2 years ago

PLEASE HELP! I'm on a time limit!!

Mathematics

2 answers:

kompoz [17]2 years ago

4 0

Answer:

A. (8, 7), B (19, −12), C (−21, 14)

Step-by-step explanation:

You swap the X and Y coordinate for reflections over y=x

pav-90 [236]2 years ago

4 0

Answer:

Its the first choice.

Step-by-step explanation:

You flip the coordinates so the point (a, b) shifts to (b, a). So point A (7, 8) shifts to (8.7).

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3 years ago

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Sphere B is the image of sphere A after dilation by a scale factor of 44. If the surface area of sphere B is 432 km^2, find the

Sergeeva-Olga [200]

<h2>Answer:</h2>

27 km²

<h2>Step-by-step explanation:</h2>

$SA=4\pi Jr^2$

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$r_B=\frac{6\sqrt3}{\sqrt{50}}$

$r_A=\frac{r_B}{4}=\frac{3\sqrt3}{2\sqrt\pi}$

$S_0SA=4\pi Y\begin{matrix}2\\A\\\end{matrix}$

$=4\pi\bullet\frac{27}{4\pi}$

$=27\ km$

$Y_B:Y_A=4=1$

$SA_B:SA_A=16:1$

$432\div 16=27\ km^2$

$simple\ relation.$

<em>I hope this helps you</em>

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2 years ago

Name the property used in n + 0 = 7.

Naya [18.7K]

Answer:

Step-by-step explanation:

Zero is the additive identity property.

Hope this helps

-Amelia

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