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Anna35 [415]
1 year ago
9

Which is the correct answer ?????

Mathematics
1 answer:
Damm [24]1 year ago
6 0
<h3>Answer:  True</h3>

Explanation:

Technically you could isolate any variable you wanted, from either equation. However, convention is to pick the variable in which isolating it is easiest, and most efficient.

The key thing to look for is if there's a coefficient of 1. This is found in the second equation for the y term. Think of -4x+y = -13 as -4x+1y = -13. Due to the coefficient of 1, when solving for y we won't involve messy fractions.

If you were to solve for y, then you'd get y = 4x-13, which is then plugged in (aka substituted) into the first equation. That allows you to solve for x. Once you know x, you can determine y.

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Help I’m very confused and was wondering if anyone is willing to help.
beks73 [17]

Answer:

57°

Step-by-step explanation:

LHS angle=RHS angle=57° (vert. opp angles)

5 0
3 years ago
Could I get some help with this question?
sesenic [268]

Answer:

But where is the question???

5 0
3 years ago
∠A is an acute angle in a right triangle.
valentina_108 [34]
Cosine = adjacent / hypotenuse
So that means the adjacent side = 15 and the hypotenuse = 17
By Pythagorean Theorem, we know that
opposite^2 = hypotenuse^2 - adjacent^2
opposite^2 = 17^2 - 15^2
opposite^2 = 289 - 225
opposite^2 = 64
opposite side = 8

sine = opposite / hypotenuse
So,
sine A = 8 / 17


3 0
3 years ago
Keith’s gas tank is 1/3 full. After he buys 2 gallons of gas, it is 1/2 full. How many gallons can Keith’s tank hold?
madam [21]
It will be 3 cuz why not lol
6 0
3 years ago
Read 2 more answers
Which equations represent the line that’s passes through points (1,-5) and (3,-17)
Nutka1998 [239]

(1,-5)(3,-17)

slope = (-17 - (-5) / (3 - 1) = - 12/2 = - 6


y = mx + b

slope(m) = -6

use either of ur points...(1,-5)...x = 1 and y = -5

now we sub and find b, the y int

-5 = -6(1) + b

-5 = -6 + b

-5 + 6 = b

1 = b

so ur equation is : y = -6x + 1....or 6x + y = 1

Hope this helps!

3 0
3 years ago
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