Answer:
The bottom left one
Step-by-step explanation:
They are the only graph that has one output for each x value
ANSWER
B.

EXPLANATION
The given expression is
(sin x + 1)(sin x − 1)
Note that:

This implies that,

We can factor -1 on the right hand side to get,

Note that from the Pythagorean Identity

We apply this identity to obtain:

The correct choice is B
Step-by-step explanation:
Let x be the miles Kenyon ran on tuesday
Let y be the miles Kenyon ran on thursday
Given,
Mon + Tues + Wed + Thu = 8mi

also given,

Now we have x + y = 5.2 as equation 1 and -x + y = 0.4 as equation 2
Using equation 1,

Substitute this equation into equation 2.

Substitute y = 2.8 into equation 1.

Therefore Kenyon ran 2.4 miles on tuesday, and ran 2.8 miles on thursday.
Answer:
A 19 yard gain
Step-by-step explanation:
Simple the question answers itself
15f - 5 + 2f
Rearrange terms
15f + 2f -5
Factor f out
f(15+2) -5
Simplify
17f -5