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3 years ago

Which statements are true about the ordered pair (−1, 5) and the system of equations?

2 answers:

Rudiy273 years ago

7 0

An ordered pair (x,y) is a solution to a system of equations if it makes all the equations true.
Let's check whether (–1, 5) makes the equations true.
Plugging –1 in the first equation for x and 5 in for y, we get
–1 + 5 = 4: TRUE
Plugging –1 in the second equation for x and 5 in for y, we get
–1 – 5 = –6: TRUE

Since it makes both the equations true, it's a solution to the system of equations. So the answer choice is D, the 4th one.

Elodia [21]3 years ago

6 0

Answer:

you answer would be A,B,D there all the answer u cant just have one also I

just took the test im from k12

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We chose the negative value of the cosine because of the condition where cot y > 0. Otherwise, choosing the positive root will yield a negative cotangent value. Now that we know the sine and cosine of y, we can now solve for the tangent:

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