Find the length of the given arc. (the bolded portion of the arc)

a)

343π/8 cm

b)49π

c)

45π/8

d)

49π/4

Option D) 49π/4

Step-by-step explanation:

step 1

Find the circumference of the circle

The circumference of the circle is equal to

where

r is the radius

we have

substitute

step 2

Find the length of the given arc

we know that

The circumference of the circle subtends a central angle of 360 degrees

so

using proportion

Find out the length of the arc by a central angle of 315 degrees

Let

x ----> the length of the given arc

Simplify

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

answer: 800

step-by-step explanation: