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Ainat [17]
4 years ago
8

Three friends all have same ages that are consecutive integers. The sum of their ages is 57. What is the age of the oldest frien

d?
A) 19 yr old
B) 18 yrs old
C) 21 yrs old
D) 20 yrs old
Mathematics
1 answer:
quester [9]4 years ago
7 0

Answer:

20 yrs old

Step-by-step explanation:

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What’s the correct answer for this?
Pavlova-9 [17]

Answer: choice B

Step-by-step explanation:

Events A and B are independent if the equation P(B)=P(B|A) or P(A∩B) = P(A) · P(B) holds true.

in this example

p(A)=1/6    {5}

p(B)=1/2   {1,3,5}

P(B|A)=1

so

P(B)≠P(B|A)

=>A and B are dependent

8 0
4 years ago
Triangle LMN is positioned inside rectangle LKPN as shown in the diagram. Which is the area of △LMN?
Sati [7]

Step-by-step explanation:

The formula of a triangle is A=½bh

Base=6.5

Height=4.8(since the height if the triangle and the width of the rectangle are same)

A=½(6.5)(4.8)

A=½(31.2)

a =  \frac{31.2}{2}

A=15.6

Therefore, the area of the triangle LMN is 15.6

I hope this helps.

6 0
4 years ago
Help answer this question for 20 points.
lord [1]

Answer:

D semi-sphere with diameter 10

Step-by-step explanation:

Rotating this along line m will give us a semi-sphere with diameter 10 ( radius 5)

It will be half of a ball

7 0
4 years ago
Read 2 more answers
More than 5 Points! Find the area of a triangle, please. :)
Naddik [55]

The area is 27

I hope I'd have helped!

6 0
3 years ago
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The probabiliity of getting exactly one tail is?
Reil [10]

Answer:

50%

Step-by-step explanation:

assuming you are talking about one coin flip (because you didn't specify) you have a 50% chance to land on tails

4 0
3 years ago
Read 2 more answers
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