An efficiency study conducted for elektra electronics showed that the number of space commander walkie-talkies assembled by the average worker during the morning shift t hr after starting work at 8 a. m. is given by n(t) = −t3 + 6t2 + 15t (0 ≤ t ≤ 4).
a. find the rate at which the average worker will be assembling walkie-talkies t hr after starting work.
b. at what rate will the average worker be assembling walkie-talkies at 10 a. m.?
c. how many walkie-talkies will the average worker assemble between 10 a. m. and 11 a. m.?

step-by-step explanation:

a cube has 6 sides

the probability of getting 5 on the first cube is 1/6 since only one side of the cube has 5 on it.

there are 3 sides of the cube with even number on it [2,4,6]

therefore the probability of getting even number is 3/6

for both events to happen together, the probability would be

1/6 x 3/6 = 12/36

which simplifies to 1/12

it has to have an angle of 90 degrees

step-by-step explanation:

at each of the parallel lines adjacent angles are supplementary. the angles have special names identifying their positions with respect to the parallel lines and transversal. they are corresponding angles, alternate interior angles, or alternate exterior angles. an angles is congruent to its matched angle.