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7nadin3 [17]
3 years ago
7

Can someone pleaseeee help me with this?! I really need the help so hurry please!

Mathematics
1 answer:
Genrish500 [490]3 years ago
3 0

Answer:

idk im not very smart

Step-by-step explanation:

maybe if you go and talk to teacher they will help

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Find the value of x.<br> 105° /15xº
pogonyaev

Answer:

X=7

Step-by-step explanation:

I am so sorry if this is not correct. I don´t know why there are 0s next to each number. I hope this helped. Again, I am sorry if this is incorrect

8 0
2 years ago
Subtraction and division are derived from which principal operations
melisa1 [442]
Subtraction and division are from the principal operations of PEMDAS. PEMDAS stands for parentheses, exponents, multiply and divide, add and subtract and thats it! Hope this helps and remember to mark as brainliest!
8 0
3 years ago
Please help me....<br><br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B22%7D%7B7%7D%20%20%20%5Cdiv%20%20%5Cfrac%7B22%7D%7B7%7D
Greeley [361]
<h3><u>Answer</u> :</h3>

\sf \dashrightarrow \dfrac{22}{7} \div \dfrac{22}{7}

\sf \dashrightarrow \dfrac{22}{7} \times \dfrac{7}{22}

\sf \dashrightarrow \dfrac{\cancel{22}}{\cancel{7}} \times \dfrac{\cancel{7}}{\cancel{22}}

\sf \dashrightarrow 1 \times 1

\sf \dashrightarrow 1

<h3>Hence, answer is 1.</h3>
4 0
2 years ago
Read 2 more answers
Develop an estimate for each of the following situations.(at) The cost of a 500-mile automobile trip, if gaso-line is $4 per gal
Olin [163]

Answer:

The answer is below

Step-by-step explanation:

develop an estimate for each of the following situations.

(a) The cost of a 500- mile automobile trip, if gasoline is $4.00 per gallon, vehicle wear and tear is $0.65 per mile, and our vehicle gets 25 miles per gallon.

(b) The total number of hours in the average human life, if the average life is 75 years.

(c) The number of days it takes to travel around the equator using a hot air balloon, if the balloon averages 100 miles per day, the diameter of the earth is ~4,000 miles.

Solution:

a) The total trip = 500 mile

Cost of wear and tear = $0.65 per mile = $0.65 * 500 mile = $325

25 miles takes 1 gallon of gasoline at a cost of $4 per gallon

Cost of gasoline = $4 per gallon * 500 miles / 25 miles per gallon = $80

cost of a 500-mile automobile trip = Cost of wear and tear + Cost of gasoline = $325 + $80 = $405

b) Average life of human = 75 years.

1 year = 365 days, 1 day = 24 hours

Average life of human in hours = 75 years * 365 days * 24 hours =657000 hours

c) Diameter of earth = 4000 miles

Distance of equator = diameter of earth = 4000 miles

100 mile per day

number of days for the balloon to travel round the earth = 4000 miles / (100 mile per day) = 40 days

5 0
2 years ago
Arthur is interested in the effects of sleep deprivation usage on number of calories consumed. He asks a group of 20 college stu
Greeley [361]

Answer:

Arthur knows that there is a difference among the groups somewhere, but he does not know where

Step-by-step explanation:

An ANOVA test is a test to find out whether the results of an experiment or a survey are significant or not. ANOVA test helps the researcher or the experimenter to decide whether they reject the null hypothesis or accept the alternate hypothesis in the experiment. In ANOVA test, the experimenter wants to find if there is a difference between them or not.

In the context, Arthur is doing a study and he wishes to find out effect of a sleep deprivation on the number of the calories that people consumed. He collects some data from his subject group from the sleep lab and after running the ANOVA test, he finds out that he can reject the null hypothesis. So on this basis, Arthur knows that there is some basic difference among the members of the group somewhere, but he does not know where actually the difference is.

3 0
3 years ago
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