Answer:
10 ??
Step-by-step explanation:
Answer:
-17x² + 3x
Step-by-step explanation:
(-8x² + 3) + (-9x² + 3x - 3)
-8x² + 3 - 9x² + 3x - 3
-17x² + 3x
Answer:
-9
Step-by-step explanation:
The triangle has two sides that are the same, so it is an isosceles triangle. Therefore, the base angles are the same.
Angles of a triangle add up to 180°, so:
70 + (x + 64) + (x + 64) = 180
70 + 2x + 128 = 180
2x = -18
x = -9
If you divide by 7 on both sides to get rid of t, you get -5!
Answer:28.7 minutes
Step-by-step explanation: