There are 50 students in the auditorium. 15 of the students are in 4th-grade, 11 of the students are in 5th-grade, and the rest of the students are in the 6th-grade.
if a student is chosen at random from the auditorium, what is the probability the student will be a 5th-grader?
11%
22%
30%
2.2%

step-by-step explanation:

in which figure is point g a centroid

the workers who do no drive has no reasonable reason to buy gasoline due to they don't have anything to use it for

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629