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Brilliant_brown [7]
3 years ago
8

Anwser Please unit test!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
Julli [10]3 years ago
8 0
The correct answer is 179. I will explain the steps I took to find the correct answer.

First write the problem- 5x^2+x-7, also be reminded x=6.

Second lets begin to start solving it.

6 squares equals 36 ( also known as 6×6)

Now 36*5=180. This is the first half of the problem.

Continuing to solve

180+x-7

Remember x=6 so now 180+6-7

Finally you find your answer by solving 180+-1, which is 179




Phantasy [73]3 years ago
4 0
First, substitute 6 in for x:
5 x 6^2 + 6 - 7
Simplify:
30^2 + 6 - 7
30^2 + 1
900 + 1
901

Hope this helps!!
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3 years ago
HELPPPP ASAPPP PLEASSSSEE
kolezko [41]

Let dimes = d and quarters =q

D + q = 50

D= 50-q

0.10d + 0.25Q = 7.70

Replace d with 50-q:

0.10(50-q) + 0.25q = 7.70

Simplify:

5 -0.10q + 0.25q = 7.70

5 + 0.15q = 7.70

Subtract 5 from both sides:

0.15q = 2.70

Divide both sides by 0.15:

Q = 2.70 / 0.15

Q = 18

D = 50-18 = 32

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5 0
3 years ago
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Can you please help me with this problem
vagabundo [1.1K]
\bf \begin{cases}
\textit{area of a circle}=\pi r^2
\\ \quad \\
circumference=2\pi r
\end{cases}
\\ \quad \\

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\\ \quad \\
thus
\\ \quad \\
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