-x = 4 - 2
-x = 2
x = -2
Explanation:
To find variable x we need to move positive 2 to right hand side which will become negative 2 and when 4 is substrated from 2 we get positive 2 and to make variable x positive we need to take negative sign to right hand side.
Answer:
60n + 15 = 90n+12
Step-by-step explanation:
i think its this but not sure
<span>the answer is c. this is the correct answer because the attack on Pearl Harbor killed many Americans, and was the event that caused the US to finally enter the world war</span>
Answer:
112
Step-by-step explanation:
find LCM
4,7,8,16=112
Answer:
The ball will be able to reach the 16 ft.
Step-by-step explanation:
In order to calculate if the ball will be able to reach that height, we must make "h" equal to 16, if there's a real positive solution, then the ball will be able to reach it.
16 = -16t² + 35t
16t² - 35t + 16 = 0
t = [-(-35) +- sqrt((-35)² - 4*16*16)]/(2*16)
t = [35 +- sqrt(1225 - 1024)]/32
t = [35 +- sqrt(201)]/32
t = (35 +- 14.177)/32
t1 = 0.65071875
t2 = 1.5367
The ball will reach that height at 0.65 s and 1.53 s.