The typical household in America uses an average of 5,328 kilowatt-hours (kWh) of electricity in 6 months. What is the average number of kilowatt-hours used in 4 months?

Prove the following(cot0+cosec0)[tex](cot0 + cosec0) { }^{2} = \frac{1 + cos0}{1 - cos0} [/tex]

Emily convinced her mom to buy a giant box of her favorite cereal. her mom doesn't think the box will fit on their shelf. the volume of the box is 1000 cm^3 . the base of the box is 25 cm by 10 cm

An eagle is flying at a constant height of 1000root3 meters from the ground level . a boy standing on the ground observes the angle of elevation of the eagles as 45. after 15 seconds it's angle becomes 30. find it's speed in km/hr