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Leviafan [203]
3 years ago
10

Shandler rides his bike to school every day. He travels to thousand 560 feet in 64 second. How many feet did he travel per secon

d?
Mathematics
1 answer:
zhenek [66]3 years ago
4 0

He traveled 40 feet per second

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Step-by-step explanation:

-4 + 4x = -pq

Add 4 to both sides

4x = -pq + 4

Divide both sides by 4

x = \frac{-pq + 4}{4}

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Convert 208 in base 10 to binary number​
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208

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URGENT! If you get the correct answer, you will get a BRAINLIEST!
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x_{1} =  - 2 -  \sqrt{2}  \\ x_{2} = - 2 +  \sqrt{2}

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In a study of cereal leaf beetle damage to oats, researchers measured the number of beetle larvae per stem in small plots of oat
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(d) H0: MeanMalathion - MeanNoMalathion equals 0

H1: MeanMalathion - MeanNoMalathion not equals 0

Step-by-step explanation:

Test statistic (t) = (mean 1 - mean 2) ÷ sqrt[pooled variance (1/n1 + 1/n2)]

Let the difference between the two means be x and the pooled variance be y

n1 = 5, n2 = 12

t = x ÷ sqrt[y(1/5 + 1/12)] = x ÷ sqrt(0.283y) = x ÷ 0.532√y = 1.88x/√y

Assuming the ratio of x to √y is 0.5

t = 1.88×0.5 = 0.94

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degree of freedom = n1 + n2 - 2 = 17 - 2 = 15

significance level = 0.05 = 5%

critical value corresponding to 15 degrees of freedom and 5% confidence interval is 2.131

The test is a two-tailed test because the alternate hypothesis is expressed using not equal to.

The region of no rejection of the null hypothesis lies between -2.131 and 2.131

Conclusion

Fail to reject the null hypothesis because the test statistic 0.94 falls within the region bounded by the critical values.

The scientist's claim is right.

A null hypothesis is a statement from a population parameter which is either rejected or accepted (fail to reject) upon testing. It is expressed using the equality sign.

An alternate hypothesis is also a statement from a population parameter which negates the null hypothesis and is accepted if the null hypothesis is rejected. It is expressed using any of the inequality signs.

3 0
3 years ago
You finish washing 3/4 of your windows in an hour and a half. At that rate, how much longer will it take you to finish washing a
Marysya12 [62]
It takes you 90 minutes to wash 3/4 of your windows

Multiply both numbers by 4.

It takes you 360 minutes to wash 3 of your windows.

Divide both numbers by 3.

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It will take you 2 hours to wash all the windows.
5 0
3 years ago
Read 2 more answers
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