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Scrat [10]
3 years ago
7

F(x) = 3 x² + 5 x - 7 and g(x) = x² + 8 x + 10

Mathematics
1 answer:
Korolek [52]3 years ago
8 0

f(x) + g(x) \\ 3x {}^{2}  + 5x - 7 + x {}^{2}  + 8x + 10 \\ 4x {}^{2}  + 13x + 3

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Juan walks 3.5 miles in 56 minutes. How long will it take him to walk 1 mile?
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distance = time * speed

1 mile = time * 3.5 miles /56 minutes

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Arun bought a ball with a 20$ note and received 7$ change. Then, he bought a bat with three 10$ notes and received 8$ change. Al
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50$

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Can somebody please help me asapppp ??
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Step-by-step explanation:

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3 years ago
Which of the following is NOT an integer? A. 8/2 B. 1/4 C. 0 D. -5​
vovangra [49]

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B. 1/4

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6 0
2 years ago
A square has a diagonal length 18 in. What is the side length of the square?
Elenna [48]

Answer:

9\sqrt{2} inches

or

12.728 inches

Step-by-step explanation:

Use Phytagorean Theorem

a^{2} +b^{2} =c^{2}

Since both all sides of a square are equal, this means that a^{2} and b^{2} are equal.

So that leaves us with:

a^{2} +a^{2} = 18^{2}

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2a^{2} = 324

Divide both sides by 2

\frac{2a^{2} }{2} =\frac{324}{2}

Simplify

a^{2} = 162

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\sqrt{a^{2} } =\sqrt{162}

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(or if you want the decimal, rounded to the 3rd decimal place: 12.728)

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2 years ago
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