Answer:
5.24 in
Step-by-step explanation:
The arc length is calculated as
arc = circumference × fraction of circle
= 2πr × 
= 2π × 5 × 
= 
≈ 5.24 in (2 dec. places )
To evaluate the probability that the lifespan will be between 1440 and 1465 hours will be given by:
P(1440<x<1465)
using the z-score formula we obtain:
z=(x-μ)/σ
where:
μ=1450
σ=8.5
hence
when x=1440
z=(1440-1450)/8.5
z=-1.18
P(z<-1.18)=0.1190
when x=1465
z=(1465-1450)/8.5
z=1.77
P(z<1.77)=0.9625
hence:
P(1440<x<1465)
=0.9625-0.1180
=0.8445
Answer:
miles divided by gallons
car A= 115÷5=23 miles per gallon
car B= 126÷6=21 miles per gallon
Car A gets better gas mileage.
The appropriate numbers to fill in the magic squares are;
Row 2, Column 2 = 21/133
Row 2, Column 3 = 24/38
Row 3, Column 2 = 70/95
Row 3, Column 3 = 25/95
<h3>How to use magic squares?</h3>
To solve this magic square, we will follow the procedures below;
- Step 1; Convert all the numbers into lowest forms.
- Step 2; Find the sum of any column or row which is 34/19.
- Step 3; Put the numbers given in such positions that the sum of each row, column and diagonal is equal.
- Step 4; Write the numbers in their original form.
When we follow those steps above, we will arrive at the following figures;
Row 2, Column 2 = 21/133
Row 2, Column 3 = 24/38
Row 3, Column 2 = 70/95
Row 3, Column 3 = 25/95
Read more about Magic Squares at; brainly.com/question/16160523
#SPJ1
