x^2 - 81 = 0. Add 81 to each side.
x^2 = 81. Take the square root of each side.
x = 9, -9
Answer:
52
Step-by-step explanation:
56+(x+72) =180
180 because it is supplementary
The <em><u>correct answer</u></em> is:
$43.20
Explanation:
The formula we have is
c = p(1+r), where c is the total cost, p is the price of the item before tax, and r is the tax rate written as a decimal. This formula comes from the fact that adding a percent tax to the cost of an item takes 100% of the price and adds r% to it; this is why we multiply the price by (1+r).
Since our tax rate is 8%, r = 8% = 8/100 = 0.08. The price of the item is $40. Using this information, we have:
c = 40(1.08) = $43.20
3m because in a square all sides are the same and there are 4 sides, so 12 ÷ 4 = 3
Answer:
There are 14 problems worth 5 points and 15 problems worth 2 points.
Step-by-step explanation:
Hope this helped have a good day :)
