Answer:
<u>f(x)=x²-2x-2</u>
Step-by-step explanation:
<em><u>f(x)=ax²+bx+c</u></em>
f(0)=-2 => c= -2
f(1)= -3=> a+b-2=-3; a+b=-1
f(2)= -2; 4a+2b-2=-2; 4a+2b=0; 2a+b=0
a+b=-1 and 2a+b=0
2a+b-(a+b)=0+1=> a=1
2+b=0=> b=-2
f(x)=x²-2x-2
Answer:
The price over three days fell linearly
Step-by-step explanation:
s = stock
s = -4x
s = -4(3)
s = -12
The stock decreased by 12 dollars over 3 days.
Answer:
The answer is 7.875
Step-by-step explanation:
You can get this answer by tuting the numbers into decimals and multiplying
To find the value of a variance add and subtract the variance from the original number.
The original number is 32 hot dogs.
The variance is 5 hot dogs.
32-5 = 27
32 + 5 = 37
This means he needs to eat between 27 and 37 hot dogs.
he inequality with variance is written as: 27 < h < 37
1. -5^3-4^3
2. -15-64
3. -79
