3 years ago

Pls help pls I’ll mark you brain

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

4 0

Answer:

option b is the correct one l

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D Line segments are the same and do not intersect

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The center of a cricle ids (h,7) and the radius is 10. The circle passes through (3,-1). Find all possible values of h.

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$center\ of\ a\ circle:(a;\ b)\\\\radius:r\\\\(x-a)^2+(y-b)^2=r^2\\\\========================\\\\(h;\ 7);\ r=10\\\\(x-h)^2+(y-7)^2=10^2\\\\========================$

$The\ circle\ passes\ throught\ (3;-1).\\\\Substitute\ x=3\ and\ y=-1:\\\\(3-h)^2+(-1-7)^2=100\\\\(3-h)^2+(-8)^2=100\\\\(3-h)^2+64=100\ \ \ /-64\\\\(3-h)^2=36\iff3-h=\pm\sqrt{36}\\\\3-h=-6\ or\ 3-h=6\\-h=-6-3\ or\ -h=6-3\\-h=-9\ or\ -h=3\\h=9\ or\ h=-3\\\\Answer:h=9\ or\ h=-3$

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arlik [135]

Answer:

$\sqrt[4]{2}$

Step-by-step explanation:

We start with the original problem:

$\frac{2^{3/4}}{2^{1/2}}$

So first we start by applying the quotient rule for powers, which tells you that whenever you are dividing two powers that have the same base and different power, you can copy the base and subtract the powers:

$\frac{b^{a}}{b^{c}}=b^{a-c}$