PLS HELP ASAPP ILL GIVE BRAINLIEST IF CORRECT evaluate arccsc2

a) {pi/6, 5pi/6}

b) {pi/6 plus or minus 2pi n, 5pi/6 plus or minus 2pi n}

c) pi/3

d) {pi/3 plus or minus 2pi n, 5pi/3 plus or minus 2pi n}

Can some one me, i’ve been asking for so long

The label on the car's antifreeze container claims to protect the car between ? 40°c and 125°c. to convert celsius temperature to fahrenheit temperature, the formula is c = 5 over 9 (f ? 32). write and solve the inequality to determine the fahrenheit temperature range at which this antifreeze protects the car. ? 40 > 5 over 9 (f ? 32) > 125; ? 40 > f > 257 ? 40 < 5 over 9 (f ? 32) < 125; ? 40 < f < 257 ? 40 < 5 over 9 (f ? 32); ? 40 < f 5 over 9 (f ? 32) < 125; f < 257

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?