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Likurg_2 [28]
3 years ago
11

A a fraction close to but greater than 1 1/2

Mathematics
1 answer:
Bad White [126]3 years ago
6 0

Answer:

Step-by-step explanation:

1 1/2 = 3/2

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Fifteen SmartCars were randomly selected and the highway mileage of each was noted The analysis yielded a mean of 47 miles per g
laiz [17]

Answer: a. 47 plusminus (1.753*(5 ÷ 3.8730)

Step-by-step explanation:

Confidence interval is written in the form,

(Sample mean - margin of error, sample mean + margin of error)

The sample mean, x is the point estimate for the population mean.

Margin of error = z × s/√n

Where

s = sample standard deviation = 5

n = number of samples = 15

z represents the test statistic

From the information given, the population standard deviation is unknown and the sample size is small, hence, we would use the t distribution to find the test statistic score

In order to use the t distribution, we would determine the degree of freedom, df for the sample.

df = n - 1 = 15 - 1 = 14

Since confidence level = 90% = 0.90, α = 1 - CL = 1 – 0.90 = 0.1

α/2 = 0.1/2 = 0.05

the area to the right of z0.05 is 0.05 and the area to the left of z0.05 is 1 - 0.05 = 0.95

Looking at the t distribution table,

z = 1.753

Margin of error = 1.753(5 ÷ 3.8730)

Confidence interval = 47 ± 1.753(5 ÷ 3.8730)

8 0
3 years ago
Determine which of the following relations represents a function
Rus_ich [418]

Answer:

B

B is the only one where the x-value doesn't have two y-values

7 0
2 years ago
PLEASE ANSWER ASAP! SUPAH IMPORTANT! MUST BE CORRECT! POINTS GIVEN!
Dafna11 [192]

You said                                  -x + 8  >  6

Subtract 8 from each side:      -x        > -2

Add 'x' to each side:                 0        > -2 + x

Add  2  to each side:                      2  >  x

Now, test the choices:

     A).  Can 'x' be 4 ?
            No.  2  is not greater than  4 .

     B).  Can 'x' be  1 ?
           Yes.  2  is greater than  1 .

     C).  Can 'x' be  2 ?
            No.  2  is not greater than  2 .

     D).  Can 'x' be  15 ?
            No.  2  is not greater than  15 .
     
6 0
3 years ago
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Simplify: –3(y + 2)^2 – 5 + 6y
GREYUIT [131]
The answer is -3y^2-6y-17
8 0
3 years ago
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Find the length of the base of a square pyramid if the volume is 48 cubic inches and has a height of 9 inches.
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The answer to your question, is 4 inches
hope this helps :D
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3 years ago
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