Mamma Temte bakes six pies each day at a cost of $2 each. On 19% of the days she sells only two pies. On 30% of the days, she sells 4 pies, and on
the remaining 51% of the days, she sells all six pies. If Mama Temte sells her
pies for $6 each, what is her expected profit for a day's worth of pies?
[Assume that any leftover pies are given away.]
O a. -$7.36
O b. -$6.00
O
c. $27.84
O d. $15.84

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?