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SashulF [63]
3 years ago
5

On Saturday, 2.4 inches of snow fell. Another 8.125 inches of snow fell on Sunday. What was the total amount of snow that fell i

n the two days?
Mathematics
1 answer:
AfilCa [17]3 years ago
6 0
To get your answer you add the two numbers together. That gets you 10.525 inches of snow.
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In a restaurant, the proportion of people who order coffee with their dinner is p. A simple random sample of 144 patrons of the
mote1985 [20]
<h2>Answer with explanation:</h2>

Given : In a restaurant, the proportion of people who order coffee with their dinner is p.

Sample size : n= 144

x= 120

\hat{p}=\dfrac{x}{n}=\dfrac{120}{144}=0.83333333\approx0.8333

The null and the alternative hypotheses if you want to test if p is greater than or equal to 0.85 will be :-

Null hypothesis : H_0: p\geq0.85   [ it takes equality (=, ≤, ≥) ]

Alternative hypothesis : H_1: p  [its exactly opposite of null hypothesis]

∵Alternative hypothesis is left tailed, so the test is a left tailed test.

Test statistic : z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

z=\dfrac{0.83-0.85}{\sqrt{\dfrac{0.85(1-0.85)}{144}}}\\\\=-0.561232257678\approx-0.56

Using z-vale table ,

Critical value for 0.05 significance ( left-tailed test)=-1.645

Since the calculated value of test statistic is greater than the critical value , so we failed to reject the null hypothesis.

Conclusion : We have enough evidence to support the claim that p is greater than or equal to 0.85.

8 0
3 years ago
What do we call financial assistance for a student who meets academic, athletic, or talent requirements to help pay for college
sladkih [1.3K]
This is a scholarship.

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8 0
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please help me with this :( I did the first one and I’m confused on the others I’ll mark u brainliest
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Answer:

second one:  -4x +6

third one: 4x - 16

fourth:   245x + 30

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Answer:

SR/BC=RT/CA    And  /R=/C  S B And D

Step-by-step explanation:

Just Look at them then compare its pretty simple you just have to think about it.

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r-ruslan [8.4K]

Answer:

23

Steps ig

((8x2) +2x(-3)))-(((-(-4)) x 2) +( 3 x( -7)) =23

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