Find the angle between the vectors. (first find an exact expression and then approximate to the nearest degree.) a = 5, - 1, 7, b = - 2, 4, 3

An arrow is shot upward. Its height h, in feet, is given b the equation h=-16t^2+32+5, where t is the time in seconds. How many seconds does it take until the arrow hits the ground?

What is the wavelength of an earthquake wave if it has a speed of 10 km/s and a frequency of 4 Hz?

The number of students who attended Albany Medical College last year was 1000. This year, attendance has increased to 1350 students. What is this year's student population compared to last year's as a percentage?

X + x over 4 = x + 2 over 3

What is the answer to 800,000 rounded to the nearest hundred thousand

If John starts work at 8.845am and finishes at 5.15pm. He has 90 minutes of break. How many hours does he work in 5 days?

What is 5a=100 i need a answer?

What does 16/6 equal to as a whole number

How do you find the perimeter of a triangle?

What is 120 divided by 3/5