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ArbitrLikvidat [17]
3 years ago
15

Triangle ABC be similar to triangle DCE.

Mathematics
1 answer:
Studentka2010 [4]3 years ago
3 0
Pls. see attachment.

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A researcher is interested in estimating the average salary of police officers in a large city. She wants to be 95% sure that he
inn [45]

Answer:

The sample size is 183.

Step-by-step explanation:

Given:

σ = $1050, ppulatin standard deviation

99% confidence interval

Accuracy = +/- $200

The accuracy is given by

z*(σ/√n)

where

z* = 2.576 for 99% confidence level (from tables)

n = sample size

Therefore

2.576(1050/√n) = 200

√n = (2.576*1050)/200 = 13.524

n = 182.9

<em>The sample size is 183</em>

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6 0
3 years ago
Brian has 3 basketball cards and 5 baseball cards <br> What’s the fraction of the baseball cards
pickupchik [31]
It would be 5/8 .....................
6 0
3 years ago
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What is the area of this triangle ?!
fomenos

Answer:

35.

Step-by-step explanation:

To find the area, multiply the length and the width.

A = L x W

7 x 5 = 35

6 0
3 years ago
Read 2 more answers
B Find the class that contains the median. <br><br><br><br> c Find the modal class.
Alex_Xolod [135]

Answer:

can you add a paper or more info to answer

Step-by-step explanation:

5 0
3 years ago
Use the Law of Sines to solve for x. Round to the nearest whole number.
bagirrra123 [75]

Answer:

12.94

Step-by-step explanation:

By the law of sines:

x / sin(35) = 7.9 / sin70

x = 7.9 * sin(70)/sin(35)

= 7.9 * 0.9397 / 0.5736

= 12.94

6 0
3 years ago
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