C) r^2 + 1 because any number squared (positive or negative) will be positive
Answer: The length of the arc is 1.57 centimeters
Step-by-step explanation: If the diameter has been given as 4 centimeters, then the radius would be diameter divided by 2, and that equals 2.
With the radius now known as 2, we can calculate the length of the arc as follows;
Length of an arc = (Ω/360) x 2πr
Where Ω is the angle subtended by the radio and r is the radius.
Length of an arc = (45/360) x 2 x 3.14 x 2
Length of an arc = (1/8) x 12.56
Length of an arc = 1.57
Therefore, the length of the arc is 1.57 centimeters
Answer:
The answer is B.36
Step-by-step explanation:
12+12+12=36
12 3x is 3x12
so 3x12 is 36
Answer:
She needs to jog 7 laps to make sure she covers at least 7.5 miles
Step-by-step explanation:
Kelly's goal is to complete 7 1/2 miles which in decimal form is: 7.5 miles.
Each lap around the park is 1 1/5 miles, which in decimal form is written as: 1.2 miles
Then, to find how many laps she needs to complete we do the quotient:
7.5/1.2 = 6.25
which means that she needs a quarter of a lap more than 6 laps, so she needs to go for 7 laps to meet the goal
