3. Cornelia spends 2 2/3 hours studying for her big science test. She spent 2/3 of an hour finishing her writing assignment and 1/4 of an hour playing outside. How much time did she spend overall on the three activities?

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

Solve, using the substitution method. y = 4x + 6 5x - y = 6

Consider triangle ABC. The legs have a length of 5 units each. Triangle A B C is shown. Angle A C B is a right angle. The lengths of sides A C and C B are 5. The length of the hypotenuse c is unknown.

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?