Answer:
The inequality is 
Step-by-step explanation:
Total time:
The total time to complete the test is the sum of the number of multiple-choice questions multiplied by the time it takes to solve each and the number of short-answer questions multiply by the time it takes to solve each.
In this question:
Same number(n) of both.
Multiple-choice takes 2 minutes, short-answer takes 3.5 minutes. The total time is given by:
Write an inequality to determine how many questions, n, the teacher can include if the test must take students less than 45 minutes to complete.?
This means that:
So
The inequality is
Answer:
1 day: 4480
2 days: 8960
3 days: 13440
---- function inverse
Step-by-step explanation:
Given
Solving (a): The amount present after 1 day.
Here, 
So:
Solving (b): The amount present after 2 days.
Here, 
So:
Solving (c): The amount present after 3 days.
Here, 
So:
Solving (d): The inverse function of:
Replace f(x) with y
Swap x and y
Rewrite as:
Divide by 4
Take square roots
Replace y with function inverse
Answer:
B
Step-by-step explanation:
they are two 90° .so B is correct I think
Answer:
Alexandria requires 55 rows to use all the shells.
Step-by-step explanation:
Given:
Number of Shells = 329
Number of shells in each row = 6
We need to find the number of rows she need if she wants to use all the shells.
Solution:
Now we know that;
number of rows she needs can be calculated by Dividing Number of Shells with Number of shells in each row.
framing in equation form we get;
number of rows = 
Hence Alexandria requires 55 rows to use all the shells.
The answer is (g+2) (g-11)
