Simplify sin 4 theta/1+cos4 theta using half angle formula

Michelle is 4 years older than her sister Samantha. If the sum of their ages is 32 how old are each of the sisters

A Ferris wheel is 40 meters in diameter and boarded from a platform that is 2 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 10 minutes.

Five times a number x minus 9 is two thirds of a number y. What is the equation?

What is the expanded form for 0.326

Solve the equation. Show your work. 3x = 45

Quadratic equation whose roots are 6 and 4, and whose leading coefficient is 5.

How many numbers less than 1000 are divisible by 7?

What shape has 4 equal sides. and sometimes has 4 right angles

Together, selina and pam have 132 stamps. selina's collection has 34 more stamps than pams collection how many stamps does pam have

This morning, Bobby had $50 in his wallet. Then he got $40 in babysitting money. Which integer represents how much money is in Bobby's wallet now?