Answer:
B
Step-by-step explanation:
We have

Here the value of a is always positive because distance is positive

Next, we factor out 7 to get our period

So our period is

Next, our phase shift we set the inner parenthesis equal to 0.


So our phase shift is -3/7
The remaining angle is 35 degrees. This makes the triangle an isosclese triangle as well.
Answer:
Step-by-step explanation:
We have to write 243 as a power of some number.
So, if we factorize 243 we get,
243 = 3 × 3 × 3 × 3 × 3
Therefore, we can write 243 as a power of 3.
No other number can be written in powers of 243 because it do not contain any other factor than 3.
Hence, 243 can be written as :

Answer:
1) 
2) 
3) 
4) 
5) 
Step-by-step explanation:
To solve each proportion, we apply cross multiplication.
Question 1:


Simplifying both sides by 5

Question 2:


Simplifying both sides by 20

Simplifying by 3

Simplifying by 2

Question 3:


Simplifying both sides by 7

Simplifying both sides by 3

Question 4:



Question 5:


Simplifying by 2, both sides

Simplifying by 8, both sides

Answer:
40 dollars
Step-by-step explanation:
25% of 16 minutes is 4 mins. 16+4=20 mins.
so 20*2=40 dollars