Answer:
21%.
Step-by-step explanation:
We have been given that Martha estimated there were 85 marbles in a jar for a contest. The actual number of marbles in the jar was 107.
We will use percentage error formula to answer our problem.
![\text{Error percentage}=\frac{|\text{Approx-Exact}|}{\text{Exact}} \times 100](https://tex.z-dn.net/?f=%5Ctext%7BError%20percentage%7D%3D%5Cfrac%7B%7C%5Ctext%7BApprox-Exact%7D%7C%7D%7B%5Ctext%7BExact%7D%7D%20%5Ctimes%20100)
Let us substitute our given values in above formula.
![\text{Error percentage}=\frac{|85-107|}{107}} \times 100](https://tex.z-dn.net/?f=%5Ctext%7BError%20percentage%7D%3D%5Cfrac%7B%7C85-107%7C%7D%7B107%7D%7D%20%5Ctimes%20100)
![\text{Error percentage}=\frac{22}{107}} \times 100](https://tex.z-dn.net/?f=%5Ctext%7BError%20percentage%7D%3D%5Cfrac%7B22%7D%7B107%7D%7D%20%5Ctimes%20100)
![\text{Error percentage}=0.205607476635514 \times 100](https://tex.z-dn.net/?f=%5Ctext%7BError%20percentage%7D%3D0.205607476635514%20%5Ctimes%20100)
![\text{Error percentage}=20.5607476635514\approx 21](https://tex.z-dn.net/?f=%5Ctext%7BError%20percentage%7D%3D20.5607476635514%5Capprox%2021)
Therefore, the percent error of Martha's estimation is 21% to the nearest percent.
Answer:
x = 130 degrees
Step-by-step explanation:
angle OAC = angle OBC = 90 degrees (angle between tangent and radius = 90 degrees)
This is quadrilateral and we know that quads = 360 degrees
So...
x + 90 + 90 + 50 = 360
rearrange
x = 130 degrees
-(1.5) -1,-1/2 ,2.5,3
Least. Greatest
Answer:
Step-by-step explanation:
It is zeroes