Log2cos (x)

How do I find the derivative of the following question

In a scale drawing of the solar system, the scale is 1 mm = 500 km. For a planet with a diameter of 9000 kilometers, what should be the diameter of the drawing of the planet?

A gallon of paint will cover about 350 square feet of space. You are painting 3 halls of a school. Ignoring the doors, the halls are 10 feet tall and 125 feet long. You buy 11 gallons of paint. Did you buy enough paint? If not, why?

Determine whether the ordered pair is a solution of the given system (2,12) y >2x + 4 y < 3x + 7

Dante wants to place a border around the flowers in his yard. The area he wants bordered is 24 square feet. What is the least amount of border needed? Find it's length and width in whole numbers

If B = {-13, - 9, - 7, - 3}, choose the set A that will make the following statement false. B ⊆ A a. A is the set of negative odd integers b. A is the set of integers c. A is the set of rational numbers d. A is the set of whole numbers

If cos Θ = negative 4 over 7, what are the values of sin Θ and tan Θ?

Express x^2-5x+8 in the form (x-a) ^2+b where a and b are top-heavy fractions.

Which of the following is the product of the rational expressions shown below?

Find the volume of a cylinder with a radius of 6 cm and height 15 cm? (to the nearest whole centimeter) A) 424 cm3 B) 848 cm3 C) 1,696 cm3 D) 3,393 cm3

I was at school today and I was having trouble with this question. What is 210 of 300?