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Lorico [155]
3 years ago
13

Can someone else me with this

Mathematics
2 answers:
aliya0001 [1]3 years ago
4 0

Answer:

Hi, there your answer is 4

Step-by-step explanation:

kolezko [41]3 years ago
3 0

Answer:

8

Step-by-step explanation:

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Two ships leave the same port at the same time. Two hours later ship A has traveled 12 miles and ship B has traveled 8 miles.
MakcuM [25]

Answer:

the angle between their paths is <em>100.8°</em>

Step-by-step explanation:

From the given information, you can construct a triangle, just like the one in the figure.

We will use the <em>Cosine Rule</em> which is:

c² = b² + a² - 2 b c cos(θ)

where

  • c = 16 miles
  • b = 8 miles
  • a = 12 miles

Therefore,

2 b c cos(θ) = b² + a² - c²

cos(θ) = (b² + a² - c²) / 2 b c

θ = cos⁻¹( (b² + a² - c²) / (2 b c) )

θ = cos⁻¹( (8² + 12² - 16²) / 2(8)(16) )

<em>θ = 100.8°</em>

<em></em>

Therefore, the angle between their paths is <em>100.8°</em>

4 0
3 years ago
The U.S. Census Bureau conducts a study to determine the time needed to complete the short form. The Bureau surveys 200 people.
OLga [1]

Answer:

The z-distribution should be used for this problem.

Step-by-step explanation:

The population distribution is assumed to be normal. Which distribution to use?

If we have the standard deviation for the sample, we use the t-distribution.

If we use the standard deviation for the population, we use the z-distribution.

There is a known standard deviation of 2.2 minutes.

This means that 2.2 is the population standard deviation, and thus, the z-distribution should be used for this problem.

4 0
3 years ago
A circle with the center at the origin and a radius length of 7
Novay_Z [31]

(7,0), (-7,0), (0,7), (0,-7)

6 0
3 years ago
HELPPPPPPP me with #7
Anna007 [38]
(10x+y)(100x^2-10xy+y^2)

5 0
3 years ago
Read 2 more answers
Find decimal notation.<br> 0.8​%
ipn [44]

To convert a percent to a decimal, divide the percent by 100.

0.8/100 = 0.008 <<<<<< answer.

3 0
3 years ago
Read 2 more answers
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