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Julli [10]
3 years ago
12

PLZ HELP!!!! WILL GIVE BRAINLIEST ANSWER!!!

Mathematics
2 answers:
Neporo4naja [7]3 years ago
8 0

Answer: The value of the scale factor is -\frac{1}{2}.

Explanation:

It is given that the △E′F′G′ is the image of △EFG under a dilation through point C.

We know that the length of sides of image are in the proportion of length of sides of preimage. That proportion factor is also known as scale factor.

It is given that the length of FG is 8 cm and the length of F'G' is 4 cm.

k=\frac{F'G'}{FG} =\frac{4}{8} =\frac{1}{2}

Therefore the side of image and preimage are in proportion of \frac{1}{2}.

Since the image and preimage are not on the same side of the center of dilation it means the factor must be negative. So,

k=-\frac{1}{2}.

Therefore, -\frac{1}{2} is the scale factor of dilation.

Shalnov [3]3 years ago
7 0

the correct answer is - 1/2

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Step-by-step explanation:

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7 0
2 years ago
.................. ​
sveticcg [70]

Answer:

y = 100°

Step-by-step explanation:

x = 40° (vertical angles are congruent)

y is an exterior angel of a triangle that has two opposite internal angles, x (40°) and 60°.

According to the exterior angle of a triangle, thus:

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3 0
2 years ago
HELP ME I DONT KNOW HOW TO FIND THE PERIMETER
Phantasy [73]

Answer:

33.08 m

Step-by-step explanation:

angle of ∆ = 131.6 - 90 = 41.6

=> x² = 8²+3²-2(8)(3)cos 41.6°

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= 73 - 36

= 37

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5 0
2 years ago
Solve this .....................​
ycow [4]

Answer:

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28x root 5/root5 =10

28x=10

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x = 0.35

Hope it helped u,

pls mark as the brainliest

^v^

5 0
3 years ago
Sara was making slug slime soup for her six friends. She needed 0.06
Marina86 [1]

Answer:

0.01

can I have brainliest please

Step-by-step explanation:

3 0
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