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MaRussiya [10]
3 years ago
6

Pls help me, i'm giving 30 points and brainliest.

Mathematics
1 answer:
podryga [215]3 years ago
8 0

Answer:

This is a 10 percent increase

Step-by-step explanation:

Last week he spent 10 hours

This week 11 hours

percent increase = (new - original )/original * 100 percent

                             = (11-10)/10 * 100 percent

                             = 1/10 * 100 percent

                             = 10%

This is a 10 percent increase

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Part A
zavuch27 [327]

Answer:  Yes

Step-by-step explanation:  It is because it is just a bigger version of it. B is half of C, F is half of E and The A is in both diagrams.

7 0
3 years ago
Using the graph below, find r(-3) please
ruslelena [56]

Considering the given graph, it is found that the numeric value of the function r(x) at x = -3 is of 2.

<h3>How to find the numeric value of a function given it's graph?</h3>

The numeric value of a function is the value of y for the given value of x, hence, we have to look at the value of x on the horizontal axis, and verify the equivalent value of y on the vertical axis.

In this problem, when the horizontal axis is of x = -3, the vertical axis is of y = 2, hence the numeric value of the function r(x) at x = -3 is of 2.

More can be learned about the numeric value of a function at brainly.com/question/14556096

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7 0
2 years ago
2x2 + 6x - 20 = 0<br> factor
vitfil [10]
Would it be -10 though
4 0
3 years ago
Read 2 more answers
Assume that a hypothesis test of the given claim will be conducted. Identify the type I or type II error for the test. A consume
Ivan

Answer:

Type I error: Concluding that mean mileage is less than 32 miles per hour when actually it is greater than or equal to 32 miles per gallon.

Step-by-step explanation:

We are given the following in the question:

Hypothesis:

Mean mileage for the Carter Motor​ Company's new sedan

We can design the null hypothesis and alternate hypothesis as:

H_{0}: \mu \geq 32\text{ miles per gallon}\\H_A: \mu < 32\text{ miles per gallon}

Type I error:

  • It is the false positive error.
  • It is the error of rejection a true hypothesis.

Type II error:

  • It is the false negative error.
  • It is the non rejection of a false null hypothesis.

Thus, type I error for the given hypothesis is concluding that mean mileage is less than 32 miles per hour when actually it is greater than or equal to 32 miles per gallon.

Type II error would be concluding that mean mileage is greater than or equal to 32 miles per gallon when actually it is less than 32 miles per gallon.

3 0
3 years ago
4a. If (11+x) is positive, but (4+x) is negative, what is one number that x could be?
sattari [20]

Answer:

Step-by-step explanation:

x has to be equal to or less than a -5 to get (4 + x) to be a negative number.

x has to be equal to or greater than -10 for (11 + x) to be a positive number.

Therefore, any number between -10 and -5 will work.

8 0
3 years ago
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