9514 1404 393
Answer:
in Step 2, the student added 4 on the right and subtracted 4 on the left
Step-by-step explanation:
In Step 2, the student subtracted 4 on the left side of the equation, but incorrectly added 4 on the right. (The same operation needs to be performed on both sides of the equation.) The correct step 2 would be ...
-8x = -32 . . . . correct step 2
x = 4 . . . . . correct step 3
Answer:
Hi,
Step-by-step explanation:
PR²=PQ²+QR²-2*PQ*QR*cos(51°)
=15²+12²-2*15*12*cos(51°)
=142,444659....
PR=11.9350...
PQ²=QR²+PR²-2*QR*PR*cos(R)
cos(R)=(12²+142.444...-15²)/(2*12*11.9350...)=0,21451112....
angle R=77,61315...°≈77.6°
angle P=180°-51°-77.6°≈51,4°
I am thinking B, because if you think about it you would write it as x+ 8 because he first got x and then he added 8 more to that x and then they tell you how much they recived in those days if you multiply the like in answer D you will get to much and their askign for the total of teh 2 days so you would add them,... Hope this helped
Answer:
its B
Step-by-step explanation:
Answer:
21
Step-by-step explanation:
3 (7) = 21
