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german
3 years ago
12

A line has a slope of -3 and a rise of 21, what is the run?

Mathematics
1 answer:
grigory [225]3 years ago
8 0

Answer:

The run is -7.

Step-by-step explanation:

Since we know that slope = rise/run, we can calculate the run by inputting the given numbers.

So,

-3 = 21/x and we need to solve for x.

When we cross multiply we get -3x=21.

Then, divide -3 on both sides and x = -7

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What is the answer??
levacccp [35]

Answer:

76 unit^2

Step-by-step explanation:

Total area: (0.5  * base * height) +( length * breadth ) + (0.5 * base * height)

= (0.5 * 8 * 2) + ( 7*8) +( 0.5 * 8 * 3) = 8 + 56 + 12 = 76

7 0
2 years ago
What is the mean absolute deviation of her math scores?<br> 5.4<br> 6.4<br> 7.8.<br> o<br> 8.8
lara [203]

Answer:

The mean absolute deviation (MAD) of her Math scores would be 1.2.

Step-by-step explanation:

Mean: 5.4 + 6.4 + 7.8 + 8.8 = 28.4/4 = 7.1

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7.1 - 6.4 = 0.7

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Mean Absolute Deviation: 1.7 + 0.7 + 0.7 + 1.7 = 4.8/4 = 1.2

hope this helps :)

3 0
3 years ago
Factor 9b^2 - 4.<br><br> (3b + 1)(3b - 4)<br> (3b + 2)(3b - 2)<br> (3b - 2)(3b - 2)
maria [59]

The answer should be (3b + 2)(3b - 2) since if you multiply those two, you will get back to original equation.

Hope this helps!

5 0
3 years ago
Read 2 more answers
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Lady_Fox [76]
Y^2 + 4y - 32 = 0
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ziro4ka [17]
The answer is IV because I took the test
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3 years ago
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