I just need help with B. Please help me. I will mark Beainliest.

Mathematics

2 answers:

IRISSAK [1]4 years ago

6 0

Here we have to find the length of arc AB.

Length of an arc = ( central angle/360)×2 πr

= ( 64.6 / 360 ) × 2 × 5 miles × 22 / 7

= 0.179 × 220 miles / 7

= 39.38 miles / 7

= 5.625 miles.

The required answer is 5.625 miles.

kari74 [83]4 years ago

5 0

Remark
The circumference of a complete circle = 2*pi*r
A part of the circumference = k * 2* pi * r / 360 where k is the measure of any central angle.

Givens
k = 64.6 degrees
r = 5 miles

Formula
Walking distance = k/360 * 2 * pi * r

Sub and Solve
Walking Distance = (64.6/360) * 2 * 3.14 * 5
Walking distance = 5.6346 miles

You might be interested in

There are 5 exams in a semester. You have scored 77, 90, 85, and 100 on the previous four exams. What must you make on the fifth

siniylev [52]

Answer:

<h2>The correct answer for this question is 78.</h2>

Step-by-step explanation:

The average or mean of any variable or mathematical phenomenon is calculated as the division of the sum of all the numbers or items within the particular variable by the total number of items or numbers within the variable.
In this case, the marks of the 4 exams in the semester are 77,90,85 and 100 respectively.There are total 5 exams in the semester.
Let's suppose that the marks for the 5th exam is x.
Therefore, based on the mathematical formula to compute average or mean,to get an overall average of 86 including all the 5 exams, one has to get:-

$\frac{77+90+85+100+x}{5}=86$