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Kazeer [188]
3 years ago
13

What are the values of v and b? (geometry question)

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
3 0

Answer:

b=41

Step-by-step explanation:

180=19v-41+(180-(20v+39))+17v

v=5

180=19v-41+b+17v

180=19(5)-41+b+17(5)

b=41

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Boris is taking a quiz for an online class. For the quiz, the system randomly assigns 2 high-difficulty questions, 7 moderate-di
Leviafan [203]

Answer:

\frac{7}{15}

Step-by-step explanation:

The probability that Boris is assigned a moderate-difficulty question would be the ratio of number of moderately difficult questions to the number of total questions available.

The quiz consists of 2 high difficulty, 7 moderate difficulty, and 6 low difficulty questions. That is 2 + 7 + 6 = 15 questions in total.

and

the number of moderately difficult questions is 7

Hence the probability would be 7/15

8 0
3 years ago
Solve by elimination:
Pie

Answer:

B (5, 13)

Step-by-step explanation:

9x + 4y = 97

9x + 6y = 123

To solve by elimination, we want to <em>eliminate</em> a variable. To do this, we must make one variable cancel out.

First, we can see that both equations have 9x. To cancel out x, we must make <em>one</em> of the 9x's <em>negative</em>. To do this, multiply <em>each term</em> in the equation by -1.

-1(9x + 6y = 123)

-9x - 6y = -123

This is one of your equations. Set it up with your other given equation.

9x + 4y = 97

-9x - 6y = -123

Imagine this is one equation. Since every term is negative, you will be subtracting each term.

9x + 4y = 97

-9x - 6y = -123

___________

0x -2y = -26

-2y = -26

To isolate y further, divide both sides by -2.

y = 13

Now, to find x, plug y back into one of the original equations.

9x + 4(13) = 97

Multiply.

9x + 52 = 97

Subtract.

9x = 45

Divide.

x = 5

Check your answer by plugging both variables into the equation you have not used yet.

-9(5) - 6(13) = -123

-45 - 78 = -123

-123 = -123

Your answer is correct!

(5, 13)

Hope this helps!

6 0
3 years ago
What are the next three terms in the sequence 2, -4, -16, 32
Nikitich [7]

Answer:

128, -256, -1024

Step-by-step explanation:

multiply 32 by 4, multiply 128 by -2, multiply -256 by 4

5 0
1 year ago
<img src="https://tex.z-dn.net/?f=x-7%20%3D%2010" id="TexFormula1" title="x-7 = 10" alt="x-7 = 10" align="absmiddle" class="late
Artist 52 [7]

Answer:

This is your answer <( ̄︶ ̄)↗

Step-by-step explanation:

.

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plz mark me a brainlist..

#hope it helps you..

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3 0
2 years ago
Read 2 more answers
Simplify using Quotient<br> Rule<br> 10^12 OVER 10^8
OverLord2011 [107]

Answer:

10^4

Step-by-step explanation:

All you have to di is subtract the exponents.

5 0
3 years ago
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