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irga5000 [103]
2 years ago
13

Please help!! ................................

Mathematics
1 answer:
lozanna [386]2 years ago
7 0

Step-by-step explanation:

.......

.................

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Find the point-slope equation for the line that passes through the points (30,2) and (15,-28) use the first point in your equati
Sladkaya [172]

Answer:

y=2x-58

Explanation:

In order to write our point-slope formula (y=mx+C format), we first need to figure out the slope (m). To figure out the slope, we divide the change in y by the change in x between the two points (rise/run). The rise is 30 (2-(-28)) and the run is 15 (30-15). Therefore the slope is 2 (30/15)

This gives us:

y=2x + c

Now to figure out C (which will be the y-intercept of the graph) we substitute in the values from one of the points. So our x=30 and our y=2:

2=2(30) + c

2=60+c

2-60=c

-58=c

So now we know that our C (constant) is - 58.

Hence our point-slope formula is:

y=2x-58

Which you can test with the other point:

-28=2(15) - 58

Hope this helped!

4 0
4 years ago
Cali bought a sweater priced a $60. If the sales tax is 9% what is the total purchase price of the sweater?
forsale [732]

Answer:

65.4

Step-by-step explanation:

60*.09 = 5.4

60+5.4 = 65.4

8 0
3 years ago
A theater is selling movie tickets. The first night, 19 Senior tickets and 57 Adult tickets were sold. The second night, 20 Seni
Butoxors [25]

Answer:

The theater sold a higher ratio of Senior tickets to Adult tickets on the first night.

Step-by-step explanation:

Rate of senior tickets to adult tickets:

Can also be interpreted as the percentage of senior tickets, out of the number of total tickets, which is the number of senior tickets multiplied by 100% and divided by the number of total tickets.

The first night, 19 Senior tickets and 57 Adult tickets were sold.

19 out of 19 + 57 = 76. So

19*100%/76 = 25%

The second night, 20 Senior tickets and 62 Adult tickets were sold.

20 out of 20 + 62 = 82. So

20*100%/82 = 24.39%

25% > 24.39%, so the theater sold a higher ratio of Senior tickets to Adult tickets on the first night.

4 0
3 years ago
Find the slope given the points (2, −7) and (−1,<br> 6).
lesya [120]

Answer:

The Slope= -13/3

y-intercept= (0,5/3)

Step-by-step explanation:

m= change in y/change in x

m= y2-y1/x2-x1

m=6-(-7)/ -1-(2)

m=-13/3

4 0
3 years ago
A line of best fit is f(x) ≈ −0.86x + 13.5 for the set of points in the table
Maurinko [17]

Answer: -2

Step-by-step explanation:

Because it is

7 0
3 years ago
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