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2 years ago

A group of three people are selected at random, what is the probability that all the three people have different birthdays.

Mathematics

1 answer:

Tanya [424]2 years ago

5 0

Answer:

1:1

Step-by-step explanation:

this is because they are selected at random 3/3=1

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What is the following quotient? sqrt6+sqrt11/sqrt5+sqrt3

Gnoma [55]

Answer:

√30-√18+√55-√33/2

Step-by-step explanation:

What is the following quotient? sqrt6+sqrt11/sqrt5+sqrt3

Given the expression

√6+√11/√5+√3

Rationalize

√6+√11/√5+√3 × √5-√3/√5-√3

= √30-√18+√55-√33/√25-√9

= √30-√18+√55-√33 /5-3

= √30-√18+√55-√33/2

This gives the required quotient

6 0

2 years ago

Before a renovation, a movie theater had 134 seats. After the renovation, the theater has 188 seats. What is the approximate per

noname [10]

Answer: 40.3%

Step-by-step explanation:

now-before = seats added

188-134 = 54

54/134*100=approx. 49.29% which is rounded to 40.3%

3 0

2 years ago

27 is 3 as many times aswhat number

Andru [333]

27 is 3 as many times the number 9

3 0

2 years ago

Read 2 more answers

According to Greg, perfect cherry pies have a ratio of 240 cherries to 3 pies. How many cherries does Greg need to make 9 perfec

vfiekz [6]

Simple, 3 goes in to 9, 3 times. That would mean that to find the number of cherries, multiply 240 by 3. Greg needs 720 cherries for 9 perfect cherry pies.

6 0

3 years ago

Read 2 more answers

Triangle P R Q is shown. Angle R P Q is 39 degrees. The length of P R is 6, the length of R Q is p, and the length of P Q is 8.

KATRIN_1 [288]

According to law of cosines the length of RQ can be written as $p^{2} =6^{2} +8^{2} -2*6*8cos(39)$ .

Given the length PR is 6 , the length of RQ is p, the length of PQ is 8 and the angle RPQ is 39 degrees.

A length of the triangle can be written as according to law of cosines if sides are given and one angle is $a^{2} =b^{2} +c^{2} -2bccos(A)$

We have to just put the values in the above equation.

as $p^{2} =6^{2} +8^{2} -2*6*8cos(39)$ .

p is the side opposite to angle given , the length of other sides are 6 and 8 and angle is 39 degrees.

Hence the side can be written as according to law of cosines if the angle is 39 degrees is as $p^{2} =6^{2} +8^{2} -2*6*8cos(39)$ .

Learn more about trigonometric functions at brainly.com/question/24349828

#SPJ10

7 0

1 year ago