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Tamiku [17]
3 years ago
7

Simplify 7x + (x – 4)(x + 5) – 5x.

Mathematics
2 answers:
Llana [10]3 years ago
6 0
7x+(x-4)(X+5)-5x
7x+(X*2+ 5x-4x-20)-5x
7x+(X*2+ x-20)-5x
X*2+3x-20
Rom4ik [11]3 years ago
4 0

Answer:

x^2 + 3x – 20

Step-by-step explanation:

I just did the assignment

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A homeowner has two rectangular structures in her backyard. The dimensions of the hot tub are 6 feet by 8 feet. The dimensions o
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Answer:

289\ ft^{2}

Step-by-step explanation:

we know that

To find the area of the backyard that is not covered  by the hot tub and fire pit subtract the area of the hot tub and the area of the fire pit from the total area of the square backyard

so

A=20^{2}-(6)(8)-(7)(9)\\A=400-48-63\\ \\A=289\ ft^{2}

4 0
3 years ago
A computer store bought a program at a cost of $10 and sold it for $13 find the percent mark up
baherus [9]

13%, all you need to do is divided 13 by 100

6 0
2 years ago
Help pwease im not good at meth​
professor190 [17]

1 Simplify n+5+-m-3n+8n+5+−m−3n+8 to n+5-m-3n+8n+5−m−3n+8.

11-2m-(n+5-m-3n+8)11−2m−(n+5−m−3n+8)

2 Collect like terms.

11-2m-((n-3n)+(5+8)-m)11−2m−((n−3n)+(5+8)−m)

3 Simplify (n-3n)+(5+8)-m(n−3n)+(5+8)−m to -2n+13-m−2n+13−m.

11-2m-(-2n+13-m)11−2m−(−2n+13−m)

4 Remove parentheses.

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5 Collect like terms.

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6 Simplify.

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8 0
3 years ago
1/2 cm x 3/2cm x 7/4cm... Find the volume
forsale [732]
Remember, to the find the volume, you have to do length*width*height.

So it would be 7/4 * 3/2 * 1/2

To answer this, multiply all the numerators together, and multiply all the denominator together.

This would be:

21/16



So the answer is 21/16 cm^3 or 1.3125 cm^3.


Hope this helps. If you have any questions, place it in the comment section below.


6 0
3 years ago
Find f(-2) for f(x) = 2 · 34.
julia-pushkina [17]

Answer:

68

Step-by-step explanation:

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3 years ago
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