Algebra
Three consecutive numbers have a sum of 75. What is the smallest number?
The smallest number is 24.
Calculate the leg b for a right-angled triangle with leg a=4 and hypotenuse c=5.
The leg b=3.
2x + 6 =0
x = -3
Expand: (x + 2)(x + 4)
x^2 + 6x + 8
Calculate the hypotenuse of a triangle with legs a=6 and b=8.
The hypotenuse c=10.
Factor: x^2 + 12x + 35
(x + 7)(x + 5)
Name the six trigonometric ratios.
SEE TEACHER.
Expand: (-2x + 5)(5x - 1)
-10x^2 + 27x - 5
Spencer, Neal, and Claire go lastertagging. Neal gets five more than two times the number of kills as Spencer. Claire gets twice as many kills as Neal. If the three of us had 92 kills altogether, how many kills did Claire get?
Claire got 54 kills.
If a right-angled triangle has an angle of 45 degrees and an opposite leg of 8 cm, what is the measure of the hypotenuse?
c=11.32 cm
Factor: x^2 - 16x - 36
(x - 18)(x + 2)
If the average of four consecutive even numbers is 49, what are all four numbers?
46, 48, 50, 52
If a right-angled triangle has an angle of 30 degrees and a hypotenuse of 12 cm, what is the measure of the adjacent leg?
a= 10.39 cm
x^2 - 9x + 18 = 0
x = 6 or x =3
Factor: x^2 - x - 12
(x - 4)(x + 3)