Scores, a) the mean
b)
the median
24. The average age of 9 boys in a class is 15
years. If another boy of age 13 years joins
the class, what is the average of the 10
boys?
25. The scores of 10 students in an
follow A5 12

8y^50

step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

answer: its the third option.

step-by-step explanation:

i just took the test.

answer: the resulting cross section is a rectangle. solution: a plane parallel to the base of a triangular prism will intersect a cross section that is the same shape as its bases. so the cross section is a triangle.

step-by-step explanation: