Cos4x = 8 cos^4 x - 8 cos^2 x + 1
me prove! : d

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Aquadratic equation in standard from is written ax^2= bx+c, where a, b and c are real numbers and a is not zero?