Answer:
125.66
Step-by-step explanation:
C = 2πr = 2·π·20 = 125.66371
Answer:
28x+20
Step-by-step explanation:
So the equation for perimeter is
Sx4 or S+S+S+S
So you would do
Answer:
25%
Step-by-step explanation:
Given that,
Initial cost of a t-shirt = $30
Final cost of a t-shirt = $37.50
We need to find percent of change. The percentage change in any value is given by :
Hence, the percentage error is 25%.
Question 1:
This question may look complicated, but we have some unnecessary info.
All we need to know that the angle next to y must also be 30 degrees because of alternate interior angles.
Thus, y + 30 = 180
Subtract both sides by 30
y = 150
Question 2:
Angle a must also be 36 because of alternate interior angles.
We also have a triangle.
We know that 36+77+?=139 because of alternate interior angles.
Let's find the ? angle.
? = 26
Now we know that a+b+?=180 because it's a triangle.
36+b+26=180
b=118
That's all we need. The last choice is the only answer that matches these two answers.
(If you want to find the value of c by solving for it, just see that there's a triangle where all the angles but c is known)
Have an awesome day! :)
The domain of t is the years the account is active: 0 - 6 years. The domain of t sets the range of A.
When t = 0 A = 15,000.00
when t = 6 ; A = 18,979.79
So it's answer D.
