Điều kiện: nf n f    5; (1 ) 5trong loại kiểm định giả thuyết “so sánh tỷ lệ tổng thể với số cho trước”, (với n là cỡ mẫu, f là tỷ lệ mẫu) có ý nghĩa gì?

mx+89b(-98)nb

step-by-step explanation:

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus

step-by-step explanation:

at each of the parallel lines adjacent angles are supplementary. the angles have special names identifying their positions with respect to the parallel lines and transversal. they are corresponding angles, alternate interior angles, or alternate exterior angles. an angles is congruent to its matched angle.

step-by-step explanation:

classify each pair of angles as alternate interior, same-side interior, or corresponding angles.