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Kitty [74]
2 years ago
12

The number of staples an average stapler can hold has an order of magnitude of 4.

Mathematics
1 answer:
lara [203]2 years ago
6 0

Answer:

the answer this question is false.

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Michael's haircut was $14.00. he gave a tip of $3.50. what percent did michael leave as a tip
avanturin [10]
He gave a 25% tip

hope this helped
3 0
3 years ago
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The LB Company has long manufactured a light bulb with an average life of 5400 hours. Company researchers have recently develope
elena55 [62]
<h2><u>Answer with explanation</u>:</h2>

Let \mu be the average life of light bulbs.

As per given , we have

Null hypothesis : H_0 : \mu =5400

Alternative hypothesis : H_a : \mu >5400

Since H_a is right-tailed and population standard deviation is also known, so we perform right-tailed z-test.

Formula for Test statistic : z=\dfrac{\overlien{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

where, n= sample size

\overline{x}= sample mean

\mu= Population mean

\sigma=population standard deviation

For n=95,\ \overline{x}=5483\ \&\ \sigma=500, we have

z=\dfrac{5483-5400}{\dfrac{500}{\sqrt{95}}}=1.61796786124\approx1.6180

Using z-value table , Critical one-tailed test value for 0.06 significance level :

z_{0.06}=1.5548

 Decision : Since critical z value (1.5548) < test statistic (1.6180), so we reject the null hypothesis .

[We reject the null hypothesis when critical value is less than the test statistic value .]

Conclusion : We have enough evidence at 0.06 significance level to support the claim that the new filament yields a longer bulb life

8 0
3 years ago
Montana is known for having very chilly winters. One night, the temperature was falling by 2 degrees Fahrenheit each hour. At su
Kipish [7]

Answer:

7 hours

Step-by-step explanation:

We are given that

At sunset, the temperature=-5 degrees Fahrenheit

Each hour, temperature falling=2degrees Fahrenheit

We have to find time taken to reach the temperature -19° F.

Let x be the time time taken to reach the temperature -19° F

According to question

-5+x(-2)=-19

Where we taking 2 negative because temperature decreases.

-5-2x=-19

-5+19=2x

14=2x

x=\frac{14}{2}

x=7

Hence, it will take 7 hours for the  temperature to reach -19° F.

3 0
3 years ago
Help Urgent ! is it B or C I am not sure what to pick
algol13

Answer:

C is the answer.

3 0
2 years ago
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The local Red Cross had a goal of people donating 1000 pints of blood. Each person can usually give 1 pint. What percent of the
BARSIC [14]

Answer:

B

Step-by-Step Explanation:

if you do a <u>Percent Proportion</u> you will get:

_1__    =     _0.1_                       0.1x10=1

1000           100

3 0
3 years ago
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