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tatuchka [14]
3 years ago
7

I need help please :)

Mathematics
1 answer:
kumpel [21]3 years ago
6 0
20² = (8 + 8)² + x²
x = 12
-
the missing side has a value of 12, found using pythagorean theorem
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3 years ago
Solve 3x to the <br> second power <br> -2x-8=0 using an algebraic method
MatroZZZ [7]

Answer:

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Step-by-step explanation:

Given:

The equation is given as:

3x^{2}-2x-8=0\\3x^{2}-6x+4x-8=0\\3x(x-2)+4(x-2)=0\\(x-2)(3x+4)=0\\\\x-2=0\textrm{ or }3x+4=0\\x-2+2=0+2 \textrm{ or }3x+4-4=0-4\\x=2\textrm{ or }3x=-4\\x=2\textrm{ or}\\x=-\frac{4}{3}

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3 years ago
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Step-by-step explanation:


8 0
3 years ago
1. If p(x) = 3x + 4x² - 5x +8, find p(-2).​
levacccp [35]

Step-by-step explanation:

\small{\underline{\tt{\red{Given}}}}

\rightarrow p(x) = -2

\small{\underline{\tt{\green{solution}}}}

\rightarrowp(x) = 3x +  {4x }^{2}  - 5x + 8

\rightarrowp( - 2) = 3( - 2) + 4( { - 2}^{2} ) - 5( - 2) + 8

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\small\boxed{p(-2) = 28 }

Hope it helps

4 0
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slope is change in y over change in x

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-3/4

7 0
3 years ago
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