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3 years ago

What is the radius of a circle with the equation (x − 3)2 + (y − 7)2 = 9? A) 3 B) 4.5 C) 6 D) 9

2 answers:

7 0

$\bf \textit{equation of a circle}\\\\ (x- h)^2+(y- k)^2= r^2 \qquad center~~(\stackrel{}{ h},\stackrel{}{ k})\qquad \qquad radius=\stackrel{}{ r} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ (x-\stackrel{h}{3})^2+(y-\stackrel{k}{7})^2=9\implies (x-\stackrel{h}{3})^2+(y-\stackrel{k}{7})^2=\stackrel{r}{3^2}~\hfill \begin{cases} center~(3,7)\\ radius=3 \end{cases}$

Pepsi [2]3 years ago

3 0

Answer:

Step-by-step explanation:

(X-h)^2+ (y-k)^2=r^2

(X-6)^2+ (y+2)^2=9

R^2=9

R=3

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ABCD is a parallelogram. Determine the measure of ZB.<br> A) 78°<br> B) 52°<br> C) 39°<br> D) 96°

vovikov84 [41]

$\huge\fbox{Answer ☘}$

☆ given that ,

ABCD is a parallelogram

☆ we know that ,

opposite angles of a parallelogram are equal.

Therefore ,

$\bold\blue{∠B \:= \:∠D}$

$\pink{3x = x + 52} \\ \pink{3x - x = 52 }\\\pink{ 2x = 52 }\\\pink{ x = \frac{52}{2}} \\ \\ \bold\blue{x = 26}$

therefore , ∠B = 3x = 3 ( 26° ) = 78°

$\fbox{∠B \: = \: 78°}$

thus option ( A ) is correct ~

hope helpful~

8 0

2 years ago

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aleksandrvk [35]

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3 years ago

WhAt is the square root of 2 times the square root of 2

Papessa [141]

Answer:

2 is the answer

Step-by-step explanation:

its like

(square root 2)^2

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3 years ago

Point w is located at negative 2 3 on a coordinate plane W is reflected over the x-axis to create Point ww.W is then reflected o

frozen [14]

Answer:

W'' = (2, -3)

Step-by-step explanation:

Reflection over the x-axis changes the sign of the y-coordinate.

So, point W' is (-2, -3).

Reflection over the y-axis changes the sign of the x-coordinate.

So, point W'' is (2, -3).

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The answer can be determined by doing the reflections algebraically, as above, or by doing them on a graph, as below.

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balu736 [363]

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2 years ago