<span>In order to find the final total including sales tax, you must multiply the original price by the decimal that represents the tax rate + 1.00.
For instance, if the sale tax rate was 7%, then we would add .07 to 1.00 to get 1.07.
We could then multiply the original price by 1.07. </span>
Using the form y=a(x-h)²+k
We can look at the vertex (-3,-2) which gives us the values of h,k
h=3, k=-2
Thus y=a(x+3)²-2
Then we can solve for a using any point on the line
- I'll use (-4,-1)
Insert the values of x,y into y=a(x+3)²-2
--> x=-4, y=-1
y=a(x+3)²-2
-1=a(-4+3)²-2
-1=a(-1)²-2
a-2=-1
a=-1+2
a=1
Insert the value of a
y=1(x+3)²-2
= (x+3)²-2
Thus y=(x+3)²-2 is the final equation in standard form
Answer:
m= -2
Step-by-step explanation:
Use the slope formula to find the slope m
.
Answer:
c seems most likely from the given answers
Step-by-step explanation:
Strong correlation: -0.91, 0.82
Medium correlation: -0.49, 0.54
weak correlation: 0.26, -0.18
If the decimal starts with 7,8, or 9 (like .82 or .91), it is strong correlation.
If the decimal starts with 6,5,4 (like .54, .49) then it is moderate correlation.
If the decimal starts with 1,2 or 3 (like .26) then it is weak correlation.
The negative signs have no effect.
