Answer: A & C
Step-by-step explanation:
g(x) = 8 means where is y = 8?
when we go to -4 on the x-axis, the y value there is 8. so this works!
when we go to 6 on the x-axis, the y value is 6. we were looking for 8. so this does not work.
when we go to 9 on the x-axis, the y value is 8. so this works!
A & C
Answer:
- after week 7: 4374 pennies
- 486 pennies: after week 5
Step-by-step explanation:
The sequence values have a first term of 6 and a common ratio of 3, so can be described by the formula ...
an = 6·3^(n-1)
This can be rearranged to ...
an = 2·3^n
__
When n=7, the value is ...
a7 = 2·3^7 = 4374 . . . . pennies saved after 7 weeks
__
To find when there are 486 pennies saved, we can solve the equation ...
486 = 2·3^n
243 = 3^n
log(243) = n·log(3) . . . . . . . take the logarithm
log(243)/log(3) = n = 5 . . . . divide by the coefficient of n
Tabitha will have saved 486 pennies after 5 weeks.
Which inequality represents this situation ?
1.59×n < 20
How many charms can Marta purchase ?
20 : 1.59 = 12 (+$0.92)
<span>C = total calories burned
r = rate of burning calories = 420 calories burned/hour
t = time in hours
C = 420 * t
</span>
The correct answer is C. 2,400
Explanation- I’m a freshman trust me I know!