Please help! I really need help.

Answer:

the answer is option B

Step-by-step explanation:

Answer:

15x = 60

Step-by-step explanation:

Hi,

We know he bought 15 shirts for an x amount of dollars, so 15 times however much they cost is 15x and the total is 60.

hope this helps :)

Answer:

4/12+3/12=7/12

Step-by-step explanation:

just took the quiz

Explanation:

When asking/answering questions like this, a survey is involved. It could be multiple choice or fill in the blank. Multiple choice may be the best way because it's easier to compare data results when you have only a few options. It also gives the computer an easier time too.

We aren't conducting an experiment since the researcher is not directly affecting the people, and instead letting them answer the questions without intervention. Also, note how we don't have two groups of treatment vs control. This is another indication we don't have an experiment.

An observational study is not being done here either. Yes the researcher is observing the survey results, but s/he is not making notes on the individuals before the survey is conducted (ie before the questions are asked). An example of an observational study is having the researcher make a tally of students' hair color. The researcher simply looks at each student, marks the correct tally, and doesn't need to ask the student a question. So you can see that the interactive question/answer portion is not present in an observational study.

The phrasing "random trial" is not a study type. When you hear "random trial" in the news, maybe for a new drug being developed, the news report is implying heavily that an experimental study had been done. This is true with all drug trials. One group is the treatment group that gets the actual drug, while the control group gets a fake drug. The control group thinks they get the actual drug, which is important because if they knew it was fake, then it would invalidate the study. I recommend researching the placebo affect for more information. The two group's results are then computed to see if the drug did in fact cause a change in the subjects or not. You would see this if there's a significant difference between the treatment and control group. Anyway, the "random trial" is not a study type but rather an aspect of an experimental study. It's possible your teacher put this in here to throw off students.

.

a²+25²=31²

31²-25²=a²

961-525=a²

a²=336

√a=√336

a=18.33

Answer:

there in not enough information in your question to get an answer

Answer:

Part 1: Jeff Part 2: 130

Step-by-step explanation:

Answer:

The angle is in the third quadrant.

Answer:

C

Step-by-step explanation:

Step-by-step explanation:

i hope you find tou calculator but the answer is 555

40.54

Percentage Calculator: 15 is what percent of 37? = 40.54.

Answer:

Your answer will be 1,330 I hope this helps

Answer:

my answer is (100+3300=3400

Answer:

48

Step-by-step explanation:

Answer: −17

Step-by-step explanation: ez

Answer:

✓10/10

Step-by-step explanation:

sinA = 1/✓10

Rationalize the denominator by multiplying by ✓10:

sinA = 1✓10/✓10✓10

sinA = ✓10/10

Answer:

Reggie collected 504 cans and bottles.

Step-by-step explanation:

40%=.40

360*.40=144

360+144=504

Answer:

?

Step-by-step explanation:

Answer:

is going to give you a decimal as then you divide it by 2 and then multiply that number by 4 hope this helps

Step-by-step explanation:

Answer:

is going to give you a decimal as then you divide it by 2 and then multiply that number by 4 hope this helps

Step-by-step explanation:

Answer:

12 square feet

Step-by-step explanation:

A=Area

b=Base

h=Height

To find the area of an triangle, you use the formula A=1/2bh

you plug in the the area and the height to get:

48=1/2xbx8

you do the maths and you get

b=12

1Answer:

12 sqft

Step-by-step explanation:

Answer:

3.61

Step-by-step explanation:

Answer:

A. then GDP will be higher, but consumption spending will be unchanged.

Step-by-step explanation:

GDP is the monetary value of all the finished goods and services produced within a country in a specific time period by the country's citizens and foreigners.

It is primarily used to assess the health of a country's economy and it is calculated by adding the following figures together:

The burger and fries are services provided by the restaurant, which added value to the economy by increasing the GDP.

However, the consumption spending will not be affected because you would have eaten at home had you not bought the meal at the restaurant.

Therefore, the correct option is A " then GDP will be higher, but consumption spending will be unchanged".

Answer:

69

Step-by-step explanation:

30+30=60

4+5=9

60+9=69!

Answer:11

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

its 11 because 66 divided by 6 = 11

Answer:

230.74

Step-by-step explanation:

Answer:

x = 63.28°

Step-by-step explanation:

A = 33°

a = 175 mm

C = x

c = 287 mm

Use the Law of Sines to find x

Thus:

[tex] \frac{a}{sin(A)} = \frac{c}{sin(C)} [/tex]

Plug in the values

[tex] \frac{175}{sin(33)} = \frac{287}{sin(x)} [/tex]

Cross multiply

[tex] 175*sin(x) = 287*sin(33) [/tex]

Divide both sides by 175

[tex] sin(x) = \frac{287*sin(33)}{175} [/tex]

[tex] sin(x) = 0.893208017 [/tex]

[tex] x = sin^{-1}(0.893208017) [/tex]

x = 63.28° (2 decimal places)

Hello there.

Your answer is going to be (8, -5).

Answer:

-5 -8

Step-by-step explanation:

1)f(×)=3*=f(×)=×-1 0 1=0.23

Answer:

Step-by-step explanation:

Answer:i would say C ADHAKFFA

Step-by-step explanation:

Answer:

d. At least 75%

Step-by-step explanation:

Since nothing is known about the distribution, we use the Chebyshev Theorem.

Chebyshev Theorem

The Chebyshev Theorem can also be applied to non-normal distribution. It states that:

At least 75% of the measures are within 2 standard deviations of the mean.

At least 89% of the measures are within 3 standard deviations of the mean.

An in general terms, the percentage of measures within k standard deviations of the mean is given by [tex]100(1 - \frac{1}{k^{2}})[/tex].

In this problem, we have that:

Mean = 80, standard deviation = 5.

What percentage of test-takers scored better than the trainee who scored 70?

70 = 80 - 2*5

So 70 is two standard deviations below the mean.

Due to the Chebyshev Theorem, we know that at least 75% of the measures are within 2 standard deviations of the mean, between 70 and 90, which means that this percentage is at least 75%, and the correct answer is given by option d.