Trigonometry

Trigonometric Equations

0 ≤ x ≤ 2 π, solve the equation 4 sec x + 8=0

a bag contains 1p, 2p and 5p coins 3/8 of the bag are 1p coins there are 640 coins in total work out the numbers of 2ps in the bag

Albert and Bernard just became friends with Cheryl, and they want to know when her birthday is. Cheryl gives them a list of 10 possible dates: May 15, May 16, May 19, June 17, June 18, July 14, July 16, August 14, August 15, August 17.

Orlando invests S1000 at 6% annual interest compounded daily and Bernadette invests S1000 at 170 simple interest. After how many whole years will Orlando's investments be worth more than Bernadette's investments?

At Harriet Tubman middle school, there are 85 students in the 7th grade. The number of girls is 1 1/2 times the number of boys. How many girls and how many boys are in the 7th grade?

If VX - 11 = 8, what is the value of x?

Why is it that I can't see the answers to questions?

A garden is constructed in the shape of a right triangle with legs of length 10 feet and 12 feet. Find the area of the garden. A) 44 square feet B) 60 square feet C) 120 square feet D) 240 square feet

Two cubes of volumes 8cm3 and 27cm3 are glued together at their faces to form a solid with the smallest possible surface area. What is the number of square centimeters in the surface area of the resulting solid

Andre is solving the equation 4 (x+3/2) = 7. He says," I can subtract three over two from each side to get 4X equals 11 over two and then divide by four to get X equals 11/8 Cameron says I think you made a mistake

Discuss how the t-test for correlated groups and the t-test for single samples are alike and different.