A bag has 3 red flying discs I blue flying discs 1 speckled flying discs 1 yellow flying discs and 5 black flying discs you randomly pull a flying disc from the bag keep it out and then pull another one out. What is the probability of getting a black then a black

Which triangles area would be calculated using the trigonometric area formula

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

Can someone check if i did this correct. it’s number 4 if you’re wondering.