15-t + 8t = -13
15 + 7t = -13
7t = -13-15
7t = -28
t = -4
4a + 11-a = 2
3a = 2-11
3a = -9
a = -3
Answer:
It's correct!!
Step-by-step explanation:
In the photo 1,10 is placed correctly so is 9,6!!
18 times 4 = 72
Because 5000 times 4 = 20,000
The change in temp. is -72degrees
So the area of one triangle is (3.5 x 9 ) 31.5 , times that by 4 gives us 126 , now add that to 7 squared which is 126 + 49 . the answer is 175 cm^2<span />
