If sin 20 degree=a and cos20 degree=b then which of the following represents the correct value of sin 70 degree in terms of a and/or b?

1) a+b

2) a

3) b

4) a-b

Find the roc of the volume of a cube with respect to the length of its side s

How many 2/3 cups are in a 4 cup container

A circular pond 26 yd in diameter is surrounded by a gravel path 2 yd wide. The path is to be replaced by a brivk walk costing $50 per square yard. Hiw much will the walk cost?

Suppose Phil and Kate decide to drive the sports car to Nashville without stopping and they want to arrive by 5:00pm. What time should they leave their house? It's takes 7 hours and 52 minutes to get to Nashville.

The cost of a certain brand of camera has been increasing at 8% per year. If a camera now costs $150, what is the cost?

If 60% of the students prefer waffles to pancakes. If there are 5 students in the class how many students prefer waffles

How do i write 1.67 in words

What is the common factors of 45 and 54

How do i solve this question x-7; x=23

A giant sequoia (scientific name: Sequoiadendron giganteum) is exactly as its name suggests - giant! Currently, the "General Sherman" tree, thought to be one of the largest giant sequoias in the world, resides in the Sequoia National Park, which is