Sean's age and Helen's age are in the ratio of 3:5. Two years ago, Helen was twice as old as Sean was then. Find their present ages.

Cuanta cartulina se necesita para construir un prisma rectangular para cuya base mide 10cm y tiene 6cm de altura

Find the product and fill in the blanks to write in standard complex number form. (2 + 4i) (7 - 3i) = a0 + a1 i

Select all the correct answers. Which operations can be applied to a matrix in the process of Gauss-Jordan elimination?

What is the square root of pi times the diameter of the sun?

Use the simple interest formula to find the ending balance. $1500 at 7% for 1.5 years. Round your answer to the nearest cent. Enter your answer in the box.

Yolanda's club require that 60% of the members be present for any vote. If at least 30 members must be present to have a vote how many members does the club currently have

Twenty five students are in class. each student will have one fourth of sandwich for a snack. each sandwich is made with two slices of bread.

F (x) = 2x-6 and g (x) = 3x+9, find (f+g) (x) A (f + g) (x) = - x - 15 B (f + g) (x) = 5x + 3 C (f+g) (x) = 5x+15 D (f+g) (x) = x+15

Resuelve las siguientes ecuaciones tales que 0° ≤ x ≤ 360° sen x=sen (π/2-x) cos x + 2 sen x = 2 csc x = sec x 2 cos x * tan x - 1 = 0 4 cos2 x = 3 - 4 cos x

The price of a television was reduced from $280.00 to $256.20. What was the percent of decrease in the price?