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Ratling [72]
3 years ago
9

Please help me i rlly need it

Mathematics
2 answers:
Yakvenalex [24]3 years ago
5 0

Answer:

im stuck on a similar problem right now

iogann1982 [59]3 years ago
4 0

Answer:

8.2

Step-by-step explanation:

Use cosine law:

BC² = 7² + 9² - 2(7)(9)cos(60)

BC² = 67

BC = sqrt (67)

BC = 8.1853

BC = 8.2 (nearest tenth)

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Look at the question, please orginize it in a good manner. NO LINKS!
tia_tia [17]

Answer:

for the first one its       right 2 down 5

for the second one its       right 5 down 2

for the third one its          left 2 up 5

i hope this helps pls tell me if im wrong

3 0
3 years ago
Read 2 more answers
Please help me now help me nowww please
topjm [15]

Answer:

A. 1
B. 3
C. 2
D. 5
E. 4
F. 6

7 0
2 years ago
A study conducted an experiment with 22,000 women over 10 years to investigate whether a high-stress job leads to heart problems
solniwko [45]
The sample of the group would be the 22,000 participants.
3 0
3 years ago
Which table represents a linear function? y=3,7,11,15 y=3,8,15,21 y=3,9,3,9 y=3,9,27,81?
steposvetlana [31]

The table that represents a linear function is y=3,7,11,15

<h3>How to determine the table?</h3>

For a table to represent a linear function, the table must have a constant rate of change i.e. a common difference

From the list of options, we have:

y=3,7,11,15

The difference between each y value is 4

i.e. 7 - 3 = 11 - 7 = 15 - 11 = 4

Hence, the table that represents a linear function is y=3,7,11,15

Read more about linear functions at:

brainly.com/question/4025726

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6 0
2 years ago
Pediatricians work an average of 48 h per week. The standard deviation is 12 hours. What percentage of pediatricians work more t
cricket20 [7]

Answer: 2.28 %

Step-by-step explanation:

Given : Mean : \mu=\ 48

Standard deviation :\sigma= 12

The formula to calculate the z-score :-

z=\dfrac{x-\mu}{\sigma}

For x = 72

z=\dfrac{72-48}{12}=2

The p-value = P(2

1-0.9772498=0.0227502\approx0.0228

In percent, 0.0228\times100=2.28\%

Hence, the  percentage of pediatricians work more than 72 h per​ week = 2.28 %

4 0
3 years ago
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