Answer:
A.
Step-by-step explanation:
x - 9 = 0
+ 9 + 9
---------------
x = 9
(0,1) and (2,5) because that is where both of the systems meet
Answer:
x=4
y=3
Step-by-step explanation:
-0.8x+1.3y=0.7,3.2x−2.5y=5.3
-0.8x+1.3y=0.7
x=−1.25(−1.3y+0.7)
x=1.625y−0.875
3.2(1.625y−0.875)−2.5y=5.3
5.2y−2.8−2.5y=5.3
2.7y−2.8=5.3
2.7y=8.1
y=3
x=1.625×3−0.875
x=<u> </u><u>39-7</u><u> </u>
8
x=4
Answer:
Vector PQ = 48 deg
Vector QP = -PQ = 48 + 180 = 228 deg
Note that 228 is 48 deg below the -x (180) axis
-3x(5x + 1) = -15x^2 - 3x