Emmett has $90,000 in a savings account that earns 5% interest per year. The interest is
1 answer:
You might be interested in
Answer:
y = 2.5(x + 2)^2 - 3
The answer is A
Step-by-step explanation:
The general equation for the vertex is
y = a (x + b)^2 + c
a we are not certain about
b = 2
c = - 3
y = a(x + 2)^2 - 3 Now we have to solve for a.
a is found by using the one point we know (0,7) It means when x = 0 y = 7 so just put those two numbers in.
7 = a(0 - 2)^2 - 3
7 = a (- 2)^2 - 3 Add 3 to both sides.
7 + 3 = a(4) Combine 7 and 3
10 = 4a Divide by 4
10/4 = a Do the actual division
2.5 = a
Answer: See above
Total length of the string = yard
Length of string used for craft = of total length of string
= of
=
= yard
Length of the string left after use = Total length of the string - Length of string used for craft
Length of the string left after use =
=
Reducing it to the lowest term, we get
= yard
Therefore, the length of string left is yard.