2x^3-42x-40=0
2x^3-42x=40
2x(x^2-21)=40
a. 2x=40=>x=20
b. x^2=21+40=>x^2=61=>x=+-(radical(61)
Angle A = angle U since they're both right angles (both 90 degrees). This is what the square marker means.
segment AC = segment UW
Angle C = angle W because they have the same angle marker
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we have two pairs of congruent angles, with segments between them that are congruent. So we use the ASA property
The final answer is choice E.
Answer:
13 hours 56 mins. they not open
Step-by-step explanation:
2 1/5 =2hrs 12minutes
3 2/3 = 3 hour 40 minutes
4 2/10 = 4 hours 12 minutes
for a total of 10 hours 4 minutes a day open.
24 hours a day - 10 hours 4 mins. = 13 hrs. 56 mins.
