An auditorium has 20 seats. there are 20 seats in the first row, 21 seats in the second row, 22 seats in the third row, and so on. how many seats are there in all 20 rows.

Vertical angles are a. never congruent. b. always congruent. c. congruent only when they are both obtuse angles. d. congruent only when they are both acute angles.

How much would 200$ invested at 4% interest compounded continuously be worth after 5 years?

The area of rectangle ABCD is 9 cm2 show that x2 + 5x=3

Which are the solutions of x^2 = - 7x - 8?

The tallest building in Africa is the Carlton centre in johannesburg, south Africa. what is the distance from the top of this 732ft building to the horizon to the nearest mile? (5280ft=1mi, radius of earth = 4000mi)

Solve the equation 8y+1=17

Evaluate the expression below for s=3 and t = 7 the problem 2st^2 minus s^2 =

How do you write 40/25 as a percentage?

A car dealer gained N400 on a sale, which was equivalent to 8% profit. what was the cost price

Find the value of the standardized z-test statistic and the area above 140 for a N (160,25) distribution. Round your answer to three decimal places. A) z = - 0.8, area = 0.212B) z = - 0.8, area = 0.788 C) z = 0.8, area = 0.212 D) z = 0.8, area = 0.