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anastassius [24]

3 years ago

8

Charlie wants to estimate how much time in the eighth grade students in his school spend on their homework each night which samp

le of matter would give Charlie the best estimate

1 answer:

Fudgin [204]3 years ago

7 0

Answer:

it is b

Step-by-step explanation:

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A 32 year old mother realized that her age is twice the sum of her two children's ages. Her son, Jose is two years older than he

dexar [7]

Answer:1,15 2,14 3,13 4,12 5,11 6,10 7,9 8,8 {x,y}

Step-by-step explanation:

There would be multiple answers for this question so what you have to do is find what doubles to 32 which would be 16 so you just have to find two numbers that add to 16 so the answers could be; 1,15 2,14 3,13 4,12 5,11 6,10 7,9 8,8

6 0

3 years ago

Read 2 more answers

What is the algebraic expression for the difference between nine times a number and four more than six times the number?

Mazyrski [523]

Answer:

9n-(6n+4)

Step-by-step explanation:

n is number

7 0

3 years ago

I have more to come help please:(

Serggg [28]

Maaaaane I’m sorry I can’t help

4 0

3 years ago

A survey of 32 different gas stations in Texas found the average price of gasoline to be $3.19 a gallon with a sample standard d

Leni [432]

Answer:

The value of test statistic is -4.1247

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $3.26 a gallon

Sample mean, $\bar{x}$ = $3.19 a gallon

Sample size, n = 32

Sample standard deviation, σ = $0.096

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 3.26\text{ dollars a gallon}\\H_A: \mu < 3.26\text{ dollars a gallon}$

We use one-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{3.19 - 3.26}{\frac{0.096}{\sqrt{32}} } = -4.1247$

Thus, the value of test statistic is -4.1247

3 0

3 years ago

Jada was using square stickers that were 3/4in long to decorate the spine of a photo album. The spine is 10 and 1/2in long. If s

nevsk [136]

Answer:

13

Step-by-step explanation:

Given:

Square stickers that were 3/4 in long
The spine is 10 and 1/2 in long

If she laid the stickers side by side without gaps or overlaps so the number of sticker to cover the length of the spine:

$\frac{The length of the spine}{the length of the sticker}$

10 : $\frac{3}{4}$ ≈13

She needs 13 stickers cover the length of the spine

7 0

3 years ago

Read 2 more answers