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2 years ago

The equation of a parabola is y=1/8x2−4x+41 .

Mathematics

2 answers:

zimovet [89]2 years ago

4 0

Answer:

i took the test

Dafna1 [17]2 years ago

3 0

Y=7............................................................................................................................................................

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30 boxes of melons and 4 melons in each bag . Each bag holds two melons. How melons are there in the store.

SVEN [57.7K]

The answer is the store has 240 melons.
(30x4)x2=240

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3 years ago

A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time student

Butoxors [25]

Answer: $(21.541,\ 23.059)$

Step-by-step explanation:

The confidence interval for population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : $n=240$ , which is a large sample , so we apply z-test .

Sample mean : $\overline{x}=22.3$

Standard deviation : $\sigma= 6$

Significance level : $\alpha=1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.960$

Now, a confidence interval at the 95% level of confidence will be :-

$22.3\pm(1.960)\dfrac{6}{\sqrt{240}}\\\\\approx22.3\pm0.759\\\\=(22.3-0.759,\ 22.3+0.759)\\\\=(21.541,\ 23.059)$

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3 years ago

Divide.

melomori [17]

C. hope this helps:)

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3 years ago

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A student has passed 60 percent of the 20 quizzes he has written so far successfully. if the student writes 50 quizzes during th

Lady bird [3.3K]

60% of 20 is (0.6 x 20) = 12 passes There are a further 30 quizzes remaining (50 total during the year minus 20 already written) 80% of 30 is (0.8 x 30) = 24 passes The student has passed (12 + 24) = 36 quizzes out of 50 total, giving an overall pass percentage of ((36 / 50) x 100)) = 72%.

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3 years ago

Read 2 more answers

HELP ASAP!!

Over [174]

The answer is c becuse there’s only 2 cs and 3 of the others

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2 years ago