How do i find joint relative frequency?

Which type of triangle will always have exactly 1-fold reflectional symmetry?

7/9 is it terminate or repeat

2.34+1.9+5.23 round nerest ten

Batteries of each type have lifetimes before recharge that can be assumed independent and Normally distributed.

A triangle has side lengths of 18 cm, 80 cm, and 81 cm. Classify it as acute, obtuse, or right. obtuse right acute

This math question i really dont get ... A city park contains a cylindrical artificial pond that has a radius of 7.5 m. A 2 m concrete deck will be constructed around the pond. The concrete should be at least 15 cm thick.

What is the union of the sets M = (1, 7, 10, 11, 15) and N = (5,15) ?

The price of oil, in dollars per barrel, decline last week by 3.5%. If it starts the week at $102.00 per barrel, at what per barrel price did it end the week?

Riley's family is putting a rectangular pool in his backyard. The dimensions of the pool will be 12 ft. by 24 ft. by 5 ft. The contractor building the pool needs to know how much lining he needs before starting to pour the concrete.

Find the x and y intercepts of the graph of the equation x^2 + (y-1) ^2=1