3 years ago

Consider the similarity transformation of ΔABC to produce ΔEDF.

Mathematics

1 answer:

iogann1982 [59]3 years ago

6 0

ABC rotates 90 degrees clockwise to become EDF.

ABC undergoes transformation of 1/2 so reduces its original size.

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Jerome is going to draw a marble from the bag shown below, replace it, and then draw another marble. What is the probability tha

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Marbles in a bag: 3 green, 4 yellow, 5 blue, 8 pink.

Event A - get a green or yellow marble
Event B - get a pink marble

Events A and B are independent because we draw a marble from a bag with 20 marbles in both cases.
$P(A)= \frac{3+4}{3+4+5+8}= \frac{7}{20} 
\\P(B)= \frac{8}{3+4+5+8}= \frac{8}{20} = \frac{2}{5}$

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3 years ago

Read 2 more answers

Which equation represents a line which is parallel to the line y = -x – 5?

NISA [10]

Answer:

None of them

Step-by-step explanation:

y=-x-5 => slope=-1

A. slope =-2/3

B. slope =-3/2

C. slope = 2/3

D. slope = 2/3

None of slope of the choices is -1

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3 years ago

A bank sends its customers an email when their accounts fall below —$1. Which inequality models this situation?

Semenov [28]

Answer:

a bank sends its customers an email iff a<1

Step-by-step explanation:

Let a=account

So, a<1

Therefore, a bank sends its customers an email iff a<1

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A university has 10,000 students of which 55% are male and 45% are female. if a class of 30 students is chosen at random from th

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Information provided:

Sample size, n = 30 students
P(Male), P(m) = 55% = 0.55
P(Female), P(f) = 45% = 0.45

Now,
Mean = nP(m) = 30*0.55 = 16.5 ≈ 17 students

Variance = (sd)^2 = nP(m)P(f) = 30*0.55*0.45 = 7.425 ≈ 8 students

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3 years ago