Which division problem would have an estimated quotient of 15 if the divisor and dividend were rounded to the nearest whole number? 90.24 divided by 6.3 79.85 divided by 3.99 85.01 divided by 16.77 59.87 divided by 10.21 I'm on a test the last question please I need an answer ASAP

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?