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arlik [135]
3 years ago
13

1. At the bookstore checkout, you watch as the register rings up your purchases and coupons. The prices were as follows:

Mathematics
1 answer:
Natalija [7]3 years ago
3 0

Answer: No , it is not reasonable as the total amount is sum upto $34 but in register the amount of bill is shown is greater than the original bill amount.

Step-by-step explanation:

Since we have given that

The prices  rounded off to the nearest dollar were as follows:

$1.85  → $2

$8.56  → $9

$6.30  → $6

$2.73  → $3

$5.25  → $5

$4.09  → $4

$7.95  → $8

– $0.85 (coupon)  → $1

– $2.10 (coupon) →  $2

So, total amount will be

2+9+6+3+5+4+8-1-2=\$34

But the value in the register gives total bill as $41.44

So, it is not reasonable as the total amount is sum upto $34 but in register the amount of bill is shown is greater than the original bill amount.

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Suppose a researcher is testing someone to see if he or she can tell Soda X from Soda​ Y, and the researcher is using 28 ​trials
AlladinOne [14]

Answer:

The probability that a person will get 17 or more​ right, if the person is truly​ guessing, is about 12.9%.

The p-value is the probability of obtaining the observed results of a test, assuming that the null hypothesis is correct.

Step-by-step explanation:

The system of hypothesis fo this case are:

Null hypothesis: p\leq 0.5

Alternative hypothesis: p >0.5

That's a upper right tailed test.

The p-value is the probability of obtaining the observed results of a test, assuming that the null hypothesis is correct.

And this value allows to reject or not the null hypothesis.

If p_v we reject the null hypotheis at the significance level. That indicates strong evidence against the null hypothesis, so you reject the null hypothesis.

If p_v>\alpha then we say that we fail to reject the null hypothesis at the significance level. That indicates weak evidence against the null hypothesis, so you fail to reject the null hypothesis.

5 0
3 years ago
A square has area 81 cm2. What is the side length of the square?
mafiozo [28]

Answer:

9cm

Step-by-step explanation:

a square has 4 equal sides, so to find out the area you do width x height

the area is 81cm², which means that the side length is 9cm as 9 x 9 = 81

hope this helps :)

4 0
3 years ago
help ! Find the volume of cylinder with a diameter of 8 inches and a height that is three times the radius. Use 3.14 for pi and
Jobisdone [24]
Diameter(d)=8 in.
radius(r)= d/2= 4 in.
height(h)= 3r = 3(4) = 12 in.

Volume=\pi<u /><em>r </em>² <em>h
           =</em>
(3.14)(4)²(12)
           =(3.14)(16)(12)
           =602.88 in.
    
       Therefore, the volume of the cylinder is 602.88 in.


3 0
3 years ago
Which of the following numbers is a factor of 51?​
juin [17]

Answer:

51 = 1 x 51 or 3 x 17. Factors of 51: 1, 3, 17, 51.

4 0
3 years ago
Read 2 more answers
Please help! And 20 points! :3
timofeeve [1]
1. 42 quarts
2. 6 pounds
3. 2.008 kilometers
3 0
3 years ago
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