0
3 years ago
I have 5 digits. My 9 is worth 9 ∗ 10,000. My 2 is worth 2 thousand. One of my 7s is worth 70. The other is worth 10 times as mu
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6 0
3 years ago
Can you help me with this!!!!!!!!!
alexira [117]

a. The first variable is x and the second variable is y.

b. The equations are x+y=12 and x-y=8.

Step-by-step explanation:

Step 1:

The first step is to define the variables. The variables can be any two symbols, letters, characters, etc.

Here let the first variable be x and the let the second variable be y.

So the variables are defined as x and y.

Step 2:

The sum of the given variables is 12.

The first variable + the second variable = 12,

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Step 3:

If we add both the equations we get, 2x =16, x= 8 and y=4.

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4 0
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