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VARVARA [1.3K]
3 years ago
14

Please please please help answer number 6!!!!!!

Mathematics
1 answer:
Virty [35]3 years ago
6 0
The answer i would have is -1.
Hope I helped if i did please give Brainliest!
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What formula is used to show lines are parallel<br>to one another?​
larisa86 [58]

Answer:

To figure out if 2 lines are parallel, compare their slopes. You can find the slope of a line by picking 2 points with XY coordinates, then put those coordinates into the formula Y2 minus Y1 divided by X2 minus X1. Calculate the slope of both lines. If they are the same, then the lines are parallel.

Step-by-step explanation:

To figure out if 2 lines are parallel, compare their slopes. You can find the slope of a line by picking 2 points with XY coordinates, then put those coordinates into the formula Y2 minus Y1 divided by X2 minus X1. Calculate the slope of both lines. If they are the same, then the lines are parallel.

3 0
3 years ago
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Which value, when placed in the box, would result in a system of equations with infinitely many solutions?
cupoosta [38]

Answer:

answer it s 12. just put the value

5 0
3 years ago
A cashier earns $7 an hour. If x is the number of hours worked, which function represents the cashier’s earnings?
r-ruslan [8.4K]

well first u would have to find 7 and add of times 7X


8 0
3 years ago
What is Simplify 90/105
Shalnov [3]
The correct answer is \frac{6}{7}  or <span>0.857

How I got the answer:

What you do is </span><span>Simplify 90/105 divide by 5=18/21 divide by 3=6/7</span>
5 0
3 years ago
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In the △PQR, PQ = 39 in, PR = 17 in, and the altitude PN = 15 in. Find QR.
Licemer1 [7]

Answer:

So, this triangle PQR can be broken into two right triangles, PNQ and PNR, with legs PQ = 39, PN =15, and QN = ? and PR = 17, PN = 15, and NR =? respectively.


Let's solve for what is easier first:

Since we know that 5-15-17 is a Pythagorean triplet, we can infer that NR is 5....like I said earlier, it is a right triangle, so this guess holds true.


Here comes the interesting part:

Now, we have one part of QR, which is QN.

The other part can be solved by using the Pythagorean theorem.

It is (39^2-15^2)^(1/2)..which gives you 36, the square root of 1296, which happens to be the difference between the squares of 15 and 39.

SO, QR = QN + NR

5+36 = 41

QR = 41.

Hope this helps!

3 0
3 years ago
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