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blagie [28]
2 years ago
9

Carl is estimating 653 - 644. His work is shown below.

Mathematics
1 answer:
victus00 [196]2 years ago
7 0

Answer:

actual difference is 9

Step-by-step explanation:

the estimate is not reasonable.

he should have done 650-640.

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Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value u
Alenkasestr [34]

Answer:

The  value is  1.75 \  and  \   -1.75

Step-by-step explanation:

From the question we are told that

     The null hypothesis is  H_1 :  \mu \ne 3.24

     The level of significance is  \alpha = 0.08

From the z table  the critical value of  \alpha considering the two tails of the normal  curve( This is because this a two tailed test ) is

       z= \pm  1.75

Hence the critical value is  

       1.75 \  and  \   -1.75

         

5 0
3 years ago
Need help use screenshot(SAT Prep) In △ABC, AB = BC = 20 and DE ≈ 9.28. Approximate BD. bd equals?
Lilit [14]

Answer:

5.36

Step-by-step explanation:

Given that:

<BAD = <CAE, therefore, BD = EC

Let's take x to be the length of BD = EC

BD + DE + EC = BC

BC = 20,

BD = EC = x

DE ≈ 9.28

Thus,

x + 9.28 + x = 20

x + x + 9.28 = 20

2x + 9.28 = 20

Subtract 9.28 from both sides

2x + 9.28 - 9.28 = 20 - 9.28

2x = 10.72

Divided both sides by 2 to solve for x

\frac{2x}{2} = \frac{10.72}{2}

x = \frac{10.72}{2}

x = 5.36

BD ≈ 5.36

4 0
3 years ago
1) In the market for apartment housing, the quantity of available apartments is observed to be less than the number of renters w
jeka94

Answer:

Hey

Step-by-step explanation:

Hey did you find the answers to this? i really need it. im desperate!

4 0
2 years ago
Can u guys plz give me the answer to number 1-3
jek_recluse [69]
I'm pretty sure it is 5:55


8 0
3 years ago
Evaluate 9/g+2h+5 when g=3 and h=6
vladimir1956 [14]
To answer this question, simply input the values for g and h:

9/ (3) + 2 (6) + 5 = 9/ 3 + 12 + 5
                           = 9/ 20
          

Hope this helps!
6 0
3 years ago
Read 2 more answers
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