Answer:x = 9
Step-by-step explanation:
1a is right
In 1b, add the tax, don't subtract, the answer would be 36.04
2a) 32.5*.2=6.5
2b)32.5-6.5=26
3a)12.5*.13=1.63
3b)13.83
4a)59.996
4b)89.4
Answer:
36i^2 i think that's right
The total cost of pants and shirts is given by:
2 * (22.54) + 2 * (19.89) = 84.86 $
In addition to this, we have 6% taxes, therefore, the total cost is:
(1.06) * (84.86) = 89.9516 $
Then, we must add to this value shipping charges.
Since the value is between 75.01 and 125, then:
Shipping charges = $ 8.95
Adding we have:
89.9516 + 8.95 = $ 98.9016
Answer:
his total order was:
c) $ 98.90
Answer:
f(x) = -22.45x^2 + 92.38x + 1.86
Because the points on the scatter plot show an increase in concentration from 0 hours through 2 hours and a decrease from 2 hours through 4 hours, the relationship shown is best modeled using a quadratic function.
Let's look closely at the two quadratic function choices to determine the key features of their graphs.
Because the coefficient of its x^2 -term is negative, the graph of f(x) = -22.45x^2 + 92.38 + 1.86 will be concave down and have a maximum value.
Because the coefficient of its x^2 -term is positive, the graph of f(x) = 22.45x^2 + 92.38 + 1.86 will be concave up and have a minimum value.
Because the scatter plot shown has a concave down trend, the function that best describes the relationship shown is:
f(x) = -22.45x^2 + 92.38 + 1.86
Step-by-step explanation:
