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ivann1987 [24]
3 years ago
7

A triangle with a base of 9 meters has and altitude of 9meters. Which would give the area of the triangle

Mathematics
1 answer:
sertanlavr [38]3 years ago
7 0

Answer:

it is 36

Step-by-step explanation:

you would add the 9 and 9 then you would multiply that by 2 to get your area

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blagie [28]

Answer:

-5x^2-26

Step-by-step explanation:

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3 0
3 years ago
One half a number decreased by 3 is 21 what is the equation for this statement
Liono4ka [1.6K]

Question:

What is the equation for the following statement,"One-half of a number decreased by 3 is 21.

Answer:

<em>half the number = x/2 </em>

<em>decreased by 3 </em>

<em>(x/2) -3 =21</em>

<em>=48</em>

5 0
3 years ago
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Rewrite the equation by completing the square 4x^2-4x+1=0
oee [108]

Answer:

4(x - \frac{1}{2} )² = 0

Step-by-step explanation:

Given

4x² - 4x + 1 = 0

To complete the square the coefficient of the x² term must be 1

Factor out 4 from 4x² - 4x

= 4(x² - x) + 1 = 0

add/subtract ( half the coefficient of the x- term )² to x² - x

4(x² + 2(- \frac{1}{2} )x + \frac{1}{4} - \frac{1}{4} ) + 1 = 0

4(x - \frac{1}{2} )² - 1 + 1 = 0

4(x - \frac{1}{2} )² = 0

8 0
3 years ago
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An isosceles triangle has a perimeter of 36 inches. Its base is 2
astra-53 [7]

The lengths of the sides of the triangle are 8, 8, 20

Explanation:

Given that the perimeter of an isosceles triangle is 36 inches.

The base of the triangle is 2\frac{1}{2} times longer than each of its legs.

We need to determine the lengths of the sides of the triangle.

<u>Lengths of the sides:</u>

Let x denote the lengths of the sides of the triangle.

The base of the triangle is given by

2\frac{1}{2}x=\frac{5}{2}x=2.5x

Perimeter of the isosceles triangle = Sum of the three sides of the triangle.

Thus, we have,

36=x+x+2.5x

36=4.5x

8=x

Thus, the length of the sides of the isosceles triangle is 8 inches.

Base of the triangle = 2.5(8)=20 \ inches

Hence, the three sides of the isosceles triangle are 8, 8, 20

3 0
3 years ago
2 times the sum of a number and 4 is no more than three times the sum of a number and 7 decreased by 4
anygoal [31]
2(x+4) \geq 3((x+7)-4) \\ 2x+8 \geq 3(x+7)-12 \\ 2x+8 \geq 3x+21-12 \\ 2x+8 \geq 3x+9 \\ 2x \geq 3x+1 \\ -x \geq 1 \\ x \leq -1
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3 years ago
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