3 years ago

Solve for d s = n /2 [ 2 a + ( n − 1 ) d ]

Mathematics

1 answer:

ludmilkaskok [199]3 years ago

7 0

The answer is d= -2an+2s/n^2-n

That answer should be in a fraction form.

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In an effort to estimate the mean amount spent per customer for dinner at a major Atlanta restaurant, data were collected for a

Softa [21]

Answer:

95% Confidence interval = (23.4,26.2)

Step-by-step explanation:

In this problem we have to develop a 95% CI for the mean.

The sample size is n=49, the mean of the sample is M=24.8 and the standard deviation of the population is σ=5.

We know that for a 95% CI, the z-value is 1.96.

The CI is

$M-z*\sigma/\sqrt{n}\leq\mu\leq M+z*\sigma/\sqrt{n}\\\\24.8-1.96*5/\sqrt{49}\leq\mu\leq 24.8+1.96*5/\sqrt{49}\\\\ 24.8-1.4\leq\mu\leq 24.8+1.4\\\\23.4\leq\mu\leq 26.2$

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4 years ago

Four less than the product of ten and a number is eleven. is

nikitadnepr [17]

Answer:

If written in algebraic form it is, 10x - 4 = 11

Step-by-step explanation:

Four less ( minus 4 ) than the product of ten and a number ( 10 times x ) is eleven ( equal to 11 ).

Hopefully this helps!

Brainliest please?

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3 years ago

1 minus 1/2 minus 1/3 minus 1/4

serg [7]

1 - 1/2 - 1/3 - 1/4 =

12 - 6 - 4 -3 =

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= -1/12 (-0.08333...)

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3 years ago

A sum of money when invested for a definite period at r% simple interest will yield an interest of rm80 .using the same interest

maks197457 [2]

The invest could probably be maybe 8% for a question

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3 years ago

Compare Decima<br> 2.48 [. ] 2.53<br><br> I need help finishing if this is a <,> or =

lorasvet [3.4K]

Answer: <

Step-by-step explanation:

2.48 < 2.53

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3 years ago