Answer:
Yes
Step-by-step explanation:
If , then .
If are positive, then .
So if I multiply both sides of by it will not effect the direction of the inequality since it is of positive value.
This actions gives us .
Using foil we can multiply the left hand side out resulting in:
Add on both sides:
.
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Also consider the function . This function increases after is 0. This means as you increase the value for the value for increases for positive value inputs of .
Answer:
y = -9
Step-by-step explanation:
Answer:
P= positive N=negative P x N = N N x P = N P x P = P N x N = P Hope that helps!?!?!
Step-by-step explanation:
Answer:
26.99
Step-by-step explanation:
Original price = 49.99
Discount rate = 50% = .5
To find the discount we take the original price and multiply by the discount rate.
Discount = original price * discount rate
Discount = 49.99 *.5
Discount = 24.995 (rounding to the nearest cent) =25.00
To find the sale price we subtract the discount from the sale price.
Sale price = original price - discount
= 49.99 -25
=24.99
To find the sales tax, we take the tax rate and multiply by the sales price
tax = sales price * tax rate
tax= 24.99 * .08
= 1.9992
Round to the nearest cent
= 2.00
The total cost is the sales price plus the tax
Total cost = sales price+ tax
= 24.99 +2.00
26.99
Answer:
17/2 pi
Step-by-step explanation:
Area of the whole circle is pi r², which is 9 pi
9 pi x 17/9 pi / 2 pi = 17/2 pi