A family uses 36 gallons of paint the outside of its house. In the backyard, the family has a playhouse that is small-scale replica of the house. Each dimension of the playhouse is 1/4 the size of...

a pilot flies an altitude of 25,000 ft. over level ground. The pilot observes a crater on the ground at an angle of depression of 5 degrees. If the plane continues for 80000 more feet toward the crater,...

I didn't learn this and I am trying to figure it out but don't  know how.

Find a vector which is coplanar with these three vectors and is perpendicular to w     I understand the first part, don't know how to do the second

a circular mirror is 24in. wide and has a 4-in. frame around it. what is the area of the frame? how can you draw a diagram to help solve this problem? what part of a circle is the width? is there...

A median of a triangle is also a cevian of the triangle. TRUE or FALSE     The lines containing the altitudes of a triangle are concurrent. TRUE or FALSE     A...

How far does the tip of the minute hand of Big Ben (the famous clock in London) move from 2:45PM to 3:25PM? The hand is 7.8 feet long from its point of rotation. Give your answer to the nearest tenth...

I have a diagram which shows an equilateral triangle ABC, a square APRC and a right angles triangle CRS with CSR=90 degrees. If B,C and S all lie on the same straight line, find the value of x. I...

Find the volume of a regular triangle pyramid if it has height of 12cm, base edge of 10 cm and height of the triangular base of about 8.7