Determine the interval (s) at which f (x) is concave up given that f′′ (x) = -x2+4x+5.

How to do you solve c/3=30/5

Angle A B D is a right angle, which is the measure of Angle C B D? Angle A B D is intersected by line C to form angles 75 degrees and blank. 15° 25° 90° 115°

Explain why when you multiply and find one tenth of one tenth, it is equal to one hundredth

Solve this equation, and show step by step: y=-5/2x-5

Why does the shape of the distribution of the weights of russet potatoes tend to be symmetrical?

The pie chart is commonly used to present: A. budgets B. temperatures C. rain fall D. population growth

Two friends start a business. Together they spent 800 dollars for their initial inventory. They will sell all of their initial inventory for a profit, which will be split evenly among themselves.

If a square has 10 equal parts and 4 are shaded and 6 are blank what is the percent represented by the shaded area

John needs to cut three strips of woods, 25.5 cm, 15.3cm and 9.25cm long. He has a strip that is 72 cm long. How long will leftover piece be after he cuts what he needs?

Which property should be used to solve this equation 4+x=13