The sum of the first n consecutive even numbers can be found using S = n2 + n, where n ≥ 2.

What is the value of n when the sum is 156?

A matrix contains 30 elements. Which of the following cannot equal the number of rows of the matrix? a. 24 b. 1 c. 30 d. 5

Use the determinant of the coefficient matrix to determine which of the following linear systems have unique solutions. 0 X + 3y = 4 3. x - y = 5 x+2y - z = 8 x-y+22=0 2x - 3y + z = 1 O x + 3y + z = 4 2x+6y + 2z = 5 X + y + z = 0 DONE

Write an algebraic expression, equation, or inequality for each (don't solve) : a) twelve more than 8 times a number b) the difference of 6 and a number is less than 72 c) 5 less than a number is two-thirds of the number d) the ratio of twice a

Given this rectangular prism with length = 15 m, height = 25 m, and Volume 13, 500 m*, find the missing width of the prism: V = 13,500 m² 25 m 15 m ? m

Suppose the diameter of a circle is / color{green}{16}16 start color green, 16, end color green. what is its radius?

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.