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taurus [48]
3 years ago
6

What is the probability of getting two heads and two tails in four flips of a fair coin?

Mathematics
1 answer:
jekas [21]3 years ago
3 0
Number of  combinations possible = 4! / 2! 2! =  6

Each of these has probability 1/2*1/2*1/2*1/2  = 1/16

Required probability  = 6  * 1/16  = 3/8
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Edward wants to put a string of light around a rectangle window that is 32inches wide and 40 inches how long will the string of
AURORKA [14]

Answer: The string of lights will have to be 144 inches long


Step-by-step explanation:


6 0
3 years ago
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4. Which value for x makes the sentence true?<br> 3x - 8 = 16<br> x=
zzz [600]

Answer: x = 8

Step-by-step explanation:

This is a very, very, very simple algebra problem. I assume you know the basics of algebra.

First, move 8 to the other side:

3x = 24

divide by 3 on both sides

x = 8

There! Would it kill you to give me a quartic question to spice my life up?

4 0
1 year ago
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Write the standard form of the line that passes through the given points. Include your work in your final answer. Type your answ
enot [183]

2x - 3y = - 13

the equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

First obtain the equation in slope-intercept form

y = mx + c ( m is the slope and c the y-intercept )

calculate m using the gradient formula

m = ( y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (1, 5 ) and (x₂, y₂ ) = (- 2, 3 )

m = \frac{3-5}{-2-1} = \frac{-2}{-3}= \frac{2}{3}

y = \frac{2}{3} x + c ← partial equation

to find c substitute either of the 2 points into the partial equation

using (1, 5 ), then

5 = \frac{2}{3} + c ⇒ c = \frac{13}{3}

rearrange the equation into standard form

multiply through by 3

3y = 2x + 13 ( subtract 3y and 13 from both sides )

2x - 3y = - 13 ← in standard form


3 0
3 years ago
Read 2 more answers
In A 4 year period, About 80,000 acres of coastal wetlands in United States are lost each year. what integer represents the tota
mixer [17]

we are given

In A 4 year period, About 80,000 acres of coastal wetlands in United States are lost each year.

so, total area =80000 acres

total time = 4 years

now, we can use formula

total change in wetlands = ( total area)/(total time)

now, we can plug values

total change in wetlands is

=\frac{80000}{4} acre/year

=20000 acre/year................Answer


3 0
3 years ago
Plz help so i can talk to friends
viktelen [127]
9.
A quadrilateral has 4 vertices. If you add two bases, its like adding two vertices. 4+2=6. A figure that has 6 vertices is a hexagon, so the answer is hexagon.

10.
Rhombus


Good luck!
4 0
3 years ago
Read 2 more answers
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