A carpenter needs to measure the length of the beams that will support a roof. The building is 50 feet wide. The roof will rise at
an angle of 30° from the top of the walls. The peak of the roof is
14.43 feet above the top of the walls. The side adjacent to the 30
angle is half the width of the building.
1)How long is each support beam, b, to the nearest thousandth?
2). Add 2 feet to the beam length so that the roof can extend 2
feet past the walls. What is the total beam length?
3). What is the cosine of 30°?
Round all side lengths to the nearest thousandth and round angle
measures to the nearest degree.

On the way home from visiting his family, vincent’s plane cruised at an altitude of 3.2 × 10^4 feet. he had heard that a man named felix baumgartner skydived from an altitude of 1.28 × 10^5 feet. vincent wants to know how much higher felix went on his skydiving trip. question 1 you have already seen how adding numbers works in either scientific notation or standard notation. but can you subtract numbers in scientific notation and get the same results as subtracting in standard notation? to find out, first solve vincent’s problem in standard notation. part a write the cruising altitude of vincent’s plane in standard notation.

Which shows one way to determine the facts of x3+4x2+5x+20 by grouping

What number gives you a irrational number when added to 2/5