Answer:

Step-by-step explanation:
An arc measure of 20 degrees corresponds to a central angle of 20 degrees.
Area of sector of circle

where n = central angle of circle, and r = radius



<h3>One less than the product of four and a number is 11. What is that number ?</h3>
Answer: The number is 3
Step-by-step explanation:
We will call X the number, then 4X - 1 = 11
4X = 11 + 1 =12
X = 12/4 =3
This is the number = 3
Answer:
He invested $1200 and had a balance of $1260 after 3 years.
Every triangle have three angles that add up to 180°. With this information, we can find out the missing angle.
The sum of three angles should add up to 180°.
148° + 11° + K = 180°
Where k is the missing angle.
Solve for K.
Combine like terms.
148° + 11° + K = 180°
159° + K = 180°
Subtract both sides by 159°.
159° + K = 180°
159° - 159° + K = 180° - 159°
K = 21°
So, the missing length is 21°.
17 goes into 34 two times
and goes into 0 zero times
So 340 / 17 = 20