Answer:
The first image = y =8x^2 -1
The second image y =8x^2
Step-by-step explanation:
Answer:
There is no x in the equation, bu the equation you posted equals 20.
Step-by-step explanation:
22+3−5
25-5=20
Answer:
The amount of markup is 88 dollars.
Step-by-step explanation:
Given that the whole sale price of bicycle is: $400

Mark up is the profit that the seller of the product makes after selling the product more in price more than its cost or buying price.
Given that mark up percentage is 22%
It can be written mathematically as:

Hence,
The amount of markup is 88 dollars.
Answer:
∠7 and ∠8 are supplementary because they are a pair of adjacent angles that form a straight line.
Step-by-step explanation:
Hope this Helps!!!!!!!
4 x^2 + 28 x + 49 = 0
Divide both sides by 4:
x^2 + 7 x + 49/4 = 0
Write the left hand side as a square:
(x + 7/2)^2 = 0
Take the square root of both sides:
x + 7/2 = 0
Subtract 7/2 from both sides:
Answer: x = -7/2