Aspinner used for a game is divided into 3 sections: yellow, green, and orange. janie spins the spinner 20 times. the spinner lands on green 8 times. what is the experimental probability that the spinner does not land on green?

Step-by-step explanation:

Given : A spinner used for a game is divided into 3 sections: yellow, green, and orange.

Janie spins the spinner 20 times.

The spinner lands on green 8 times.

It means , the number of times it does not land on green section = 20-8=12

Then, the experimental probability that the spinner does NOT land on green :-

∴ Required probability =

3. parallelogram

step-by-step explanation:

we turn each of our sides into direction vectors

ab=b-a=(3 - 7, 1 - 0) = (-4, 1)

bc=c-b=(1,6)

cd=d-c=(4,-1)

da=a-d=(-1,-6)

we see how the opposite sides have negated direction vectors; this is characteristic of a parallelogram.   we have congruent sides ab=cd and bc=da with unequal lengths because 1^2+6^2 is different from (-4)^2+1^2.   so it's not a square or a rhombus.  

we check the dot product of direction vectors of adjacent sides.   we have

ab dot bc = -4(1) + 1(6) = 2

that's not zero so the sides are not perpendicular.   we've ruled out rectangle.

the direction vectors indicate two pairs of congruent parallel sides, so we choose parallelogram over trapezoid.

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!