2x^2 - 4 = 68
add 4 to both sides
2x^2 = 72
divide both sides by 2
x^2 = 36
find the square root of each sides
x = 6, -6
ANSWER: the positive value of x is 6
Answer:
B)120º
Step-by-step explanation:
70+50=x
120=x
15/8 19/12 5/2 is the answer for this problem
To calculate the speed, divide 15.75 by 2.25 and you get 7 mph.