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Wewaii [24]
2 years ago
15

Please help and answer all questions from the attachments. Will give brainliest to correct answers from attachments.

Mathematics
2 answers:
Phantasy [73]2 years ago
8 0

Answer:

See attachments

Step-by-step explanation:

Hope this helps.

Nikitich [7]2 years ago
3 0

Answer:

See attachments

Step-by-step explanation:

Hope this helps.

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A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function?
lara [203]

Answer:

y=7x

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

we have the points (2,14) and (4,28)

Find out the constant of proportionality k

k=y/x                      

For (2,14) ----> k=14/2=7

For (4,28) ----> k=28/4=7

so                              

the value of k=7            

therefore                                          

The equation  is                                                    

y=7x                

3 0
2 years ago
Read 2 more answers
How many 7-digit numbers are there where all the digits are different and in increasing order? for example, the numbers 1345689
frutty [35]
For this problem,we use the Fundamental Counting Principle. You know that there are 7 digits in a number. In this principle, you have to multiply the possible numbers for every digit. If the first number cannot be zero, then there are 9 possible numbers. So, the value for the first digit is 9. The second digit could be any number but less of 1 because it was used in the 1st digit. So, that would be 10 - 1 = 9. The third digit must be the value in the second digit less than 1. That would be 9 - 1 = 8. And so on and so forth. The solution would be:

9×9×8×7×6×5×4 = 544,320 7-digit numbers
4 0
3 years ago
Mr. Nicholas invested $4,250 into an account that pays 3.5% interest, compounded annually. How much will Mr. Nicholas’s investme
Lina20 [59]

Answer:

$5596.44

Step-by-step explanation:

$4250*(1.035)^8= $5596.44

3 0
3 years ago
7) Diego travels from Odessa to el Paso approximately 300 miles apart
bulgar [2K]

Answer:

≈3hrs 45mins

Step-by-step explanation:

d=300 miles

s=80mph

Formula: distance/speed=time

Using the formula:

300/80=3.75 hours

0.75 hours=45mins

(To work that out ^) 0.75=x/60

∴ 60*0.75=45mins

Solution: 3hrs 45mins

3 0
3 years ago
What times 27equals 216
svlad2 [7]
27 time 8 equals 216
...
216 divided by 27 equals 8
3 0
3 years ago
Read 2 more answers
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