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ollegr [7]
3 years ago
5

URGENT NEED HELP CLICK TO SEE

Mathematics
2 answers:
Hatshy [7]3 years ago
7 0

Answer:

<u> </u><u> </u><u> </u><u>35</u><u> </u><u> </u><u> </u>

Step-by-step explanation:

- x - = +

Therefore :

-5 x - 7 = 35

gogolik [260]3 years ago
3 0
35
“Negative times a negative is a positive”
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Who won the first war1
Xelga [282]
I'll take it as world war 1, the allied forces won the war, including UK, italy, US, france, russia and many more. they accepted the surender of germany, hungary, austria and other central forces.  
7 0
4 years ago
A porch has the shape of a quarter circle with a diameter of 5 ft.
PtichkaEL [24]
So you have a quarter circle

this area is equal so 1/4 of total area
find total area and diviby by 4

area=pi r^2
diameter=2r
diameter/2=r
diameter=5
5/2=r=2 and 1/2=2.5

equation is now
3.14 times 2.5^2
3.14 times 6.25
19.625

that is total area

now divide by 4
19.625/4=4.9 ft
round to nearest foot
5

answer is 5 ft^2
4 0
3 years ago
Brand A: 240 mg sodium for 1/3 pickle
iris [78.8K]
Make the fraction a decimal first then that will be .3 so 240/3 you make the 3 a 1 then 325/.5 so make the 5 a 1 then the number above the one is the unit rate but you have to divide the top by the same number you divided to the bottom
6 0
4 years ago
Last question, if its wrong expect a pc flying through your window
slavikrds [6]

Answer:

D. 73°

Step-by-step explanation:

The inside angles of a triangle always equal 180° so if we know that a right angle is already 90° we only need one more angle to know all of them:

1. 90° + 17° + ?° = 180

2. 90° + 17° = 107°

3. 180° - 107° = 73°

4. 90° + 17° + 73° = 180

5. XD

6 0
4 years ago
"Tongue Piercing May Speed Tooth Loss, Researchers Say" is the headline of an article. The article describes a study of 51 young
Paul [167]

Answer:

The 95% confidence interval for the proportion of young adults with pierced tongues who have receding gums is (0.24, 0.506).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 51, \pi = \frac{19}{51} = 0.373

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.373 - 1.96\sqrt{\frac{0.373*0.627}{51}} = 0.24

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.373 + 1.96\sqrt{\frac{0.373*0.627}{51}} = 0.506

The 95% confidence interval for the proportion of young adults with pierced tongues who have receding gums is (0.24, 0.506).

3 0
4 years ago
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