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3 years ago

Can somebody help me on the questions I post please mark you brainliest

Mathematics

2 answers:

Natasha2012 [34]3 years ago

8 0

Answer:

sure

Step-by-step explanation:

GarryVolchara [31]3 years ago

6 0

Answer:

on your profile?

Step-by-step explanation:

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Tju [1.3M]

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Step-by-step explanation: with what?

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3 years ago

Mark, June & Henry share some money in the ratio 1 : 9 : 4.

Sladkaya [172]

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Mark brainliest please

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3 years ago

Read 2 more answers

A full bottle holds 1/4gallon of juice, If of3/5

sineoko [7]

Answer:

1/10 gallon

Step-by-step explanation:

2/5 left of 1/4 gallon

2/5 x 1/4 = 2/20 = 1/10 gallon

6 0

3 years ago

For Bill's birthday his mom is bringing donuts to school.

kipiarov [429]

36 donuts (2 1/2 dozen) = $8.00

So, you divide 8 by 36 and you get about 22¢ for each donut. Then, you do .22 x 12 which equals $2.64.

One dozen donuts = $2.64

3 0

3 years ago

An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 280 engines

DENIUS [597]

Answer:

The value of the test statistic is $t = -2.09$

Step-by-step explanation:

The null hypothesis is:

$H_{0} = 6.6$

The alternate hypotesis is:

$H_{1} \neq 6.6$

Our test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, $\sigma$ is the standard deviation(square roof of the variance) and n is the size of the sample.

In this problem, we have that:

$X = 6.5, \mu = 6.6, \sigma = \sqrt{0.64} = 0.8, n = 280$

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{6.5 - 6.6}{\frac{0.8}{\sqrt{280}}}$

$t = -2.09$

The value of the test statistic is $t = -2.09$

4 0

3 years ago

Can somebody help me on the questions I post please mark you brainliest​

Can somebody help me on the questions I post please mark you brainliest