What's the complex conjugate of 13-21i

147 plus what equals 180

If Jonny has three apples and divided it by four how many does he haveesft

write the following using algebraic notation, using x for unknown numbers i think of a number, multiply by two and add nine

Calculate the average rate of change of the function f (x) = 3x2 over the interval 1 ≤ x ≤ 5.

An airplane takes off 12 and a half miles south of a city and flies due north at a constant speed of 180 miles per hour what is the plane's position relative to the city after 45 minutes

The following list gives the coefficients for the binomial expansion of (x + y) 10. What is the value of B? 1, 10, 45, 120, 210, 252, 210, B, 45, 10,1 1 10 45 120

A regular pentagon is shown. If the pentagon is rotated clockwise around it's center, the minimum number of degrees it must be rotated to carry the pentagon onto it self is 1) 54° 2) 72° 3) 108° 4) 360° Explain your answer

In the following scenario describe the target population, sample frame, sample unit and observation unit. Discuss any possible sources of selection bias or inaccuracy of responses.

Tamika opened a money market account that has a 4.25% annual interest rate, compounded annually. She deposits $1,750 into the account each year. How much interest will the account earn after 15 years? $9,449.40 $33,949.40 $35,699.40 $71,398.40

Provide reasons for the proof. Given line h is parallel to line k. line j is perpendicular to line h. Prove line j is perpendicular to line k