Answer:
The answer is 2nd point
Step-by-step explanation:
In this question, inverse of f(x) is equals to g(x). First, you must know how to find the inverse of f(x). In order to find the g(x), you must let f(x) = y and make x thd subject :
1.
Let y = (10x+9)/8
y = (10x+9)/8
8y = 10x + 9
8y - 9 = 10x
(8y-9)/10 = x
x = (8y-9)/10
g(x) = (8x-9)/10 (Remember to convert y back to x)
2.
Let y = x - 9
y = x - 9
y + 9 = x
x = y + 9
g(x) = x + 3
Next, by looking in no.1, the inverse of f(x) is wrong and in no.2, it shows the correct form of inverse. So only 2 is an inverse function
Answer:
x = -3
Step-by-step explanation:
x + x + x = 3 x
3 x + -3 = -12
-12 - -3 = 9
3x = -9
x = -9 ÷ 3 = -3
Answer:
Y=s^2/36 and y=5.7;14.3 ft
Step-by-step explanation:
A(s)=s2/36 is the function. A(s) is the aspect ratio, while s is the wingspan. A(s) = 5.7 if one glider has an aspect ratio of 5.7. We'd want to know the glider's wingspan. By replacing A(s) with Y, we get the following equation system:
- Y=s^2/36
- with y = 5.7
- 5.7 = s^2/36
- 5.7*36 = s^2
- √205.2 = s
- 14.3 ft
we know that
The compound interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
substitute in the formula above
therefore
<u>the answer is the option D
</u>
Step-by-step explanation:
its 1/4 of the circle
circle circumference:
we need 1/4 of it, so its
