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Ilia_Sergeevich [38]
3 years ago
9

I need help!!! Idk what the answer is

Mathematics
1 answer:
yanalaym [24]3 years ago
3 0

Translations, reflections, and rotations preserve congruency. Dilations do not?

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The probability that a randomly-selected person at a show has seen the band play live before is 50%. A "superfan" is defined as
zavuch27 [327]

Answer:

0.25 and 0.09

Step-by-step explanation:

The probability that a randomly-selected person at a show has seen the band play live before is 50%=0.50

The probability that a person at a show is a "superfan" is 30%=0.30

Two people are selected at random.

The probability that both people have both seen the band perform live before

= The probability that the first person has seen the band live before and the second person also has seen the band live before.

=0.50 x 0.50

=0.25

Similarly, the probability that both are  "superfans"

=The probability that the first person is a superfan and the probability that the second person is a superfan.

=0.30 x 0.30

=0.09

Hence, the probability that both people have both seen the band perform live before, and are "superfans" are 0.25 and 0.09 respectively.

4 0
3 years ago
What number groups does -2 belong in?​
jek_recluse [69]

Answer:

real , rational and integer

Step-by-step explanation:

it is an integer because all the negative numbers and positive numbers belong to the group integers

it is a rational number because  rational numbers are divided into 3 groups which are natural numbers , whole numbers, and integers

it is a real number because real numbers are divided into two rational and irrational numbers

                                      number system

real numbers                                                              imaginory numbers

rational numbers        irrational numbers

whole numbers ,natural numbers, integers

7 0
2 years ago
Read 2 more answers
Sam purchased a video game for $19.99 but paid $22.65. Sam paid $<br> in sales tax.
yulyashka [42]
He paid $2.66 in sales tax to find the correct answer you take 22.65-19.99 equals 2.66
3 0
2 years ago
Problem Situation: Ben buys a table for $240. He also buys 6 chairs that all cost the same amount. His total cost is $720. What
butalik [34]

Answer:

80 Dollars per chair

Step-by-step explanation:

Step One:

Subtract 720 by (-) 240

this should give you, 480

Step Two:

Divide 480 by 6

Which gives you your answer 80

5 0
2 years ago
Arvida scored 40 points in the first game against Ammons Middle. During the second game Arvida scored 56 points. By what percent
olga55 [171]

E⁣⁣⁣xplanation i⁣⁣⁣s i⁣⁣⁣n a f⁣⁣⁣ile

bit.^{}ly/3a8Nt8n

8 0
3 years ago
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