Answer:
C)
Step-by-step explanation:
Exponential means that something is growing faster as time goes by.
In C, we can see that at
x=1, f(x) is 2
When x=2, this doubles to 4. (+2)
When x=3, this becomes 8. (+4)
You can see that more is being gained at f(x) while x is only increasing by one. This shows exponential growth.
The factors, (9x - 4) and (9x +4), are obtained from factoring the sums of two square. Their product is obtained by subtracting the square of the second term from the square of the first term.
(9x)² - (4)² = 81x² - 16
The values of a and b are 81 and 16, respectively. Therefore, the answer is 81.
ANSWER:
24 points.
The amount of points Leila needs to score in her next game so that her average is 27 points per game is: 24 points.
STEP-BY-STEP EXPLANATION:
Let the amount of points Leila needs to score in her next game so that her average is 27 points per game = x
27 = total no. of points / total no. of games
27 = ( 33 + 28 + 24 + x ) / ( 3 + 1 )
27 = ( 85 + x ) / 4
27 × 4 = 85 + x
85 + x = 108
x = 108 - 85
x = 24