3 years ago

Answer the equations: 1. 4x+16 2. 8 + 4x+8 3. x+8+x 4. 4+2x+4 5. x+1+2x+8

Mathematics

2 answers:

Aleks04 [339]3 years ago

5 0

So I checked this guys work seems pretty accurate

andrew-mc [135]3 years ago

3 0

Answer:

Answers below

Step-by-step explanation:

1) 4 (x+4)

2) 4x + 16

3) 2x+8

4) 2x+8

5) 3x+9

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kenny6666 [7]

Answer:

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Step-by-step explanation:

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3 years ago

The length of the base of a triangle is twice it’s height. If the area of the triangle is 441 square kilometers, find the height

Sonja [21]

Answer:

21 kilometers

Step-by-step explanation:

Let the height be $x$ . Then, the length of the base is $2x$ . The formula for the area is of the triangle is given by base*height/2. Therefore, the area of the triangle is equal to $\frac{x \cdot 2x}{2} = x^2$ , which is in turn equal to 441. Since $x$ must be positive, then $21^2=441$ , meaning that the height is $21$ kilometers.