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Dvinal [7]
3 years ago
8

Which similarity transformation could map △DEF to △D'E'F'? A) dilation and reflection B) dilation and translation C) rotation an

d dilation D) rotation and reflection
Answer is C
Mathematics
2 answers:
aliya0001 [1]3 years ago
6 0
C is correct
(im taking quiz)
Sergeeva-Olga [200]3 years ago
3 0
The answer is C my guy
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A right triangle has legs of lengths 9 cm and 12 cm. calculate the length of the hypotenuse?
just olya [345]
Let the legs of the triangle be a and b, and the hypotenuse c.

Your first instinct might tell you to use the Pythagorean theorem to go about solving this because c= \sqrt{a^{2}+b^{2}}. This works, but it is slow.

The fastest way to solve this is to recognize that the right triangle is a special triangle where the ratio of the sides are 3:4:5. This means that if the legs are 9 and 12, then the hypotenuse is 15 because 3*3 is 9, 3*4 is 12, and 3*5 is 15.
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3 years ago
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What is the surface area of a cube with faces that each have an area of 16 cm2?
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3 years ago
HELPPP ASAPP Bernie's Bars has determined that a granola bar measuring 3 inches long has a z-score of +1 and a granola bar measu
Len [333]

Answer:

Standard deviation of the length of granola bars produced at Bernie's Bars is 0.50      

Step-by-step explanation:

We are given the following information in the question:

Formula:

z_{score} = \displaystyle\frac{x - \mu}{\sigma}

where,

μ is the mean and σ is the standard deviation.

Putting the values we get:

\displaystyle\frac{ 3- \mu}{\sigma} = 1\\\\3 = \sigma + \mu\\\\\displaystyle\frac{ 3.5- \mu}{\sigma} = 2\\\\3.5 = 2\sigma + \mu

Solving the two obtained equations:

Subtracting the two obtained equation, we have:

3.5-3 = \mu + 2\sigma - \mu -\sigma\\\sigma = 0.5

Hence,  standard deviation of the length of granola bars produced at Bernie's Bars is 0.50

3 0
3 years ago
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If y varies directly with x, and y = 18 when x = 4, what is the constant of proportionality?
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Y is directly proportional to x and therefore takes the form y=kx where k is the constant of proportionality.

Dividing both sides by x for the given values, k becomes 18/4 = 4.5
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Find the median of the following heights which are in inches. <br>62,72,83,61,60,70,67,68,68,68
krok68 [10]
The answer is 68 because is repeating 3 times
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3 years ago
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