Ted tossed a coin several times and recorded the number of heads and tails in the following table: Coin Experiment Side of Coin Number of Tosses Heads 18 Tails 22 What is the experimental probability of getting heads? 0.18 0.22 0.35 0.45

answer:

Correct answer is "D"0.45

Step-by-step explanation:

The results of the experiment are given as follows:

Coin Experiment Side of Coin Number of Tosses

                             Heads                           18

                              Tails                             22

This means that total 40 experiments were performed.

( Since 18+22=40)

Also, the number of times head turn up=18

Hence, the experimental probability of getting heads is:

Ratio of number of times head turn up to the total number of experiments performed.

Hence,

  Hence, the experimental probability of getting head is:

                                        0.45

*Hope this help

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answer:

18 + 22 = 40 tries. 18 of those are heads so 18÷40=0.45

Step-by-step explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft