Josephine is constructing a circle circumscribed about triangle XYZ. She uses the following sequence of steps to construct the circle. She constructs the perpendicular bisectors of two sides.
She finds their point of intersection, P.
She uses a compass, with the fixed end on X, to draw a circle passing through point P.
Did Josephine make any errors while constructing the circle?

A.
Yes, she should have found the perpendicular bisectors of all 3 sides.
B.
Yes, she should have constructed the angle bisectors.
C.
Yes, she should have placed the compass with the fixed end on P and drawn a circle through point X.
D.
No, she did not make any errors.

the correct answers i think are b. and d.

give me brainliest if it is correct!

d. you cannot tell because there are no values shown.

answer: $1794

step-by-step explanation:

a) 40 more; b) old factory:   10%, new factory:   16%; c) week 4

explanation:

a) at week 0, we see in the graph that the new factory produces 190 specialty items.  

using the function, substituting 0 in for w,

this is a difference of 230-190 = 40.

b) the function for the old factory is written in the form f(x) = a(1+r)ˣ, where a is the original amount, x is the amount of time and r is the growth rate.   the equation for the old factory is ; 230 is in place of a and is the original amount; w is the amount of time; which means 1+r = 1.1.   this means that r must be 0.1 or 10%.

for the new factory, we find the percent of increase to find the growth rate; the formula for this is

between the first two points, the amount of change is 220-190 = 30; this gives us

30/190 = 0.158 ≈ 0.16 = 16%

c) at week 0, the old factory has 230 while the new factory has 190.

at week 1, the old factory has 230(1.1) = 253 while the new factory has 220.

at week 2, the old factory has 230(1.1²) = 278.3 while the new factory has 252.

at week 3, the old factory has 230(1.1³) = 306.13 while the new factory has 290.

at week 4, the old factory has 230(1.1⁴) = 336.743 while the new factory has 337.   this is the first week that the new factory surpasses the old.