A - area of a trapezoid;
a, b - two bases.
A = h * ( a + b ) / 2 / * 2 ( we have to multiply both sides by 2 )
2 A = h *( a + b )
2 A = h a + h b
h b = 2 A - h a
b = ( 2 A - h a ) / h
b = 2 A/h - a
Answer: D )
If you would like to know what is the solution of the inequality x/3 > 1, you can calculate this using the following step:
x/3 > 1 /*3
x > 1 * 3
x > 3
The correct result would be x > 3.
Answer: 2/8
Step-by-step explanation:
The probability that the marbles are white or grey is 2/8 because since there is 2 marbles and the total is 8 so you have a probability of 25% to get white or gray
Answer:
23
Step-by-step explanation:
225/25 = 21
21+2=23
