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borishaifa [10]
3 years ago
13

If I have a circle with a raduis of 2 and I want to increase the raduis to 16, what is the scale factor?

Mathematics
1 answer:
Nana76 [90]3 years ago
5 0

Answer:

8

Step-by-step explanation:

2 * 8 = 16

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If M is the midpoint of XY, find the coordinates of X if M(-3,-1) and Y(-8,6)
vova2212 [387]
\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
X&({{ a}}\quad ,&{{ b}})\quad 
%  (c,d)
Y&({{ -8}}\quad ,&{{ 6}})
\end{array}\qquad
%   coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)

\bf \left( \cfrac{-8+a}{2}~,~\cfrac{6+b}{2} \right)=\stackrel{M}{(-3,-1)}\implies 
\begin{cases}
\cfrac{-8+a}{2}=-3\\\\
-8+a=-6\\
\boxed{a=2}\\
----------\\
\cfrac{6+b}{2}=-1\\\\
6+b=-2\\
\boxed{b=-8}
\end{cases}
5 0
3 years ago
Identify the slope and the y-intercept in the equation y = -3/4x + 3. Please make sure to say which is the slope and which is th
Liula [17]

Answer:

the y -intercpt is the 3

the slope is -3/4

Step-by-step explanation:

this is because the 3 is the starting point on the y-axis and the slope is -3/4 because you are going down 3 to the right 4 ---hope this helps

5 0
4 years ago
Read 2 more answers
Mhanifa can you please help! I really need it and I don’t want random answers. I will mark brainliest! Thanks!
exis [7]

Answer:

<h3>Q1</h3>

<u>Use slope formula</u>

  • m = (y2 - y1)/(x2 - x1)
  • m = (-2 - 6)/(3 - 7) = -8 / -4 = 2
  • m = 2
<h3>Q2</h3>

Angles 2 and 6 are on the corresponding sides of the parallel lines, hence are corresponding angle

<u>Correct option is </u>

  • A. Corresponding
<h3>Q3</h3>

Congruent triangles have congruent corresponding parts

  • ΔABC ≅ Δ GHI
  • AB≅GH
  • AB = GH = 13

<u>Correct choice is</u>

  • B. 13
<h3>Q4</h3>

Option b is correct for any line and doesn't make the lines parallel. The rest of the options are correct for parallel lines.

<u>Correct option is the last one:</u>

  • a, c & d
3 0
3 years ago
Can someone give me a real answer?
garik1379 [7]
2287.8 m2 i hope this help
4 0
4 years ago
What is the answer?!
Brut [27]
The answer is 445363.571429!
3 0
3 years ago
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