Answer:
256
Step-by-step explanation:
Raise 4 to the power of 4
Basically, multiply 4 by itself four times. :)
Answer:
Interest Manny earns after 2 years is $52
Step-by-step explanation:
Amount deposited = $650
Simple annual interest rate = 4%
To find: Interest after 2 years
We know that the formula to calculate the interest amount is
Simple interest (S.I.) = ![\frac{Prt}{100}](https://tex.z-dn.net/?f=%5Cfrac%7BPrt%7D%7B100%7D)
where,
P is the initial amount deposited
r is the rate of simple interest in percentage
t is the time in years for which interest is to be calculated
Substituting the known values in the formula, we get
S.I = ![\frac{650 x 4 x 2}{100}](https://tex.z-dn.net/?f=%5Cfrac%7B650%20x%204%20x%202%7D%7B100%7D)
= 52
Hence the interest Manny earns after 2 years is $52
You just substitute the value of x in the given equation:
f(x) = 2x^2 - 5
f(-4) = 2 (-4)^2 -5 = 27
f(x) : a name given to the equation
f(-4): refer to the equation when the value of the independent variable x has the value between the brackets.
Set up a proportion.
2/3 = 12/x. Cross multiply the proportion.
2x = 36. Solve for x.
x = 18.
This sequence is arithmetic, because each number is the last number plus two.