What numbers add up to 2 and multiply to get -15?
1 answer:
Set up 2 equations
A) x + y = 2
B) x * y =-15
We can change equation B into x = -15/y and substitute this into equation A
-15/y + y = 2
-15 + y^2 = 2y
y^2 -2y -15 =0
Factoring
(y +3) * (y-5) = 0
y = -3 and y =5
Then solve for x
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I think the answer is A
hope that helps!
Answer:
B
Step-by-step explanation:
Dependent variable: the one being measured
Answer:
B
Step-by-step explanation:
toookt the test dude
X + x + 12 + x - 9 = 180
3x = 180 - 12 + 9
3x = 168 + 9
3x = 177
x = 59 degrees
Angle 1 = 59 degrees
Angle 2 = 59 + 12 = 71 degrees
Angle 3 = 59 - 9 = 50 degrees
Answer is 73 over 36...in a decimal its 2.03
