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HELP PLS MATH HELP ASAP CORRECT ANSWER ONLY PLS

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

Answer 2

Answer:

Answer:

Step-by-step explanation:

3(2)+2=8

3(3)+2=11

3(4)+2=14

3(5)+2=17

3(6)+2=20

Sum=70

Related Questions

A package of 6 pairs of insulated socks costs $34.14. What is the unit price of the pairs of socks?
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An object is translated by (x-2, y-6). If one point in the pre-image has the coordinates (-3, 7), what would be the coordinates of its image? (-1,7) O (-5,1) O(-9,5) O (-1, 13)
I NEED HELPPP ASAPPPPP I WILL GIVE BRAINLIESTTTT!!!!!!a function is a binary relation between two sets that associates every element of the first set to exactly one element of the second set.
Which of the following describes the roots of the polynomial function f (x) = (x + 2) squared (x minus 4) (x + 1) cubed?–2 with multiplicity 2, 4 with multiplicity 1, and –1 with multiplicity 3–2 with multiplicity 3, 4 with multiplicity 2, and –1 with multiplicity 42 with multiplicity 2, –4 with multiplicity 1, and 1 with multiplicity 32 with multiplicity 3, –4 with multiplicity 2, and 1 with multiplicity 4

Suppose a regional computer center wants to evaluate the performance of its memory system. One measure of performance is the average time between failures of its disk drive. To estimate the value, the center recorded the time between failures for a random sample of 45 drive failures. The sample mean has been computed to be 1,762 hours and the sample standard deviation is 215. Estimate the true mean time between failures with a 90% confidence interval? Interpret the confidence interval.

Answers

Answer:

The 90% confidence interval is (1408.325 hours, 2115.675 hours).

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = (1-0.9)/(2) = 0.05$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.05 = 0.95$ , so $z = 1.645$

Now, find M as such

$M = z*s$

In which s is the standard deviation of the sample. So

$M = 1.645*215 = 353.675$

The lower end of the interval is the mean subtracted by M. So it is 1762 - 353.675 = 1408.325 hours.

The upper end of the interval is the mean added to M. So it is 6.4 + 0.3944 = 2115.675 hours.

The 90% confidence interval is (1408.325 hours, 2115.675 hours).

1 is 25% of what number?

Answers

Answer:

25% of 4 is 1.

Step-by-step explanation:

100% of 4 is 4, therefore 25 percent of 4 equals 1.

50 points!!What are the factors of the following polynomial: x^2−x−56
Do not include any spaces in your answer. Use parentheses to separate your factors. A sample answer might be (x+1)(x-4).

Answers

Answer:

(x-8) (x+7)

Step-by-step explanation:

x^2 -x-56

We want to factor this problem.

What two numbers multiply to negative 56 and add to -1

-8 *7 = -56

-8+7 = -1

We can use -8 and 7

(x-8) (x+7)

Check:

FOIL

first: x*x =x^2

outer: 7x

inner:-8x

last: -8*7 = -56

Add this together

x^2 +7x-8x -56 = x^2 -x-56

Help asap i will get yelled at =( this is going to give yoyu 42 points

Answers

Answer: first pic: true. second pic: is D. third pic: false. forth pic: C.

Step-by-step explanation:

Answer:

24+24=48

Step-by-step

24+24=48

A hypothesis will be used to test that a population mean equals 7 against the alternative that the population mean does not equal 7 with known variance σ. What are the critical values for the test statistic Upper Z Subscript 0 for the significance level of 0.04? Round your answer to two decimal places (e.g. 98.76).

Answers

The upper critical value z₀ of the hypothesis is 2.05.

How to explain the hypothesis?

From the information given, it can be noted that this is a two-sided test. In this case, the critical values are the values of z that determine the boundaries of whether one should reject the null hypothesis or shouldn't.

Since the significance level is 0.04, it simply implies that there is a p-value of 0.02. Then, the next thing is to check the normal distribution table, and this corresponds to the z value of 2.05.

In conclusion, the correct option is 2.05.

Learn more about hypothesis on:

brainly.com/question/606806

Answer:

The upper critical value z₀ is 2.05.

Step-by-step explanation:

For a two-sided test like this (the mean can be significantlt greater or smaller than 7 to reject the null hypothesis), the critical values are the values of z that determine the boundaries of rejecting or not the null hypothesis.

If the significance level is 0.04, it means that there is a P-value of 0.02 for z larger than the upper critical value z₀.

$P(z>z_0)=\alpha /2= 0.02$

If we look up in a normal distribution table, the z value that corresponds to this probability is z=2.05.

At a sale this week, a suit is being sold for $235.60. This is a 62% discount from the original price.What is the original price?

Answers

Answer:

$620

Step-by-step explanation:

（1-62%）X=235.6

X=235.6/38%

X=620

The original price is $620