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4 years ago

What is 965,000,000,000,000 in scientific notation?

1 answer:

4 0

The answer is 9.65x10^14 because in order for the decimal point to be between 9 and 6 you need to move 14 decimal places back

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Triangle ABC has the following vertices:

guajiro [1.7K]

Answer:

yes

Step-by-step explanation:

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3 years ago

Jackie set her watch 19 seconds behind, and it falls behind another 1 second every day.

Lunna [17]

Answer:

Step-by-step explanation:

the watch was alredy 19 seconds behind so you take 46 and subtract 19 and you get 27

8 0

4 years ago

What type of function is represented by the table of values below

mezya [45]

The difference in consecutive y values is increasing by double each time. 2^1, 2², 2³, 2⁴ etc so the function is exponential

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3 years ago

Read 2 more answers

What is the equivalent ratio in lower terms of 55:30?

natima [27]

Your answer would be b

8 0

3 years ago

An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such tha

ddd [48]

Answer:

We conclude that the valve performs above the specifications.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 6.3 pounds per square inch

Sample mean, $\bar{x}$ = 6.5 pounds per square inch

Sample size, n = 130

Alpha, α = 0.02

Population standard deviation, σ = 0.8

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 6.3\text{ pounds per square inch}\\H_A: \mu > 6.3\text{ pounds per square inch}$

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

Formula:

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

Putting all the values, we have

$z_{stat} = \displaystyle\frac{6.5 - 6.3}{\frac{0.8}{\sqrt{130}} } = 2.85$

Now, $z_{critical} \text{ at 0.02 level of significance } = 2.05$

Decision rule:

If the calculated statistic is greater than the the critical value, we reject the null hypothesis and if the calculated statistic is lower than the the critical value, we accept the null hypothesis

Since,

$z_{stat} > z_{critical}$

We fail to accept the null hypothesis and reject the null hypothesis. We accept the alternate hypothesis.

Thus, we conclude that the valve performs above the specifications.

3 0

3 years ago