MATHEMATICS COLLEGE

7th grade math help me plzzz

Answers

Answer 1

Answer:

Answer:

a. -7 + 3

b. draw 7 negatives + 7 positives

Step-by-step explanation:

Answer 2

Answer:

Answer:

3.a) -7 + 3

3.b) 4

I hope this helps!

Related Questions

You are to take a multiple-choice exam consisting of 100 questions with 5 possible responses to each question. Suppose that you have not studied and so must guess (select one of the five answers in a completely random fashion) on each question. Let x represent the number of correct responses on the test. (a) What is your expected score on the exam? (Hint: Your expected score is the mean value of the x distribution.) (b) Compute the variance and standard deviation of x. Variance = Standard deviation =
Drag each question to the correct location on the table. Classify the questions as statistical or not statistical.
Need help on this not sure about it
Solve for XHello, my daughter needs help with Trigonometry. I was never very gifted at math, and cannot remember too much about this subject. Please Help!
If the true mean is 50 and we reject the hypothesis that μ = 50, what is the probability of Type II error? Hint: This is a trick question.

Suppose Mike has a dresser with 3 tan pants, 5 jeans, 2 black pants, and 3 gray pants. He also has 2 brown shoes, 3 black shoes, and 2 blue shoes. If he randomly chooses a pair of pants and shoes, what is the probability that both are black? Give your answer as an exact fraction and reduce the fraction as much as possible.

Answers

Answer:

Probability of choosing a black pair of pants and shoes $= (6)/(91)$

Step-by-step explanation:

Given:

Total number of pants Mike has = $\textrm{ 3 tan pants + 5 jeans + 2 black pants + 3 gray pants = 13 pair of pants}$

Probability of randomly choosing a pair of black pants = $\frac{\textrm{Number of Black pants}}{\textrm{Total number of pants}} = (2)/(13)$

Total number of shoes Mike has = $\textrm{ 2 brown shoes + 3 black shoes + 2 blue shoes = 7 pairs of shoes}$

Probability of randomly choosing a pair of black shoes = $\frac{\textrm{Number of Black shoes}}{\textrm{Total number of shoes}} = (3)/(7)$

Probability of choosing a black pair of pants and shoes = $(2)/(13)* (3)/(7) = (6)/(91)$

1) How do you describe Ana in the selection?

Answers

Answer:

she develops a fair and healthy relationship with her classmate but also she elected the class president at their school

Step-by-step explanation:

vote me as the brainliest

How much wrapping paper would you need to cover a rectangularbox that is 19 inches by 12 inches by 3 inches if you need 10% more
wrapping paper than the surface area of the box? Give your answer
to the nearest square inch.

PLEASE HELP T-T

Answers

Step-by-step explanation:

a box (like a "deformed" die) has 6 sides.

and in case of such a rectangular box there are 3 pairs of equal sides.

the area of each side is a rectangle.

top and bottom : 19×12 times 2

front and back : 19×3 times 2

left and right : 12×3 times 2

so, we get

19×12×2 + 19×3×2 + 12×3×2 = 642 in²

and now, we need 10% more.

10% = 642/10 = 64.2 in²

the total is then

642 + 64.2 = 706.2 ≈ 706 in²

A newspaper’s cover page is 3/8 text, and photographs fill the rest. If 2/
5 of the text is an article about
endangered species, what fraction of the cover page is the article about endangered species