Answer:
a=-4, b=-4. (-4, -4).
Step-by-step explanation:
-3a+7b=-16
-9a+5b=16
-------------------
-3(-3a+7b)=-3(-16)
-9a+5b=16
---------------------------
9a-21b=48
-9a+5b=16
------------------
-16b=64
b=64/-16
b=-4
-3a+7(-4)=-16
-3a-28=-16
-3a=-16+28
-3a=12
a=12/-3
a=-4
Answer:
120
Step-by-step explanation:
11+5+52(12−10)
=16+52(12−10)
=16+(52)(2)
=16+104
=120
This is a right triangle. If the triangle were laid down, on an end, a right angle would be visible.
Answer:
21
Step-by-step explanation:
Answer:
y=4x+3
Step-by-step explanation:
Find the intercept - that is 3
Find the slope - that is 4
