Assuming you mean
(x-2)²=49
sqare root both sides and take positive and negative roots
x-2=+/-7
add 2 to both sides
x=2+/-7
x=2+7 and 2-7
x=9 and -5
7(7a-9)>84
first multiple out to get rid of the parentheses
49a - 63 > 84
add 63 to both sides
49a > 147
Divide by 49 and flip the sign because when you divide a inequality you have to flip the sign
a < 3
Answer:
ez, answer choice number 4
Step-by-step explanation:
y=-1/8x(this is the slope) -4(this is the y intercept
If you find the discriminant it will tell you the number and types of roots. The discriminant is the value b^2 -4ac.
a = 1
b = 1
c = 1
1^2 - 4*1*1
1-4 = -3
Since this is a negative number there will be 2 complex roots.
Answer: 187.2
Step-by-step explanation:
