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podryga [215]
3 years ago
9

Find the scale factor of the dilation. Then tell whether the

Mathematics
1 answer:
pshichka [43]3 years ago
3 0

Answer:

Enlargement

k =\frac{18}{4} =  \frac{9}{2}

Step-by-step explanation:

k = \frac{new}{old}

If k > 1 then its an enlargement.

If k < 1 then its a reduction

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Please answer this correctly
Pavlova-9 [17]

Answer:

the base is 5 meters long.

Step-by-step explanation:

To find the a missing side when given the area you have to multiply the area by 2 which in this case would be 50 so 50/10 would be 5m which is your answer.

6 0
3 years ago
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What’s the answer to this question
iragen [17]

Answer:

Step-by-step explanation:

14x^2-21

7 0
4 years ago
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A deep freezer has a temperature of -6°C when it is turned off.
Xelga [282]

Answer:

y = -6 + 1.2*x is the answer I would use, but see the note below.

Step-by-step explanation:

Let x = the number of minutes.

Let y = the temperature at any given time.

y = -6 + 1.2*x

This is the equation that you would use if you were calculating y with a calculator. If you are in a chemistry class it should be written as

y = - 6°C + 1.2°x/ min

4 0
3 years ago
Mary has 10 yards of string. she uses 2 yards of string for a project. she wants to cut the remaining string into pieces that ar
tatiyna
Mary has 10 yards She used 2 yards:
She sis left with 10 - 2 = 8 yards
She want to cut the rest at 1/3 yard long, 
8÷ 1/3 = 8 x 3 = 24 pieces
6 0
3 years ago
Fernanda runs a large bowling league. She suspects that the league average score is greater than 150 per
murzikaleks [220]

Answer:

1.20

Step-by-step explanation:

Let mean be represented by M and standard deviation by d. The score will be x and sample number of games be n

To get the test statistic, t for Fernanda's test, we use the formula

t=\frac {M-x}{\frac{s}{\sqrt n}}

Substituting 156 for mean, M then 150 for score x and 30 for standard deviation while 36 for n then

t=\frac {156-150}{\frac{30}{\sqrt 36}}

t=1.20 when put in two decimal place

6 0
3 years ago
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