If isosceles △DEF has sides of length 11.5 and 13.7 m which of the following cound be the perimeter of the trigangle?
The base of a triangle is twice its height, which is 5cm . What is the area , in square centimeters, of the triangle?
On his way home from shopping. Monika must travel due south for 5 miles and due east for another 12 miles to reach his mouse. If she could travel in a straight line from the would she travel?
Two ships are sailing in the sea on the two sides of a lighthouse . The of elevation of the top of the lighthouse an observed from the two ships are 30 degree and 45 degree respectively . If the lighthouse is 100 m high, the distance between the two ships is-
A car got 33 miles per gallon using gasoline that coast $295 per dollars. Approximatley what was the cost , in dollars, of the gasoline used in driving the car 350 miles?
A certain jar contain 60 jellybeans where 22 white, 18 green, 11 yellow, 5 red and 4 purple . If a jellybean is to be chosen at random , what is the probability that the jellybean will be neither red not purple?
The radius of circle A is r, and the radius of circle B is 3/4r. What is the ratio of the area of circle A to the area of circle B?
5a2-4a-3-3(a2+a+4)=0. What is the sum of the potable value of a?
Two sides of a triangle are 7 and 16. Which of the following is not the length of the third side?
If 6 students have an average (arithmetic mean) score of 88 on an exam, and one of those students scored a 93 on the exam, what is the average score on this exam for the other 5 students?