Answer:
A
Step-by-step explanation:
f(x) = 7x² - 15x + 2
A) f(1) = 7*1² - 15*1 +2 = - 6
f(1.5) = 7*(1.5)² -15*1.5 + 2 = - 4.75
B) f(2.2) = 7*(2.2)²-15*(2.2)+2 = 2.28
C) f(1) = 7*1² - 15*1 +2 = - 6
f(1) = 7*2² - 15*2 +2 = 0
D) not for all real numbers because we already have
f(2.2) = 7*(2.2)²-15*(2.2)+2 = 2.28 that is positive.
Answer:
The minimum and maximum temperatures in the house are 68.5°F and 76.5°.
The answer will be A.
p(x)=r(x) - c(x) Formula
p(x)=(12x) - (5x + 20) Substitution
p(x)=12x - 5x - 20 Distribution of the negative
p(x)=7x - 20 Combine like terms
That is your answer
Answer:
The answer is 64.
Step-by-step explanation:
Lets say the top row is <em>x</em> and the bottom row is <em>y</em>.
Since when <em>x</em> is 13 <em>y</em> is 104 and when <em>x</em> is 14 <em>y</em> is 112 that means the <em>y </em>value goes up by 8 every time.
when x=3: 16+8=24
when x=4: 24+8=32
when x=5: 32+8=40
when x=6: 40+8=48
when x=7: 48+8=56
when x=8: 56+8=64
Hope this helps you!!!!
First you need to add the prices to get 85.55. Then 100 - 85.55 is 14.45.
She will have $14.45 leftover
