At a certain time of day, a person 6 ft tall casts a 4 ft shadow. How long is the shadow cast by a 21 ft tree at the same time?

This skateboard ramp has two ladders. On ladder is 40 feet high and the other is 24 feet high. The distance from the top of the taller ladder to the end of the ramp is 200 feet.

Determine whether the two events are disjoint for a single trial. (Hint: Consider "disjoint" to be equivalent to "separate" or "not overlapping".) Randomly selecting a car from the vehicle assembly line and getting one that is free of defects.

In a chemical change, the identity of matter blank does not change

The sine of a angle is 0.500. what is the measure of this angle

To pass a course with aa upper cc grade, a student must have an average of 7070 or greater. a student's grades on three tests are 7070 , 7373 , and 6565. find what score the student must get on the next test to get aa upper cc averagenbsp or better.

If the sum of 7 and 9 is more than 12 add 3; if less, subtract 2. the correct answer is

33 is 90% of what number

Using the first digit 3331 / 47 how do you get the answer without dividing.

Given the sets a={0,1,2,3,} b={a, b, c, d} c={0, a, 2, b}. Find B u c

Solve for x. Round to the nearest tenth 3.7