The expression cos4xcos3x+sin4xsin3x is equivalent to?

A. sin x

B. sin7x

C. cos x

D. cos7x

What is 40/583 in word

How do I do a+5:3=12?

DIstributive 3 (5+6) math

Which statement is true about the function f (x) = - √-x? a. the domain of the function is all negative real numbers b. the range of the function is all positive real numbers c. the domain and range of the function have opposite signs d.

Suppose an object moves along the y-axis so that its location is y = f (x) = x 2 + x at time x (y is in meters and x is in seconds). find the instantaneous velocity at x = 4 seconds

1. Using the rational root theorem, list the possible zeros: Using p/q list all the possible zeros of the following equation: 3x^2 - 7 = 0. Hint: there are 8 correct answers.

Cherie accepted a job through an employment agency. The job pays $1,500 a week. The agency charges 20% of her first 4 weeks, pay. How much does she owe the employment agency?

What is the solution to the equation? â€"4q + 8 = â€"2q â€" 16 A. q = â€"12 B. q = â€"4 C. q = 4 D. q = 12

How to work out 270 : 30

DG's Plumbing and Heating charges $50 plus $65 per hour for emergency service. Bill was billed $440 for an emergency call. How long was the plumber at Bill's house?