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Studentka2010 [4]
2 years ago
14

Watch help video

Mathematics
2 answers:
alexira [117]2 years ago
8 0

At he love that have been happy

Usimov [2.4K]2 years ago
6 0

Step-by-step explanation:

the basic probabilty of being born with that certain trait is 5/9.

that means the probabilty of being born without that certain trait is 1 - 5/9 = 4/9.

the probability of 2 children being born with that trait and 3 being born without that trait is

5/9 × 5/9 × 4/9 × 4/9 × 4/9

but as you can see, this only covers a specific case, e.g. when the first 2 children have the trait, and the younger siblings don't.

for the general probability of that questioned result we need to multiply this with the number of different combinations : in how many ways can I pick 2 children out of 5, when the sequence of the 2 picked children is irrelevant ?

this is C (5, 2) = 5!/((5-2)!×2) = 5!/(3!×2) = 5×4/2 = 5×2 = 10

so, the probability is

10×(5/9)²×(4/9)³ = 10×5²×4³/9⁵ = 0.270961405...

≈ 0.271

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All i need to know is if its a function or not (I will give branliest for a good explanation)
tankabanditka [31]

Answer:

It's fine. It is a function. The language can be very convoluted. Put simply a domain value cannot have 2 different range values.

Step-by-step explanation:

The confusing part I think, is probably the fact that -1 and 1 both have an answer of 5.

That's fine. Parabolas do that and they are functions. Two different xs can have the same value. The thing that eliminates functions is when the x value (the domain) has two different y values (the range values). Then you don't have a function.

To try and make it clearer if 1 pointed at both 3 and 5 you would not have a function.

8 0
3 years ago
Please help on the area for 7 8 9 please all i need help is
weeeeeb [17]

The area of the equilateral, isosceles and right angled triangle are 12.6mm², 9.61in² and 16.81yds² respectively.

<h3>What is the area of the equilateral, isosceles and right angle triangle?</h3>

Note that:

The area of an Equilateral triangle is expressed as A = ((√3)/4)a²

Where a is the dimension of the side.

The area of an Isosceles triangle is expressed as A = (ah)/2

Where a is the dimension of the base and h is the height.

The area of a Right angled triangle is expressed as A = (ab)/2

Where a and b is the dimension of the two sides other than the hypotenuse.

For the Equilateral triangle.

Given that;

  • a = 5.4mm
  • Area A = ?

A = ((√3)/4)(5.4mm)²

A = ((√3)/4)( 29.16mm² )

A = 12.6mm²

Area of the Equilateral triangle is 12.6mm²

For the Isosceles triangle.

Given that;

  • Base a = 3.4in
  • Slant height b = 5.9in
  • height h = ?
  • Area A = ?

The height h is the imaginary line drawn upward from the center of a.

First, we calculate the height using Pythagorean theorem

x² = y² + z²

Where x = b = 5.9in, y = a/2 = 3.4in/2 = 1.7in, and z = h

(5.9in)² = (1.7in)² + h²

34.81in² = 2.89in² + h²

h² = 34.81in² - 2.89in²

h² = 31.92in²

h = √31.92in²

h = 5.65in

Now, the area will be;

A = (ah)/2

A = (3.4in × 5.65in )/2

A = 19.21in²/2

A = 9.61in²

Area of the Isosceles triangle is 9.61in².

For the Right angled triangle

Given that;

  • a = 8.2yds
  • b = 4.1yds
  • c = 9.17yds
  • Area A = ?

A = (ab)/2

A = ( 8.2yds × 4.1yds)/2

A = ( 33.62yds²)/2

A = 16.81yds²

Area of the Right angled triangle is 16.81yds²

Therefore, the area of the equilateral, isosceles and right angled triangle are 12.6mm², 9.61in² and 16.81yds² respectively.

Learn more about Pythagorean theorem here: brainly.com/question/343682

#SPJ1

6 0
2 years ago
an apple and a banana cost $2.10 the apple is $2.00 more than the banana how much does the banana cost
Korolek [52]
$2.10 - $2 = $0.10

The banana cost 10 cents.
8 0
3 years ago
144% of what number is 54?
Alik [6]

Answer:

37.5

Step-by-step explanation:

37.5×144/100=54 the number is 37.5

6 0
1 year ago
Ben sold his small online business for $100,000. The purchaser will pay him $20,000 today, then $20,000 every year for the next
kifflom [539]

Answer:

c. 92,598

Step-by-step explanation:

20000 + 20000/1.04 + 20000/(1.04^2) + 20000/(1.04^3) + 20000/(1.04^4)= 20000 + 19230.77 + 18491.12 + 17779.73 + 17096.08

= 92597.

= 92,598

7 0
3 years ago
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