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2 years ago

Um...help please??????

Mathematics

2 answers:

Ket [755]2 years ago

7 0

Answer:

Step-by-step explanation:

64inches

posledela2 years ago

6 0

Answer:
64 inches
Problem work

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Griffin ordered a pair of sneakers online. He had a $17 credit that he applied toward the purchase, and then he used a credit ca

MrMuchimi

Well it would be 63$ if we are not including tax because 80-17=63

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2 years ago

Which statements are true for the following expression?<br> (9 + 1) · 5

kvasek [131]

Answer:

Step-by-step explanation:

add

9 + 1 = 10

multiply

10 * 5 = 50

Answer: 50

3 0

2 years ago

Each pound of fruit costs $4. Write an expression that shows the total cost of the fruit. Use the variable you identified in que

vovangra [49]

Answer:

$ $4f$

Step-by-step explanation:

Let's assume $f$ represents the number of pounds of fruit.

We need to multiply the number of pounds of fruit by the cost per pound.

This is $ $f * 4$ , or in a simpler form, $ $4f$ .

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3 years ago

Find the prime factor of the number 3825.

Masja [62]

Answer:

the answer is 3×3×5×5×17=3825 use prime factorization

3 0

2 years ago

Construct the confidence interval for the population mean mu. c = 0.90, x = 16.9, s = 9.0, and n = 45. A 90% confidence inte

Georgia [21]

Answer:

The 90% confidence interval for population mean is $14.7 < \mu < 19.1$

Step-by-step explanation:

From the question we are told that

The sample mean is $\= x = 16.9$

The confidence level is $C = 0.90$

The sample size is $n = 45$

The standard deviation

Now given that the confidence level is 0.90 the level of significance is mathematically evaluated as

$\alpha = 1-0.90$

$\alpha = 0.10$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the standardized normal distribution table. The values is $Z_{\frac{\alpha }{2} } = 1.645$

The reason we are obtaining critical values for $\frac{\alpha }{2}$ instead of that of $\alpha$ is because $\alpha$ represents the area under the normal curve where the confidence level 1 - $\alpha$ (90%) did not cover which include both the left and right tail while $\frac{\alpha }{2}$ is just considering the area of one tail which is what we required calculate the margin of error