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2 years ago

A car travels at an average speed of 52 miles per hour. How many miles does it travel in 5 hours and 45 minutes?

Mathematics

2 answers:

Dimas [21]2 years ago

4 0

Answer:

299

Step-by-step explanation:

On average, it travels 52 miles in each hour. In 5 3/4 hours, it travels 5 3/4 times 52 miles.

(5 3/4)(52 miles) = 299 miles

It travels 299 miles in the given time.

Sunny_sXe [5.5K]2 years ago

3 0

Answer:

The car will travel 195 miles.

Step-by-step explanation:

(3.75 hrs)(52 mph)=195 miles

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The College Board provided comparisons of Scholastic Aptitude Test (SAT) scores based on the highest level of education attained

poizon [28]

Answer:

a. $H_{0}:$ u1≤u2

$H_{a} :u1>u2$

b P<0.05 rejected H

Step-by-step explanation:

College High School

485 442

534 580

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The mean is the average . the sum of number over the number of observation

x1=525

x2=487

s.d1=59.42

s.d2=51.74

n1=16

n2=12 $\alpha =0.05$

Determine the hypothesis

$H_{0}:$ u1≤u2

$H_{a} :u1>u2$

find the degree of freedom $(\frac{s1^2}{n1} +\frac{s2^2}{n2} )^2/(\frac{s1^2}{n1} )^2/n1-1+(s2^2/n2)^2/n2-1\\\\(\frac{59.42^2}{16} +\frac{51.7476^2}{12} )^2/(\frac{59.42^2}{16} )^2/16-1+(51.74^2/12)^2/12-1$

p-value is the probability of obtaining the value of the test statistics. In the column of t-value in the row df=25

0.025<P<0.05

if the P value is actually less than or the same as the significant level, then the null hypothesis is rejected

P<0.05 rejected H

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2 years ago

Vanya drove 405 miles in 9 hours. Chuy drove 350 miles in 7 hours. Alfredo drove 330 miles in 6 hours. Who was driving at the fa

Novosadov [1.4K]

Answer:

350 miles in 7 hours

Step-by-step explanation:

find

if 9=405

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2. do the same for the others and select the highest number

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2 years ago

What is 2 x 10 to the -6th power?

White raven [17]

Answer:

2 x 10 to the -6th power is .000002.

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2 years ago

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Which number is larger, 9.1 or √81 ? Explain

Katen [24]

Answer: 9.1

Sqrt(81)=9

So 9.1 is larger!
Thanks!

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2 years ago

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A training program is used by a corporation to direct hirees to appropriate jobs. The program consists of two steps.

AlekseyPX

The probability is the probality of being designated a a management trainee (i.e. 30%) * the probability of not be appointed to a management posittion (i.e. 25%, which comes from 20% to be assigned to nonmanagerial position + 5% of being fired).

Result: 30% * 25% = 7.5%.

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