well, the subtotal or pre-tax bill is $23.50, now let's add the 8% tax and
so the post-tax bill is 23.50 + 1.88 = 25.38, and Jackie's tip is 20% of that
Answer:
A = 3W² + W + 1/8πW²
Step-by-step explanation:
rectangular window is L x W
semicircle is 1/2 πr²
r = 1/2 W
L = 3W + 1
A = W(3W + 1) + 1/2 π(1/2W)²
A = 3W² + W + 1/8πW²
Answer:
-4 ± 2√6
Step-by-step explanation:
Rewritten in standard quadratic form, x^2+8x-2=18 becomes x^2 + 8x - 20 = 0.
Here the quadratic coefficients are a = 1, b = 8 and c = -20 and so the discriminant is b^2 - 4ac, or 8^2 - 4(1)(-20), or 96.
Because the discriminant is positive, we know that this quadratic has two different real roots. These roots are:
-b ± √(b² - 4ac)
x = -------------------------
2a
which in this case comes out to:
-8 ± √96 -8 ± 4√6
x = ------------------ = ------------------- = -4 ± 2√6
2 2
9514 1404 393
Answer:
your answer choice is correct
Step-by-step explanation:
The point (0, 3) tells you the y-intercept is 3, eliminating the 2nd and 4th choices.
The table value 3 1/2 for x=1 tells you the slope is 1/2, eliminating the 3rd choice. (y differs by 1/2 when x differs by 1)
The 1st choice is the one that works.
Answer:
2
degree is highest exponent in equation and 2x² has 2 and is highest
