According to this definition given below, we identify all lines and rays as follows, EA, EB, EC, and ED are rays, and ED and BE are, Line.
A line is, it is actually difficult to give a good mathematical definition. Roughly, we can say that a line is an infinitely thin, infinitely long collection of points extending in two opposite directions. When we draw lines in geometry, we use an arrow at each end to show that it extends infinitely.
A line can be named either using two points on the line (for example, AB←→ ) or simply by a letter, usually lowercase (for example, line m ).
A line segment has two endpoints. It contains these endpoints and all the points of the line between them. You can measure the length of a segment, but not of a line.
___
A segment is named by its two endpoints, for example, AB.
A ray is a part of a line that has one endpoint and goes on infinitely in only one direction. You cannot measure the length of a ray.
A ray is named using its endpoint first, and then any other point on the ray (for example, BA−→− ).
according to this definition, EA EB EC ED are rays, and ED, and BE are Line
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Do You Understand?
1. For 0.25 +1.037, why do you line up
the decimal point instead of lining up
the 7 and the 5?
We line up the decimal point so that the place value of other number does not changes.
A decimal is a number with an integral part and a fraction.Decimal numbers are between integers and represent the numerical values of quantities that are wholes and parts of wholes.Adding and subtracting decimal numbers is the same as adding and subtracting whole numbers. The most important thing to remember is to align the decimal places directly on top of each other when stacked. This stacks the digit values so that 1 is above 1, , the tens on the tens, the tenths on the tenths,, and so on. Note that if a number does not have the same number of decimal places as other numbers, you can pad all the digits to the right of the decimal point with zeros. Numerically, this looks like 3.15 = 3.150 = 3.150000000.
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3. Given the function h(x) = 3x^2 - x^3 + 10x - 7 solve this by doing Inversed
Answer:
h(x) = 3x^2 - x^3 + 10x - 7 == 2
Step-by-step explanation:
The speed of the current in a river is 5 miles per hour. It takes 40 minutes longer for a girl to paddle a canoe 1. 2 miles upstream than the same distance downstream. What is her speed in stillwater?.
Speed in still water= [tex]\sqrt{43}[/tex]miles
Let take the speed in still water be x and the speed of current in the river be y.
The speed of the current in a river= 5 miles
Let the distance be s which is 1.2 miles.
The time(t) difference is 40 minutes.
We have an equation,
[tex]\frac{s}{x-y}[/tex] - [tex]\frac{s}{x+y}[/tex] = t
[tex]\frac{1.2}{x - 5}[/tex] - [tex]\frac{1.2}{x + 5}[/tex] = [tex]\frac{40}{60}[/tex]
1.2 × 60(2 × 5) = 40([tex]x^{2}[/tex] - 25)
x =[tex]\sqrt{43}[/tex]
Therefore the speed in still water is [tex]\sqrt{43}[/tex].
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Sasha is aware that in the past few months her hips have become wider and her breasts have started to increase in size. these changes are due to?
Answer:
Probably puberty
Solve the compound inequality of 3b + 2 < 5b - 6 ≤ 2b + 9
The solution for the compound inequality is 4 < b ≤ 5.
Inequality
It is an expression mathematical that represents a non-equal relationship between a number or another algebraic expression. Therefore, it is common the use following symbols: ≤ (less than or equal to), ≥ (greater than or equal to), < (less than), and > (greater than).
The solutions for inequalities can be given by: a graph in a number line or numbers.
The question gives:
3b + 2 < 5b - 6 ≤ 2b + 9
You can write the previous compound inequality as:
3b + 2 < 5b - 6 (1)
5b - 6 ≤ 2b + 9 (2)
For inequality 13b + 2 < 5b - 6
3b-5b < -6 -2
-2b < -8
2b >8
b >4
For inequality 25b - 6 ≤ 2b + 9
5b-2b ≤ 9+6
3b ≤ 15
b ≤ 5
Combining the intervals, you have 4 < b ≤ 5.
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Use the properties of logarithms to evaluate each expression.
log₂96- log₂3
Using the properties of logarithm the value of the expression is [tex]log_{2} 96 - log_{2} 3 = 5[/tex]
A logarithm is the power to which a number must be raised in order to get some other number.
According to the question we have been given the expression as
= [tex]log_{2} 96 - log_{2} 3[/tex]
The properties of logarithm that we are going to use are :
[tex]log(\frac{x}{y} ) = logx - logy[/tex] and [tex]log_{a} a = 1[/tex]
Also we can see that the base are same so we can use the property of logarithm in the given equation.
Now solving this step by step using the properties of logarithm we get
[tex]= log_{2} \frac{96}{3} \\= log_{2} 32\\= log_{2} 2^{5}\\ = 5* log_{2} 2\\= 5*1\\= 5[/tex]
Hence using the properties of logarithm the value of the expression is
[tex]log_{2} 96 - log_{2} 3 = 5[/tex]
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a. Solve 3-√(x-3)=x algebraically.
After solving the expression 3-√(x-3)=x algebraically, we get the result as 3.
Isolate the square root from the left hand side √x-3 = 3-x
Eliminate the radical on the left hand side by squaring on both sides-
Both sides must be raised to the second power.
(√x-3)² = (3-x)²
After squaring we get
x-3 = x²-6x+9
Solving the quadratic equation-
We get rearranged equation as -
x² - 7x + 12 = 0
(x-4)(x-3)=0
x=4,3
Check if the first solution is correct by putting it in original equation-
putting x=3 in 3-√(x-3)=x we get 3-0=3
Hence 3 is correct.
Check if the second solution is correct by putting it in original equation-
putting x=4 in 3-√(x-3)=x we get 3-1=4 which is not true
hence 4 is rejected.
Therefore, after solving the expression 3-√(x-3)=x algebraically, we get the result as 3.
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The walker family went on a 3-day road trip. on day 2 they traveled three times as far as they did on day 1 . on day three they traveled 40 miles less than they did on day 2. if the total distance they traveled is 240 miles, how far did they travel each day?
On day 1 they travel 40 miles , on day 2 they travel 120 miles, on day 3 they travelled 80 miles.
what is linear equation ?
A linear equation is a kind of equation that has the highest power of the variable is always 1 is also called as a one-degree equation.
By the linear equation, lets assume family travelled x miles on day 1 then, According to the question, family travelled on day 2 is = 3x miles family travelled in day 3 is = 3x - 40 miles now the travel 240 miles in total then by addition x + 3x + 3x -40 = 240
7x -40 = 240,
7x = 280
x = 40 miles
day 1 =40 miles
day 2 = 120 miles
day 3 = 80 miles
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Someone please help me! Ik its Sunday but i got sick so i couldnt do it over the weekend
Step-by-step explanation:
6 = 5/2x + k
6 = ( 5/2 . 2/1) + k
6 = 10/2 +k
6-5 = k
k = 1
Solve. Check for extraneous solutions. ∛x=8
x = 512 is not an extraneous solution of the equation.
[tex] \sqrt[3]{x} [/tex] = 8
Cubing both the side of the equation, we get
[tex] { \sqrt[3]{x} }^{3} [/tex]
= 8³
x = 512
Check for extraneous solution by putting the value x = 512 in the original equation
[tex] \sqrt[3]{x} [/tex] = 8
[tex] \sqrt[3]{512} [/tex] = 8
8 = 8
⇒ LHS = RHS
∴ x = 512 is not an extraneous solution of the equation.
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is (-1 ,-5) a solution to the inequality 4x+y<-3
The expression (-1 ,-5) is not a solution to the inequality 4x + y < -3
How to determine if (-1 ,-5) is a solution to the inequality 4x + y < -3?The inequality is given as
4x + y < -3
The solution is given as
(-1, 5)
Substitiute (-1, 5) for (x, y) in the inequality expression 4x + y < -3
So, we have
4(-1) + 5 < -3
Open the bracket
-4 + 5 < -3
Evaluate the sum
1 < -3
The above inequality is false
Hence, (-1 ,-5) is not a solution to the inequality 4x + y < -3
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Please help!! Describe the domain and range using interval notation.
Answer:
D= (-3,1]
R= [0,-4]
Step-by-step explanation:
[,] <-- used for when the point is included in the answer (closed circle or greater than/less than or equal to sign)
(,) <-- used for when the answer does not include point (open circle or greater than/less than sign not equal to)
Plug in the points where shown on each line.
Hope that helps a bit!
Geometry Write a function that gives the length of the hypotenuse of an isosceles right triangle with side length (s). Evaluate the inverse of the function to find the side length of an isosceles right triangle with a hypotenuse of (6 in).
A function that gives the length of the hypotenuse of an isosceles right triangle with side length s is given by h(s)=s√2 and the length of the side of the triangle is approximately 4.24 inches.
The largest side of a right-angled triangle is referred to as the hypotenuse. Additionally, the hypotenuse is situated across from the right angle.
We know from the Pythagorean Theorem that the square of the hypotenuse is equal to the sum of the squares of the triangle's right-angled legs.
The right triangle's given legs are s. Let's think about the hypotenuse's function, h(s).
Therefore we can define the function h(s) as
h(s)=s√2
The inverse of the function can be written as
y=s√2
or, s=y²/2
so the inverse function is:
h⁻¹(s)=s²/2
Now for hypotenuse = 6 inches.
Each side can be calculated using the inverse function h⁻¹(s)=s²/2.
s=6÷√2
or, s=4.242...
Hence the length of the side of the triangle is approximately 4.24 inches.
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A multiple-choice examination has 15 questions, each with five possible answers, only one of which is correct. suppose that one of the students who takes the examination answers each of the questions with an independent random guess. what is the probability that he answers at least ten questions correctly? 0.03 0.02 0.01 0.00
The probability that the student will answer at least 10 questions correctly from a multiple-choice examination that has 15 questions, each with five possible answers and only one of which is correct is 0.00
Let P (C) = probability of a student picking a correct option is
P (C) = (Required outcome)/(Total outcome)
Required outcome = numbers of correct option
Total outcome = total numbers of option
P (C) = 1/5
Recall that
P (C) + P (C1) = 1
Where P (C1) is the probability of picking wrong option
P(C)+P(C^1 )=1
1/5+P(C^1 )=1
P(C^1 )=1-1/5
P(C^1 )=4/5
The probability of answering at least 10 questions correctly can be solved by using Binomial probability which states that
P(x)=(nCx) (p)^x (q)^(n-x)
P(x) is the probability of an event
n is the number of trial (15)
x number of specific outcome
p is the probability that the event will happen (1/5)
q is the probability that the event will not happen (4/5)
Probability of answering at least 10 questions correctly will be
P(10) + P(11) + P(12) + P(13) +P(14) + P(15)
P(x)=(nCx) (p)^x (q)^(n-x)
P(10)=(15C10) (1/5)^10 (4/5)^(15-10)
P(10)=(15C10) (1/5)^10 (4/5)^5
15C10=15!/((15-10)!(10!))
15C10=15!/((5)!(10!))
15C10=1307674368000/((120)(3628800))
15C10=1307674368000/43545600
15C10=3003
P(10)=(3003) (0.2)^10 (0.8)^5
P(10)=(3003)(1.024×〖10〗^(-7))(0.32768)
P(10)=0.0001
P(11)=(15C11) (1/5)^11 (4/5)^(15-11)
P(11)=(15C10) (1/5)^11 (4/5)^4
15C11=15!/((15-11)!(11!))
15C11=15!/((4)!(11!))
15C11=1307674368000/((24)(39916800))
15C11=1307674368000/958003200
15C11=1365
P(11)=(1365) (0.2)^11 (0.8)^4
P(11)=(1365)(2.048×〖10〗^(-8))(0.4096)
P(11)=0.000011
P(12)=(15C12) (1/5)^12 (4/5)^(15-12)
P(12)=(15C12) (1/5)^12 (4/5)^3
15C12=15!/((15-12)!(12!))
15C12=15!/((3)!(12!))
15C12=1307674368000/((6)(479001600))
15C12=1307674368000/2874009600
15C12=455
P(12)=(455) (0.2)^12 (0.8)^3
P(12)=(455)(4.1×〖10〗^(-9))(0.512)
P(12)=0.0000009542
P(13)=(15C13) (1/5)^13 (4/5)^(15-13)
P(13)=(15C13) (1/5)^13 (4/5)^2
15C13=15!/((15-13)!(13!))
15C13=15!/((2)!(13!))
15C13=1307674368000/((2)(6227020800))
15C13=1307674368000/12454041600
15C13=105
P(13)=(105) (0.2)^13 (0.8)^2
P(13)=(105)(8.19×〖10〗^(-10))(0.64)
P(13)=0.00000005505
P(14)=(15C14) (1/5)^14 (4/5)^(15-14)
P(14)=(15C14) (1/5)^14 (4/5)^1
15C14=15!/((15-14)!(14!))
15C14=15!/((1)!(14!))
15C14=1307674368000/((1)(87178291200))
15C14=1307674368000/87178291200
15C14=15
P(14)=(15) (0.2)^14 (0.8)^1
P(14)=(15)(1.638×〖10〗^(-10))(0.8)
P(14)=0.00000000197
P(15)=(15C15) (1/5)^15 (4/5)^(15-15)
P(15)=(15C15) (1/5)^15 (4/5)^0
15C15=15!/((15-15)!(15!))
15C15=15!/((0)!(15!))
15C15=1307674368000/((1)(1307674368000))
15C15=1307674368000/1307674368000
15C15=1
P(15)=(1) (0.2)^15 (0.8)^0
P(15)=(1)(3.277×〖10〗^(-13))(1)
P(15)=3.277×〖10〗^(-13)
Probability of answering at least 10 questions correctly will be
P(10) + P(11) + P(12) + P(13) +P(14) + P(15)
P (at least 10)=0.0001+0.000011+ 0.0000009542+0.00000005505+0.00000000197+ 3.277×〖10〗^(-13)
P (at least 10)=0.00011250667
Approximately
P (at least 10)=0.0001
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Solve. Check for extraneous solutions. √2 x+6 - √x-1 =2
x = 5 is not an extraneous solution of the equation.
✓(2x + 6) - ✓(x - 1) = 2
✓(2x + 6) = 2 + ✓(x - 1)
Squaring both the sides of equation, we get
(✓(2x + 6))² = (2 + ✓(x - 1))²
2x + 6 = (2)² + (✓(x - 1))² + 2(2)(✓(x - 1))
2x + 6 = 4 + x - 1 + 4(✓(x - 1))
x + 3 = 4✓(x - 1)
Squaring again on both the side of the equation, we get
(x + 3)² = (4✓(x - 1))²
x² + 3² + 2×3×x = 16(x - 1)
x² + 9 + 6x = 16x - 16
x² - 10x + 25 = 0
By applying middle term splitting on equation (1), we get
x² - 5x - 5x + 25 = 0
x(x - 5) -5(x - 5) = 0
(x - 5) (x - 5) = 0
x = 5 and 5.
Check for extraneous solutions by putting value of x in original equation -
✓(2×5 + 6) - ✓(5 - 1) = 2
✓16 - ✓4 = 2
4 - 2 = 2
2 = 2
LHS = RHS
x = 5 is not an extraneous solution of the equation.
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Find the real and imaginary solutions of each equation.
2 x³-16=0
The 3rd degree polynomial equation 2 x³ -16 = 0 has 1 real solution x₁=2 and two imaginary solutions x₂= -1 + √3 i and x₃= -1 - √3 i
The given equation is:
2 x³ -16 = 0
This is a 3rd degree polynomial equation.
Divide both sides by 2, we get:
x³ - 8 = 0
Add both sides with 8:
x³ = 8
Root characteristics: If a 3rd degree polynomial equation has the form
x³ = b
Then, it has 1 real solution and 2 imaginary complex conjugate solutions.
Furthermore,
x₁ = ∛b
x₂,₃ = ½.∛b (-1± √3 i)
Apply this to the given problem, we have:
x₁ = ∛8 = 2
x₂ = ½. 2 (-1 + √3 i) = -1 + √3 i
x₃ = ½. 2 (-1 - √3 i) = -1 - √3 i
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Louise is reading a 300-page book. She reads 15 pages every day. Which graph correctly displays y, the number of pages that Louise has left to read after x days?
A graph titled How Much Louise Has Left to Read has days on the x-axis and pages on the y-axis. A line goes through (0, 300) and (2, 330).
A graph titled How Much Louise Has Left to Read has days on the x-axis and pages on the y-axis. A line goes through (0, 0) and (2, 30).
A graph titled How Much Louise Has Left to Read has days on the x-axis and pages on the y-axis. A line goes through (0, 300) and (3, 240).
A graph titled How Much Louise Has Left to Read has days on the x-axis and pages on the y-axis. A line goes through (0, 300) and (2, 270).
It should be noted that the graph which will correctly show the number of pages which Louise will have left to read after the number of days is D. A graph titled How much Louise has left to read has days on the x-axis and pages on the y-axis. A line goes through (0, 300) and (2, 270).
What is a graph?It should be noted that he a graph is a diagram that shows the relationships between two or more things.
In this case, it can be seen that Louise is reading a 300-page book and she reads 15 pages every day.
Therefore, the graph that correctly displays the number of pages which Louise has left to read after the number of days is a graph titled How Much Louise Has Left to Read has days on the x-axis and pages on the y-axis. A line goes through (0, 300) and (2, 270).
In conclusion, the correct option is D.
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+ Over the first 20 games of the season, the distribution of a basketball team's scores is bell shaped with a mean of 94 points per game and a high of 109. Over the next 10 games, the team scored 94, 110, 102, 93, 98, 99, 121, 96, 94, and 108 points. Which statement best describes the change in the team's average number of points per game? X The new mean is greater than the previous mean. The new mean is less than the previous mean. The new median is the same as the previous median. The new median is less than the previous median.
The new mean 101.5 is greater than the previous mean 94.
By adding up all the numbers in a data collection and dividing by the total number of values in the set, the mean (average) of the data set can be determined. The median is the middle when a data set is sorted from least to greatest.
The distribution of a basketball team's score with a mean of 94 points per game and a high of 109 for the first 20 games.
Mean = 94,
Points per game = 94, 110, 102, 93, 98, 99, 121, 96, 94, and 108 points.
Therefore,
The new mean = ( sum of observations) / Number of observations
New mean = ( 94 + 110 + 102 + 93 + 98 + 99 + 121 + 96 + 94 + 108) / 10
New mean = 1015 / 10
New mean = 101.5
101.5 > 94
Now, the new mean is greater than the previous mean.
Hence, the correct option is (A).
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For two events X and Y, P(X) = , P(Y) = , and P(X|Y) = . Find the probabilities. 1. P(Y · X) = 2. P(Y/X) =
1. The probability given as P(Y∩X) is; 2/25
2. The probability given as P(Y) * P(X) is; 4/15
What is the probability?
We are given the following probabilities;
P(X) = 2/3 , P(Y) = 2/5 , and P(X|Y) = 1/5
1. We want to find P(Y ∩ X).
This means probability of the set intersection of Y and X
Since P(X) = 2/3 , P(Y) =2/5 , and P(X|Y) =1/5, it means that we have a conditional probability.
Thus; P(Y∩X) = P(Y) * P(X|Y)
P(Y∩X) = 2/5 × 1/5
P(Y∩X) = 2/25
2. We want to find P(Y) * P(X)
Plugging in the relevant values gives;
P(Y) * P(X) = 2/3 × 2/5
P(Y) * P(X) = 4/15
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Complete question is;
For two events X and Y, P(X) =2/3 , P(Y) =2/5 , and P(X|Y) =1/5 . Find the probabilities.
1. P(Y∩X) = ____
2. P(Y)· P(X) =____
graph g(x)=-2|x+5|-4
khan academy
Answer: [tex]f\left(x\right)\le \:-4[/tex]
Step-by-step explanation:
[tex]\begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\le \:-4\:\\ \:\mathrm{Interval\:Notation:}&\:(-\infty \:,\:-4]\end{bmatrix}[/tex]
What is the relationship between 23 and 26?
Answer:
23 and 26? which numbers would you like to know?
Step-by-step explanation:
For each pair of functions, find f(g(x)) and g(f(x)) .
f(x)=-x-7, g(x)=4 x
A composite function exists as a function that depends on another function. The values for f(g(x)) = 4x-7 and g(f(x)) = 4x -28
What is meant by composition function?In mathematics, function composition exists as an operation ∘ that takes two functions f and g, and has a function h = g ∘ f such that h(x) = g. In this operation, the function g exists used to the result of applying the function f to x.
Function composition is a mathematical procedure where two functions, f, and g, are taken and a function, h = g ∘ f, is produced such that h(x) = g(f(x)). The function g exists used in this operation on the outcome of applying the function f to x.
Let the two functions be f(x) = -x-7 and g(x) = 4 x
f(g(x)) = f(4x)
f(4x) = 4x-7
g(f(x)) = g(x-7)
simplifying the above equation, we get
g(x-7) = 4 (x - 7) = 4x -28
g(x-7) = 4x - 28
Therefore, the value of f(g(x)) = 4x-7 and g(f(x)) = 4x -28
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Example 2:
If f(x) = 2x+5, find each value. Show all work.
a) f(-2)
b) f(1)+5
c) f(x+3)
Answer: a. 1
b. 12
c. 2x+11
Step-by-step explanation:
f(x) = 2x+5
a. f(-2)=
2(-2)+5=
-4+5=1
b. f(1)+5=
2(1)+5+5=
2+5+5=12
c. f(x+3)=
2(x+3)+5=
2x+6+5=2x+11
Yvette looks at the pictures below and says the ratio of triangles to hearts is 3:5. Is Yvette correct or not?
Group of answer choices
O No, Yvette is incorrect because the ratio is actually 5:8.
O No, Yvette is incorrect because a ratio can not be determined from looking at shapes.
O No, Yvette is incorrect because the ratio is actually 5:3.
O Yes, Yvette is correct.
Answer:
Step-by-step explanation:
If a right triangle has a leg that is 6 feet and the hypotenuse is 14 feet, find the length of the 3rd side. Round to the nearest hundreth.
O 12.65 feet
O 12.7 feet
O 12.64 feet
O 15.23 feet
The length of the third side of the right triangle is 12.65 feet.
What is Pythagoras theorem?It states in a right triangle the square of the length of the hypotenuse is equal to the sum of squares of the lengths of the other two sides of the right-angled triangle.
We have,
Right triangle:
Side = A = 6 feet
Hypotenuse = h = 14 feet
Let the 3rd side be = M
Applying Pythagoras theorem:
h² = A² + M²
14² = 6² + M²
196 = 36 + M²
M² = 196 - 36
M² = 160
M = √160
M = 2√10
M = 2 x 3.1622
M = 12.649
Rounding to the nearest hundredth we get,
M = 12.65
Thus the length of the third side of the right triangle is 12.65 feet.
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Answer the following questions about 3 numbers chosen from the numbers 1 through 16 (including 1 and 16): 1. suppose the numbers are chosen with replacement. what is the probability that the numbers chosen include both even and odd ones? 1/11 2. suppose now the numbers are chosen without replacement. what is the probability that the numbers chosen include both even and odd ones?
The probability that 3 numbers chosen with replacement contain both even and odd is 0.75 while the probability that 3 numbers chosen without replacement contain both even and odd is 0.8.
The numbers include 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
Case 1: with replacement
Let P (E) = probability of chosing even number is
P (E) = (Required outcome)/(Total outcome)
Required outcome = numbers of even number
Total outcome = total numbers
P (E) = 8/16
P (E) = 1/2
Let P (o) = probability of chosen odd number is
P (o) = (Required outcome)/(Total outcome)
Required outcome = numbers of odd number
Total outcome = total numbers
P (o) = 8/16
P (o) = 1/2
Since 3 numbers are chosen, there are 6 possible combination which are OEE, EOE, OEO, OOE EEO, and EOO
P (chosen 3 numbers) = P (OEE) + P (EOE) + P (OEO) + P (OOE) + P (EEO) + P (EOO)
P (OEE) =P(O)×P(E)×P(E)
P (OEE) =1/2×1/2×1/2
P (OEE) =1/8
P (EOE) =P(E)×P(O)×P(E)
P (EOE) =1/2×1/2×1/2
P (EOE) =1/8
P (OEO) =P(O)×P(E)×P(O)
P (OEO) =1/2×1/2×1/2
P (OEO) =1/8
P (OOE) =P(O)×P(O)×P(E)
P (OOE) =1/2×1/2×1/2
P (OOE) =1/8
P (EEO) =P(E)×P(E)×P(O)
P (EEO) =1/2×1/2×1/2
P (EEO) =1/8
P (EOO) =P(E)×P(O)×P(O)
P (EOO) =1/2×1/2×1/2
P (EOO) =1/8
P (chosen 3 numbers)=1/8+1/8+ 1/8+1/8+1/8+1/8
P (chosen 3 numbers)=6(1/8)
P (chosen 3 numbers)=3/4
P (chosen 3 numbers)=0.75
Case 2: without replacement, when the first number is chosen there is a reduction in the amount of the remaining numbers.
Let P (E) = probability of chosen even number is
P (E) = (Required outcome)/(Total outcome)
Required outcome = numbers of even number
Total outcome = total numbers
P (E) = 8/16
P (E) = 1/2
Let P (o) = probability of chosing odd number is
P (o) = (Required outcome)/(Total outcome)
Required outcome = numbers of odd number
Total outcome = total numbers
P (o) = 8/16
P (o) = 1/2
Since 3 numbers are chosen, there are 6 possible combination which are OEE, EOE, OEO, OOE EEO, and EOO
P (chosen 3 numbers) = P (OEE) + P (EOE) + P (OEO) + P (OOE) + P (EEO) + P (EOO)
P (OEE) =P(O)×P(E)×P(E)
P (OEE) =8/16×8/15×7/14
P (OEE) =1/2×8/15×1/2
P (OEE) =8/60
P (OEE) =2/15
P (EOE) =P(E)×P(O)×P(E)
P (EOE) =8/16×8/15×7/14
P (EOE) =1/2×8/15×1/2
P (EOE) =8/60
P (EOE) =2/15
P (OEO) =P(O)×P(E)×P(O)
P (OEO) =8/16×8/15×7/14
P (OEO) =1/2×8/15×1/2
P (OEO) =8/60
P (OEO) =2/15
P (OOE) =P(O)×P(O)×P(E)
P (OOE) =8/16×7/15×8/14
P (OOE) =1/2×7/15×4/7
P (OOE) =28/210
P (OOE) =2/15
P (EEO) =P(E)×P(E)×P(O)
P (EEO) =8/16×7/15×8/14
P (EEO) =1/2×7/15×4/7
P (EEO) =28/210
P (EEO) =2/15
P (EOO) =P(E)×P(O)×P(O)
P (EOO) =8/16×8/15×7/14
P (EOO) =1/2×8/15×1/2
P (EOO) =8/60
P (EOO) =2/15
P (chosen 3 numbers)=2/15+2/15+ 2/15+2/15+2/15+ 2/15
P (chosen 3 numbers)=6(2/15)
P (chosen 3 numbers)=4/5
P (chosen 3 numbers)=0.8
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The cities M, N, and O, in respective order, lie approximately in a straight line. The distance from city M to city N is 45 miles. The distance from city M to city O is 50 miles. Find the distance from city N to city O.
Step-by-step explanation:
so, MN + NO = MO
MO = 50 miles
MN = 45 miles
therefore,
45 + NO = 50
NO = 50 - 45 = 5 miles
Write the given rate as a fraction in simplest form 452 calories un 8 servings
The calorie serving in simplest form is 56.5
The rate in mentioned question will be number of calories present per serving.
So writing the given information in the form of rate -
Rate of calorie per serving = 452/8
Now, to convert the rate of calories in simplest form, we will perform division of both numerator and denominator of fraction by a common number. We can directly divide the numerator and denominator of fraction with 8. Else, we can perform division by simpler numbers too.
Indirect method -
Lets begin the division by 4
Rate of calorie per serving = 113/2
Further dividing by 2
Rate of calorie per serving = 56.5
Direct method will also give the same result, which is rate of calorie per serving = 56.5.
Hence, in simplest form (decimal) the rate of calorie per serving is 56.5.
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Find the values of x and y in parallelogram PQRS. PTy, TRx1, QTy, TSx = 7x+ 11
The values of x and y of the parallelogram PQRS are x = 2 and y = 11
What is the side length of the parallelogram?We're given the dimensions of parallelogram PQRS as;
PT = y
TR = 5x + 1
QT = 2y
TS = 6x + 10
T is the intersection of the two diagonals PR and QS and so the diagonals bisect each other.
The diagonal PR is cut into PT and TR, both of which are congruent or equal. Thus, PT = TR.
Similarly, the other diagonal QS is split in half as well. The two equal pieces are QT and TS. So QT = TS.
PT = TR
y = 5x + 1
and
QT = TS
2y = 6x + 10
Plugging the values gives;
2y = 6x + 10
2(y) = 6x + 10
2(5x + 1) = 6x + 10
2*5x + 2*1 = 6x + 10
10x + 2 = 6x + 10
10x + 2 - 6x = 6x + 10 - 6x
4x + 2 = 10
4x + 2 - 2 = 10 - 2
4x = 8
4x/4 = 8/4
x = 2
If x = 2, then y is...
y = 5x+1
y = 5*x+1
y = 5*2+1
y = 10+1
y = 11
Thus, the values of x and y of the parallelogram PQRS are x = 2 and y = 11
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12x + 2=5x - 26 whast is ans
Answer:
X= -4
Step-by-step explanation:
12x+2=5x−26
12+2−2=5−26−2
Answer:
x=−4
Step-by-step explanation:
Subtract from both sides
Simplify then subtract 5x from both sides
Example: