A balloon rises straight up at 10ft/s an observer is 40 ft away from the spot where the balloon left the ground. Find the rate of change (in radians per second) of the balloon's angle of elevation when the balloon is 30 ft off the ground.

What is the greatest common factor for (3x2+xy) ?

How would you find the volume of a rectangular prism with length of 1/4 inches, a width of 1 1/4 inches, and height of 4

Chris is trying to prove that triangle LMN is congruent to triangle PQR. He is given that Line LN is congruent to Line RP, and Angle MNL is congruent to Angle QRP. He wants to use the ASA Postulate to prove that the triangles are congruent.

For the funcations f (x) = 2x-6 and g (x) = 5x+1 which composition produces the greatest output

A square has sides of 15 feet how much fencing would be needed

Scientific notation Express this number in standard form. 1.304 x 107 = ?

Erick's dog house has an area of 15 feet. What is the perimeter of the house

Whats the gcf and sum of 49+63

Sunita creates a scale model of an aeroplane. The scale of the model is 5 cm to 8 m. Sunita's model has a wingspan of 41 cm. What is the wingspan of the real aeroplane?

Describe the slips of perpendicular lines