If we consider the toss of four coins as an experiment, how many equally likely outcomes does the sample space have?
The no. of equally likely event is 10.
What is probability ?Probability is chance of occurrence of a certain event out of all the possible events that can occur in a given situation.
According to the given question Tossing of four coins simultaneously as an experiment let us find he sample space and assuming that all these 4 coins are unbiased.
S = { HHHH, HHHT, HHTT, HTTT, TTTT, TTTH, TTHH, THHH, HTTH, THHT }.
∴ N(s) = 10.
As these 4 coins are unbiased there for all the events in the sample space are equally likely to happen.
So, The no. of equally likely outcome is 10.
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please helppp its too hard!!!
which equation represents a proportional situation?
A. y = 9x
B. y = -2x + 23
C. y = - 3x + 4
D. y = 3x - 12
Leanne can clean a fish tank in 30 minutes. Karl can clean a fish tank in 20 minutes. If they work together, how many minutes does it take them to clean a fish tank? (2 points)
Answer:
12 minutes
Step-by-step explanation:
Just took the test and got it right
According to Coldwell Banker Real Estate Corporation, a home selling for $189,000 in Austin, Texas, would sell for $437,850 in Denver, Colorado. How much would a $350,000 home in Denver sell for in Austin? Round to the nearest $1000.
Can you please help me?
The angle of inclination of a ramp is 6° and the ramp is 14 feet long. Approximately how high off the ground is the end of the ramp? 0.8 ft 1 ft 1.5 ft 1.8 ft
Answer:
1.463 ft.
Step-by-step explanation:
As you can see in the image, we can use the sin(6) to calculate the high.
sin(6°) = x/14
x = sin(6°)*14
x = 1.463 ft.
Two jets leave an airport at the same time, flying in opposite directions. The first jet is traveling at three hundred seventy-seven mph and the other at two hundred seventy-five mph. How long will it take for the jets to be 9128 miles apart?
Explain how you know 21/100 is greater than 1/5
This problem can be solved using equivalent fractions. The first step in resolving this problem is to realize that fractions are best compared when they both have the same denominator. In this case, I will choose to make that common denominator 100. There is no need to rewrite the fraction [tex]\frac{21}{100}[/tex] as the denominator for this fraction is already 100. The fraction [tex]\frac{1}{5} =\frac{20}{100}[/tex] . This is achieved by multiplying both the numerator and denominator by 20. Now that the two fractions have the same denominator, we can easily see that [tex]\frac{21}{100}[/tex] is greater than [tex]\frac{1}{5}[/tex] because it is greater than its equivalent fraction.
Please help, math question.
Identify the variable and the categories represented in this problem. Set up and fill in a two-way table to represent the frequencies in this problem.
Find the length of a rectangle with area of 16 sq. cm. and width of 8 cm.
2 cm
8 cm
128 cm
A player shoots a basketball from a height of 6 feet. The equation, h = -16t 2 + 25t + 6, gives the height, h , of the basketball after t seconds. Describe the height, rounded to the nearest tenth of a foot, of the basketball after 1.5 seconds, assuming no other player touches the ball.
Answer:
The height of the ball after t =1.5 second is 7.5 feet.
Description:
The basket ball shoots from a height of 6 feet, it increase the height 1.5 feet after 1.5 seconds.
Therefore, the basketball thrown at the rate of 1 feet/per second.
Step-by-step explanation:
Given: A player shoots a basketball from a height of 6 feet. The equation,
h(t) = [tex]-16t^2 + 25t + 6[/tex]
We need to find the height of the ball when t = 1.5 and describe the height.
plug in t = 1.5 in h(t) = [tex]-16t^2 + 25t + 6[/tex]
h(1.5) = [tex]-16(1.5)^2 + 25(1.5) + 6[/tex]
Simplifying the above expression, we get
h(1.5) = -36 + 37.5 + 6
h(1.5) = -36+43.5
h(1.5) = 7.5 feet
The height of the ball after t =1.5 second is 7.5 feet
Description:
The basket ball shoots from a height of 6 feet, it increase the height 1.5 feet after 1.5 seconds.
Therefore, the basketball thrown at the rate of 1 feet/per second.
how many solutions 2x+3y=-3 and 3x + 5y = -9
find the 8th term of the expansion of (1/2x-y)^10
a 5x^3y^7
b 70x5y5
c -14x3y7
d -15x3y7
Answer:
d. [tex]-15x^3y^7[/tex]
Step-by-step explanation:
By the binomial theorem,
[tex](p+q)^n=\sum_{r=0}^{n} ^nC_r (p)^{n-r} q^r[/tex]
Where,
[tex]^nC_r=\frac{n!}{r!(n-r)!}[/tex]
Thus,
[tex](\frac{1}{2}x-y)^{10}=(\frac{x}{2}+(-y))^{10})=\sum_{r=0}^{n} ^10C_r (\frac{x}{2})^{10-r} (-y)^{r}[/tex]
For the 8th term, r = 7,
Thus, the 8th term would be,
[tex]^{10}C_7 (\frac{x}{2})^{10-7} (-y)^{7}[/tex]
[tex]=\frac{10!}{7!(10-7)!} (\frac{x}{2})^3 (-y)^7[/tex]
[tex]=-\frac{10\times 9\times 8}{3\times 2\times 1}\times \frac{x^3}{8}\times y^7[/tex]
[tex]=-\frac{720x^3y^7}{48}[/tex]
[tex]=-15x^3y^7[/tex]
Hence, option 'D' is correct.
Which of the following graphs represents the equation x >-3y+9
A triangle shaped paper’s height is 18 cm and width is 10 cm. Find the hypotenuse of the paper.
The hypotenuse of the paper is 2√106 cm.
What is Pythagorean theorem ?
Hypotenuse ² = Height ² + Width ²
Know more about Pythagorean theorem,
The Pythagorean Theorem, also known as the Pythagoras Theorem, explains the relationship between the three sides of a right triangle. According to the Pythagorean theorem, the square of the hypotenuse is equal to the sum of the squares of the other two sides of a right triangle. Pythagorean triangles are the name given to the sides of a right triangle. Let's learn about Pythagorean theorem, formula, derivation and examples in detail.
The history of the Pythagorean theorem goes back to the ancient Babylonian and Egyptian era. The Greek mathematician Pythagoras of Samos introduced the Pythagorean theorem. Pythagoras was born in 570 BC. The Greek philosopher studied with other monks and formed a group of people; he finally stated the Pythagorean theorem. Even before Pythagoras, the ratio was shown on a Babylonian tablet 4000 years ago, but the theorem is published under the name of Pythagoras.
Here given, a triangle shaped paper’s height is 18 cm and width is 10 cm.
We want find the hypotenuse of the paper ?
Here, height of the paper = 18 cm and width of the triangle = 10 cm.
[tex] = {18}^{2} + {10}^{2} \\ = 324 + 100 \\ = 424[/tex]
So,
[tex]hypotenuse = \sqrt{424} \\ = \sqrt{2 \times 2 \times 2 \times 53} \\ = 2 \sqrt{2 \times 53} \\ = 2 \sqrt{106} \: cm[/tex]
Therefore,the hypotenuse of the paper is 2√106 cm.
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Which of these examples is an error of addition by one?
A. 46,371 + 32,618 = 78,989
B. 38,273 + 51,425 = 89,798
C. 13,246 + 84,631 = 97,877
D. 52,634 + 25,145 = 77,779
Answer: B. 38,273 + 51,425 = 89,798
Step-by-step explanation:
Let's check all the sum by adding their corresponding places.
A. [tex]46,371 + 32,618 = 78,989[/tex]
Its correct.
B. [tex]38,273 + 51,425 =89698\neq 89,798[/tex]
Here when we add the digits on the hundredth place we get 6 not 7.
Hence, it is the example of an error of addition by one.
Its correct.
C. [tex]13,246 + 84,631 = 97,877[/tex]
Its correct.
D. [tex]52,634 + 25,145 = 77,779[/tex]
Its correct.
In which graph does y vary directly as x? It’s not C, I got it wrong.
Four gallons of paint are used to paint 25 chair. If each chair used the same amount of paint how many gallons are used to paint each chair? Between what two whole number does your answer lie
Find the number that is smaller than 5 5/12 by as much as 2 2/13 is smaller than 6 1/6
Answer: the number is x = 1 + 21/52
Step-by-step explanation:
we have
(5 + 5/12) - x = (6 + 1/6) - (2 + 2/13)
this means that x is smaller than 5 + 5/12 by the same amount as (2 + 2/13) is smaller than (6 + 1/6)
We can solve it directly, first solve the parentheses, put the whole numbers at one side and the fractions in the other side:
5 - 6 + 2 - x = -5/12 + 1/6 - 2/13
1 - x = -5/12 + 2/12 - 2/13
1 - x = -3/12 - 2/13 = -1/4 - 2/13 = -13/(4*13) - (2*4)/(4*13) = -21/52
x = 1 + 21/52
Answer:
73/52
Step-by-step explanation:
WILL GIVE BRAINLIEST!!!!!!!!!!!!!! Select the points that are solutions to the system of inequalities. Select all that apply
The points that are solutions to the system of inequalities is ( -12,0), (-10,1), the correct option is A and C.
What is System of Inequalities?The system of Inequalities are the set of inequalities that have a common solution.
The solution of the set of Inequalities can be obtained by plotting a graph and finding the common area.
The solution to the system of inequalities is shown in the graph.
The points that are solutions to the system of inequalities is
( -12,0)
(-10,1)
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The following question has two parts. First, answer part A. Then, answer part B.
Isabella's mother has a garden with a total area of
10/23 square feet. She plans her planting season like this:
1/4 of the garden will be used for planting peas. And,
3/4 of the garden will be used for planting corn.
which values are solutions to the inequality below? check all that apply
What is the probability that a unit chosen at random has between four and six rooms?
If carleys mows the lawn for 2 weeks Ina row and does her chores 7 weeks straight how many more weeks will she need
Use the parabola tool to graph the quadratic function f(x)=x^2+10x+24.
Graph the parabola by first plotting its vertex and then plotting a second point on the parabol
Answer:
See the attachment
Step-by-step explanation:
You want a graph of the parabola defined by f(x) = x² +10x +24.
VertexWe can add and subtract the square of half the x-coefficient to put the equation into vertex form:
f(x) = x² +10x +24 . . . . . . . . . . given
f(x) = x² +10x +25 +24 -25 . . . . add and subtract (10/2)² = 25
f(x) = (x +5)² -1 . . . . . . . . . write in vertex form
Comparing to the vertex form equation f(x) = (x -h)² +k, we see that ...
(h, k) = (-5, -1).
These are the coordinates of the vertex.
Another pointThe coefficient of x² is 1, so another point can be found by adding (1, 1) to the vertex. That means a second point on the parabola is ...
(-5, -1) +(1, 1) = (-4, 0)
GraphThe attached graph shows the parabola with vertex (-5, -1) through point (-4, 0).
__
Additional comment
When the coefficient of x² is not 1, the process is a little different. If you start with f(x) = ax² +bx +c, you can factor 'a' from the first two terms to help you get vertex form.
f(x) = a(x² +(b/a)x) +c
f(x) = a(x² +(b/a)x +(b/(2a))²) + c - a(b/(2a))²
f(x) = a(x +b/(2a)x)² +(c -b²/(4a))
The vertex is (-b/(2a), c -b²/(4a)).
The second point can be found by adding (1, a) to the vertex coordinates.
Help please help I need help please like pretty please btw this is on mobile
A 60 kg dog requires fluids at 50 mL/kg over 24 hours. Using a 10 gtt/mL set how many gtts/min will you set?
To set the infusion rate for a 60 kg dog, calculate the total fluid needed (3000 mL), the total number of drops (30,000 gtts), and then determine the drops per minute (20.83 gtt/min), rounding to approximately 21 drops per minute.
To calculate the infusion rate for a 60 kg dog that needs 50 mL/kg of fluids over 24 hours using a 10 gtt/mL set, follow these steps:
Firstly, calculate the total volume of fluids required by the dog:Therefore, you will set the infusion to approximately 21 drops per minute (rounding to the nearest whole number).
what is the length of AC?
Quadrilateral ABCD is inscribed in a circle. Find the measure of each of the angles of the quadrilateral. Show your work.