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Sergio039 [100]
3 years ago
8

13 R S 12 What's the length of QR? A) 1 B) 17.7 C) 6.7 OD) 5

Mathematics
1 answer:
ANEK [815]3 years ago
8 0

Answer:

5

Step-by-step explanation:

This is a right triangle, so we can use the Pythagorean theorem

a^2+b^2 = c^2

where a and b are the legs and c is the hypotenuse

QR^2 + 12^2 = 13^2

QR^2 +144 =169

QR^2 = 169-144

QR^2 =25

Take the square root of each side

QR = sqrt(25)

QR =5

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Angelina_Jolie [31]

Use this 3 following steps:

1)At first, we should find the roots :

3x+8=0 => x=-8/3

x-4=0 => x=4

2)Using a chart for the limits:

photo

3)choose your solution:

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8 0
4 years ago
In the inequality 6a+4b>10, what could be the possible value of a if b=2?
Arlecino [84]

We are given the following inequality:

6a+4b>10

If we replace b = 2, we get:

\begin{gathered} 6a+4(2)>10 \\ 6a+8>10 \end{gathered}

Now we solve for "a" first by subtracting 8 on both sides:

\begin{gathered} 6a+8-8>10-8 \\ 6a>2 \end{gathered}

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Simplifying:

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3 0
2 years ago
Please help 40 points
Natasha2012 [34]

Answer:

-2 5/9

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w + (-x) - 2/3

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Add

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Change to a mixed number

-2 5/9

4 0
3 years ago
Help see the screenshot below! !
Artemon [7]

Answer:

p = 8h

Step-by-step explanation:

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scZoUnD [109]
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