Answer:
Step-by-step explanation:
We are given
zeros as -10 and 7/8
now, we can set up function as
now, we are given that
leading coefficient is 8
so, a=8
now, we can plug it
now, we can simplify it
so, we get
You can find an axis of symmmetry of quadratic function by using this formula:
An axis of f(x):
Of g(x):
Of h(x):
At least to greatest you've got -3, 0, 1 so f(x), g(x), h(x). Answer a
-4r-11=4r+21
Move 4r to the other side
Sign changes from +4r to -4r
-4r-4r-11=4r-4r+21
-4r-4r-11=21
-8r-11=21
Move -11 to the other side
Sign changes from -11 to +11
-8r-11+11=21+11
-8r=21+11
-8r=32
Divide both sides by -8
-8r/-8=32/-8
Answer: r=-4
To solve this we are going to use the future value of annuity due formula:
where
is the future value
is the periodic deposit
is the interest rate in decimal form
is the number of times the interest is compounded per year
is the number of deposits per year
We know for our problem that
and
. To convert the interest rate to decimal form, we are going to divide the rate by 100%:
. Since Ruben makes the deposits every 6 months,
. The interest is compounded semiannually, so 2 times per year; therefore,
.
Lets replace the values in our formula:
We can conclude that the correct answer is <span>
$29,299.53</span>
1. -5^3-4^3
2. -15-64
3. -79