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Aleksandr-060686 [28]
3 years ago
14

HELP I AM CONFUSION CAUSE IM DUMB AND MISSED SCHOOL

Mathematics
2 answers:
lana [24]3 years ago
6 0

Answer: The answers are...

Step-by-step explanation:

2 = 14

-6 = -42

4 = 28

-9 = -63

-3 = -21

Hope this helped! If you need an explanation of how those are the answers, I'm more than happy to explain! :)

mash [69]3 years ago
4 0

Answer:

14,-42,28,-63,-21

Step-by-step explanation:

Plug the x value into y=7x.

example:

y=7(2), this equals 14.

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The difference of four times a number and seven is ten more than the number.
frozen [14]
Can you elaborate more please
5 0
3 years ago
Ava buys 3.5 pounds of strawberries for $2.99 per pound. How much does she spend?
Arisa [49]

Answer:

C

Step-by-step explanation:

well first you want to multiply 3.5 times 2.99 which gives you 10.465 and you round that it should be 10.47

3 0
3 years ago
Y + 2 =1/2(x – 3).<br><br> Please help ?!?
Sidana [21]

first, spread the parenthesis. y+2=1/2x-1.5

second, add 1.5 to both sides. y+3.5=1/2x

third, multiply by 2. 2y+7=x

if you are solving for y, do not do the third step, instead, subtract by 3.5. y=x-3.5

hope this helps!

ANSWER: x=2y+7 or y=x-3.5

6 0
3 years ago
Read the following excerpts from the New York Times (December 17, 1996) article Chance of Heart Attack Increases for Those Who S
nataly862011 [7]

Answer:

1. B

2. A

3. A

4. A

Step-by-step explanation:

Hello!

The study claimed that subjects who suffer depression are more likely to have a heart attack than those who are not depressed.

1551 persons were interviewed as part of the experiment and classified according to their answers in two groups "suffered depression" and "didn't suffer depression"

Afterward, the researchers looked up the medical history of all 1551 subjects and recorded how many of them had heard issues.

1.

An observational study is one where the researcher only determines the variables he wants to study without controlling or influencing any factor of the population of interest. Because there is no interference from the researchers, there is a high risk that confounding factors may affect the conclusions of it. These studies are usually precursors to experimental tests, it allows the researcher to have an idea of the association between the two variables but you cannot establish causal relationships from them.

This is an example of an observational study, the researcher merely recorded the variables of interest without interfering with any aspects that may influence them. (For example diet or exercise habits of the subjects)

2. and 3.

The objective of the study is to determine if "depression" causes "disposition to heart attacks"

The explanatory variable is "depression status of the subject" since it is what is suspected to influence over the heart condition of said subject and "heart attack status" is the response variable.

4.

Of the 1551 subjects originally studied, 444 were classified as depressed, of these 27 had heard attacks. You can calculate the "proportion of subjects that suffered depression and had heart attacks" as:

p': 27/444= 0.06 ⇒ 6%

Since this value was obtained from the sample, it is an estimation of the population parameter, also called statistic.

I hope it helps!

4 0
2 years ago
Ali’s wage was increased from 120$ to 132$ per week. find the increase as fraction on its simplest form, as a percentage of the
Anettt [7]
Well the increase is 132/120. Simplify by dividing 12 from the numerator and the denominator, you should get 11/10.
11/10 is also 110%
7 0
2 years ago
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