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3 years ago

I need the answer. Pls∝∝∝∝

Mathematics

2 answers:

Yakvenalex [24]3 years ago

6 0

Answer: it is going to be (B)

Ipatiy [6.2K]3 years ago

6 0

Answer:

C.256

Step-by-step explanation:

2(lb+bh+hl) = SA

length = 12

width = 4

Height = 5

2( 48+60+20)

128 x 2 = 256

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Karl’s math class is playing a number game. Each student is given a number card containing the numbers 1 to 6. The rules of the

Lena [83]

By finding the probability, we can expect that 2 out of the 30 students will win the prize.

<h3>How many of the 30 students will win the prize?</h3>

First, we should get the probability of winning this game.

Here the students select two numbers out of 6, just to make the calculations let's say that these numbers are 1 and 2.

Now, we need to get these two numbers in two balls. The probability of getting the ball with the number 1 out of the 6 balls is:

p = 1/6

The probability of getting the ball with the number 2 out of the remaining 5 balls (because we already got one) is:

q = 1/5

The joint probability is then:

P = 2*(1/6)*(1/5) = 1/15.

Where the factor 2 comes to take in account the permutations, for the case where we first draw the number 2 and then the number 1.

Then the expected number of students that will win is equal to the probability times the total number of students:

(1/15)*30 = 2

So out of the 30 students, we can expect that 2 will win.

If you want to learn more about probability:

brainly.com/question/25870256

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8 0

2 years ago

A circle has a diameter of 14cm. What's the circumfrence?

vesna_86 [32]

I believe that when finding the radius of a circle you half the diameter, but when finding the circumference of a circle you need to multiply the diameter (14cm) by pi.

So 14xpi= 43.98229715

But it can be simplified/ rounded to 44cm.

Of course I might be incorrect so do please correct me if I am wrong.

7 0

3 years ago

Mr. Charles cut fresh roses from his garden and gave 10 roses to his neighborhood. then gave half of what was left to his niece.

Vlad [161]

14+14=28
28+10=38 roses

8 0

3 years ago

Read 2 more answers

I need help n pls explain

WARRIOR [948]

Answer:

The correct option is C). When it was purchased, the coin was worth $6