Help me.............

Mathematics

1 answer:

Anastasy [175]3 years ago

5 0

Answer:

the second one is right

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Y^2 -40y +c find the value of c that completes the square

o-na [289]

Answer:

$c = 400$

Step-by-step explanation:

${y}^{2} - 40y + 400 = {(y - 20)}^{2}$

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3 years ago

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What is the direct linear variation equation for the relationship?

defon

$\bf \begin{array}{cccccclllll}
\textit{something}&&\textit{varies directly to}&&\textit{something else}\\ \quad \\
\textit{something}&=&{{ \textit{some value}}}&\cdot &\textit{something else}\\ \quad \\
y&=&{{ K}}&\cdot&x
\\ \\
&& y={{ K }}x
\end{array}
\\ \quad \\

\begin{cases}
y=4\\
x=12
\end{cases}\implies y=Kx\implies 4=K\cdot 12$

solve for "K", to see what "K" is, or the "constant of variation",
once you found K, plug it back in y=Kx, and that's the equation

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3 years ago

How to do rotations in geometry

Fed [463]

1. <span>"Center" is the 'center of rotation.' This is the point around which you are performing your mathematical rotation.
</span>
2. <span>"Degrees" stands for how many degrees you should rotate. A positive number usually by convention means counter clockwise.</span>

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F(x)=-3|x-4| Vertical shrink by a factor of 1/2

sweet [91]

to vertically shrink a function by a factor of c, multiply the whole function by c

f(x) vertically shrunk by a factor of c would be cf(x)

so f(x)=-3|x-4| vertically shrunk by a factor of 1/2 would be $f(x)=(\frac{-3}{2})|x-4|$

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If you dunked a basketball and hung on to the rim, what force or forces would be acting on you while you were hanging on the rim

BabaBlast [244]

Selection A is appropriate.

_____
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4 years ago

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