Atriangular pyramid has a slant height of 0.75 foot. the equilateral triangular base has a perimeter of 1.2 feet and an area of about 0.07 square foot. find the approximate surface area.

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

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Find the midpoint m of z1=(8+5i) and z2=(12+3i)