Answer:
(x+1)^2 = 49
x = 6 x = -8
Step-by-step explanation:
x^2 + 2x – 48 = 0
Add 48 to each side
x^2 + 2x =48
Take the coefficient of x
2
Divide by 2
2/2=1
Square it
1^2 =1
x^2 + 2x +1=48+1
x^2 +2x+1 = 49
(x+1)^2 = 49
Take the square root of each side
sqrt((x+1)^2) =±sqrt( 49)
x+1 = ±7
Subtract 1 from each side
x+1-1 = -1 ±7
x = -1+7 x = -1 -7
x = 6 x = -8
Answer A is the only one that seems to make sense to me id choose A
Answer: 15/4 or 3 3/4
Explanation: You make 2 1/2 into 5/2 (improper fraction) and 1 1/2 into 3/2.
You multiply the two together (5/2 x 3/2) equaling 15/4 (improper fraction) or 3 3/4 (mixed fraction)
<span>increases, the value of the inverse variable will decrease at the same rate and vice versa. The only time in which these two inverse variables will have the same value is when they each have a value of zero.</span>
Answer:
18
Step-by-step explanation:
since U is the midpoint of QT, QT = 2(QU)
similarly, QS = 2 (QR)
because QR is parallel to QS and QU is parallel to QT, triangle QUR is similar to triangle QTS. therefore, the scaling factor between QT/QU and QS/QR is equal to the scaling factor between RU and ST.
therefore,
ST = 2(RU)
36 = 2(RU)
18 =RU
