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Alex73 [517]
3 years ago
6

(b^4)^2 need help plz

Mathematics
1 answer:
lisov135 [29]3 years ago
6 0
<span>(b^4)^2 = b^(4x2) = b^8

answer
b^8</span>
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HELPPP PLZZZ IM CRYINGGGG HELPPPPPPPP
Goryan [66]

1) Experimental probability of drawing a Club = 9 / 40

The experimental probability is the probability of the event occurring in the experiment. You use your results to find the experimental probability. This is over the total amount of trials. In this experiment, 9 clubs were drawn. Thus, the experimental probability of drawing a club is 9 / 40.

2) Relative frequency of drawing a Spade = 1 / 5

Relative frequency is the same as experimental probability. You use your results and set the experiment number over the total number of trials. Thus, the relative frequency of drawing a Spade is 8 / 40, or 1 / 5.

3) Theoretical probability of drawing a Heart = 1 / 4

The theoretical probability is the expected probability. There are 13 hearts out of a full deck of 52 cards. Thus, the theoretical probability of drawing a heart is 13 / 52 or 1 / 4.

4) Theoretical probability of drawing a Club or Diamond = 1 / 2

The theoretical probability is the probability that is expected. In this scenario, it will be the number of clubs plus the number of diamonds in a deck of cards over the total number of cards in a full deck. And, or means that either probability could occur and we should add. Thus, the theoretical probability of drawing a club or diamond is 26 / 52 or 1 / 2.

5) The difference between experimental and theoretical probability is that experimental probability is the probability of an event occurring based on your experiment and results. The theoretical probability is the expected probability of an event occurring. It is not based on your experiment, and in a completely fair experiment, would be the probability of an event occurring. For example, flipping a coin. The theoretical probability of getting heads when you flip a coin is 0.5. But say in your experiment of 50 trials you get heads 15 times. The experimental probability would be 15 / 50.

Hope this helps!! :)

5 0
3 years ago
There are 39 boys and 23 girls in a dance group. Every week, 6 boys and 8 girls join the group and no one leaves the group. What
lina2011 [118]

Answer:

The total number of girls is 174

Step-by-step explanation:

8 0
2 years ago
If in drawing your vector you are required to use a scale such that 25 grams represent 1 cm, and if your resultant vector measur
Aleks04 [339]

If we multiply the ratio

... 25 g : 1 cm

by 5, we get

... 125 g : 5 cm

The number on the left is 75 g more than 50 g.

6 0
3 years ago
Nick and Liz have decided to move from the city to the suburbs. This means that they will have to make the essential purchase of
sineoko [7]

Answer:

$=19400

Step-by-step explanation:

Average prices= $18,500

Number of prices that were quoted= 7

Expected sum that produces this mean= 7*18,500=$129,500

Sum of quoted prices=

$(15,500+ 18,800+ 16,900+ 19,900+18,000+21,000) =$110100

Next price to be quoted will be ;

$129,500-$110,100

$=19400

6 0
3 years ago
Solve sin^2x+cos2x-1/4=0
sweet-ann [11.9K]
sin^{2}x + cos2x - \frac{1}{4} = 0
sin^{2}x + cos^{2}x - sin^{2}x = \frac{1}{4}
cos^{2}x = \frac{1}{4}
cos(x) = \pm \frac{1}{2}

x = \pm \frac{\pi}{3}
General solutions: x = \pi(n - \frac{1}{3}) and x = \pi(n + \frac{1}{3})
8 0
3 years ago
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