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katen-ka-za [31]
3 years ago
5

Solve: 8x2 + 3x = -7

Mathematics
1 answer:
Agata [3.3K]3 years ago
3 0

Answer: PEMDAS

8•2 = 16

16+3x = -7

-3 -3

16 + x = -10

-16 -16

X= -26

Step-by-step explanation:

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Answer:

6

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A triangle has one leg that measures 12 cm and a hypotenuse 24 cm. Find the length of the other leg to the nearest tenth of cent
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9514 1404 393

Answer:

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Step-by-step explanation:

The term "hypotenuse" suggests this triangle is a right triangle. Then the other leg can be found using the Pythagorean theorem:

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The other leg is about 20.8 cm.

_____

<em>Additional comment</em>

A right triangle with a short leg that is 1/2 the length of the hypotenuse is the "special" 30°-60°-90° right triangle. The longer leg is √3 times the length of the short leg: 12√3 ≈ 20.8 cm.

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Step-by-step explanation:

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3 years ago
What is 64 times 10?
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Easier way to simplify :

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4 0
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Read 2 more answers
What are the expressions?
Romashka [77]
<h2>Explanation:</h2>

Here we need to solve some expressions. Remember the following rules:

(+)(+)=+ \\ \\ (-)(-)=+ \\ \\ (+)(-)=- \\ \\ (-)(+)=-

Then, from the left side:

5-2\cdot 7=5-14=\boxed{-9} \\ \\ 5-2\cdot 4=5-8=\boxed{-3} \\ \\ 5-2\cdot 0=5-0=\boxed{5} \\ \\ 5-2\cdot -3=5+6=\boxed{11} \\ \\ 5-2\cdot 10=5-20=\boxed{-15} \\ \\ 5-2\cdot -8=5+16=\boxed{21} \\ \\

from the right side:

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4 0
3 years ago
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