If Probability of ({a, b}) = Pr({a, c}) = Pr({b, c}) and Pr({a, b, c}) = 1 .
Pr({a}) = 1/3
What is probability?The probability of an event is described as a number that indicates how likely the event is to occur which is expressed as a number in the range from 0 and 1, or, using percentage notation, in the range from 0% to 100%.
a, b, and c are different and we have that
Pr({a, b}) = Pr({a, c}) = Pr({b, c}) = 1/3,
Pr({a, b, c}) = 1.
We now Substitute these values and get the following:
Pr({a}) = 1 - 2Pr({a, b}) - 2Pr({a, c}) + 2Pr({a, b, c})
Pr({a} = 1 - 2/3 - 2/3 + 2 = 1/3
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Consider the two triangles. Triangles W U V and X Z Y are shown. Angles V U W and Y X Z are congruent. Angles U W V and X Z Y are congruent. Angles U V W and Z Y X are congruent. The length of side V W is 60 and the length of side Z Y is 48. The length of side Y X is 40 and the length of V U is 50. The length of side U W is 40 and the length of X Z is 32.
Two triangles are similar but not congruent if they have three congruent angles but the side lengths are not equal.
What is the congruency of triangles?
Congruent triangles are those of the same size and shape. This signifies that the respective sides are equal, as are the corresponding angles. We can determine whether two triangles are congruent without evaluating all of their sides and angles.To show how can the triangles be proven similar by the SSS similarity theorem:
The two triangles can be shown to be similar given that the ratios of the corresponding sides ΔWUV and ΔYXZ are constant
Reason:
Known parameters are:
ΔWUV and ΔXZY are shown:
∠VUW ≅ ∠YXZ
∠UWV ≅ ∠XZY
∠UVW ≅ ∠ZYX
Length of side VW = 60
Length of side VU = 50
Length of side UW = 40
Length of side ZY = 48
Length of side YX = 40
Length of side XZ = 32
The ratio of the sides are:
[tex]\frac{VW}{ZY} =\frac{60}{48} =\frac{5}{4} \\\frac{VU}{YX} =\frac{50}{40} =\frac{5}{4} \\\frac{UW}{XZ} =\frac{40}{32} =\frac{5}{4}[/tex]
Therefore, given that the angles of ΔWUV and ΔXZY are all congruent, and the sides of triangle ΔWUV and ΔXZY have a constant proportion, we have that the two triangles are congruent by the Side-Side-Side SSS congruency theorem, and we have:
ΔWUV ~ ΔYXZ given that ΔYXZ is a scaled drawing of ΔWUV.
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The complete question is given here:
Triangles W U V and X Z Y are shown. Angles V U W and Y X Z are congruent. Angles U W V and X Z Y are congruent. Angles U V W and Z Y X are congruent. The length of side V W is 60 and the length of side Z Y is 48. The length of side Y X is 40 and the length of V U is 50. The length of side U W is 40 and the length of X Z is 32.
How can the triangles be proven similar by the SSS similarity theorem?
Solve the following quadratic by
completing the square.
f(x) = x² + 2x - 12
+√[]
x = [?] +
Answer:
{x = -1 + √13 , x = -1 - √13}
Step-by-step explanation:
Completing the square:
f(x) = x² + 2x - 12
= x² + 2x + 1 - 1 - 12
= (x² + 2x + 1) - 1 - 12
= (x + 1)² - 13
Solving:
f(x) = 0
⇔ (x + 1)² - 13 = 0
⇔ (x + 1)² = 13
⇔ x + 1 = √13 or x + 1 = -√13
⇔ x = -1 + √13 or x = -1 - √13
given that
5x : 8 = 7 : 2
calculate the value of x
give your answer in its simplest form
Answer: x=5.6 or 5 3/5
Step-by-step explanation:
Cross multiplication is when you have two fractions (ratios) that are equivalent and you can multiply the numerator of the first one by the denominator of the second one, and the denominator of the first one by the numerator of the first one. The answers to these two are equivalent.
So, 5x/8 = 7/2
10x=56
x=5.6
x= 5 3/5
Solve this system of equations: y = x2 – 3x 12 y = –2x 14 1.isolate one variable in the system of equations, if needed. y = x2 – 3x 12 y = –2x 14 2.use substitution to create a one-variable equation. –2x 14 = x2 – 3x 12 3.solve to determine the unknown variable in the equation. what are the values of x? {–2, 1} {–2, 4} {–1, 2} {–1, 4}
Answer:
our answer is X=2 or X= -1
Answer: C. {-1,2}
Correct on Edge 2023
If f(x) = –x2 + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph of (f + g)(x)? On a coordinate plane, a straight line with a negative slope crosses the y-axis at (0, 5) and crosses the x-axis at (1, 0). On a coordinate plane, a parabola opens down. It goes through (negative 2, negative 4), has a vertex at (0, 5), and goes through (2, negative 2) On a coordinate plane, a parabola opens up. It goes through (negative 3, 7), has a vertex at (negative 1, 2), and goes through (0, 5). On a coordinate plane, a straight line with a positive slope crosses the x-axis at (negative 1, 0) and crosses the y-axis at (0, 5) - edge21
Answer:
Can i have the graph? THis doesn't make sense
Step-by-step explanation:
The graph of (f+g)(x) is on the coordinate plane, a straight line with a positive slope crosses the x-axis at (negative 1, 0) and crosses the y-axis at (0, 5).
What is the graph of a parabolic equation?The graph of a parabolic equation is a curved U-shape graph from where the domain, the range, x-intercept(s), and the y-intercept(s) can be determined.
Given that:
f(x) = -x² + 3x + 5
g(x) = x² + 2x
To find (f + g)(x), we have:
(f + g)(x) = (-x² + 3x + 5)+(x² + 2x)
(f + g)(x) = -x² + 3x + 5 +x² + 2x
(f + g)(x) = 3x + 2x + 5
(f + g)(x) = 5x + 5
Use the Slope-intercept form: We are to find the graph of y = 5x + 5
y = 5x + 5
Here:
Slope = 5 x-intercept = (-1, 0)y-intercept = (0,5)Therefore, we can conclude that on the coordinate plane, a straight line with a positive slope crosses the x-axis at (negative 1, 0) and crosses the y-axis at (0, 5)
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Find the diameter that represents the 49th percentile
Using the normal distribution, the diameter that represents the 49th percentile is of 1.52 units.
Normal Probability DistributionThe z-score of a measure X of a normally distributed variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The z-score measures how many standard deviations the measure is above or below the mean. Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.Using a calculator, the mean and the standard deviation for the diameters are given as follows:
[tex]\mu = 1.524, \sigma = 0.1226[/tex]
The 49th percentile is X when Z = -0.025, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]-0.025 = \frac{X - 1.524}{0.1226}[/tex]
X - 1.524 = -0.025 x 0.1226
X = 1.52.
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4 2/7 - 2 1/3 =
4,5 - 2 5/8 =
5 2/8 - 15% =
Thanks for answer!
The simplified form of the expressions: 4 2/7 - 2 1/3, 4.5 - 2 5/8 and 5 2/8 - 15% are 41/21, 15/8 and 51/10 respectively.
What are the simplified form of the expression?1) 4 2/7 - 2 1/3
First we convert the mixed fraction 4 2/7 and 2 1/3 into an improper fraction.
4 2/7 = (7×4 + 2 )/7 = 30/7
2 1/3 = (3×2 + 1 )/3 = 7/3
Hence,
30/7 - 7/3
( 30×3 - 7×7 )/21
( 90 - 49 )/21
41/21
2) 4.5 - 2 5/8
First we convert both 4.5 and 2 5/8 into an improper fraction.
4.5 = 4 5/10 = (4×10 + 5)/10 = 45/10 = 9/2
2 5/8 = (2×8 + 5 )/8 = 21/8
Hence,
9/2 - 21/8
(9×8 - 21×2 )/16
(72 - 42 )/16
30/16
15/8
3) 5 2/8 - 15%
First we convert both 5 2/8 and 15% into an improper and proper fraction respectively.
5 2/8 = (5×8 + 2)/8 = 42/8 = 21/4
15% = 15/100 = 3/20
Hence
21/4 - 3/20
(21×20 - 3×4 )/80
(420 - 12 )/80
408/80
51/10
Therefore, the simplified form of the expressions: 4 2/7 - 2 1/3, 4.5 - 2 5/8 and 5 2/8 - 15% are 41/21, 15/8 and 51/10 respectively.
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The sampling distribution used when making inferences about a single population variance is?
We use the chi-square distribution when making inferences about a single population variance.
Short Description of Chi-Square Distribution
The continuous probability distribution known as the chi-square distribution. The number of degrees of freedom (k) a chi-square distribution has determines its shape. This type of sampling distribution has a variance of 2k and a mean equal to its number of degrees of freedom (k). The range is of a chi-square distribution is from 0 to ∞.
Variance plays a key role in the analysis of risk and uncertainty. The sample variance, an unbiased estimator of population variance, is expressed by the following formula of core statistic for a sample size 'n' and Y' as the sample mean:
S² = ∑(Yₓ - Y') / (n-1)
The formula, (n-1)S² / σ² has the central chi-square distribution as χ²ₙ₋₁. Here (n-1) represents the degrees of freedom.
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You are driving from your house to your office. Currently, it is 7:10 a.m., and you are 12 miles from your office. If you travel at an average speed of 30 miles per hour, at what time should you arrive at your office
We would reach our office by 7:34 a.m.
How to find the time that we would take to travel from our house to the office?The average speed is given as 30 miles per hour.
Let us convert this into miles per minute.
30 miles/1 hour = 30 miles/60 minutes
= 0.5 miles per minute
The distance between the house and the office is 12 miles.
Therefore, we can find what it would take to reach the office by dividing the distance by the average speed:
Time taken = distance/average speed
= 12 miles/0.5 miles per minute
= 24 minutes
The time is given to be 7:10 a.m. Therefore we would reach our office by 7:34 a.m.
Therefore, we would reach our office by 7:34 a.m.
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PLEASE HELP GEOMETRY
answer both parts
1) vertical angles theorem
2) transitive property of congruence
what is trigonometric ratios
Answer:
Trigonometric Ratios are defined as the values of all the trigonometric functions based on the value of the ratio of sides in a right-angled triangle
Answer:
In mathematics, the trigonometric functions are real functions which relate an angle of a right-angled triangle to ratios of two side lengths. They are widely used in all sciences that are related to geometry, such as navigation, solid mechanics, celestial mechanics, geodesy, and many others.
Hi
How are you?
Kya kar rahi hoo?
17. If13=xy-5 and y = 6, what is the value of x? (A) 0 (B) 3 (C) 6 (D) 8
Answer:
Option B: 3
Step-by-step explanation:
#1: Substitute in 6 for [tex]y[/tex] and 3 for [tex]x[/tex]: [tex]13=(3)(6)-5[/tex]
#2: Multiply 3 and 6: [tex]13=18-5[/tex]
#3: Evaluate the equation: [tex]13=18-5[/tex] → [tex]13=13[/tex]
#4: Check if the solution is equal: [tex]13=13[/tex] ✓
[tex]x[/tex] is equal to 3 (Option B).
Is x^25+1 polynomial function
Answer:
Step-by-step explanation:
yes I believe it is an quartic binomial
Answer:
yes
Step-by-step explanation:
If because it has two terms, it is a binomial, therefore it also qualifies as a polynomial.
Hope this helps
After being filled, a basketball loses 3.2% of its air every day. Considering that the initial volume of the ball was 840 cubic centimetres when it was inflated, what will be the volume in cubic centimetres after 4 days? (Round your answer to one decimal place).
Answer:
volume = 840 cubic cm
(3.2/100)×840= 26.88 per day
after 4 days = 26.88×4=107.5
answer is 107.5
The volume (in cubic centimeters) after 4 days, given that the initial volume of the ball was 840 cubic centimeters, is 732.5 cubic centimeters
How to determine the volume after 4 days?First, we shall determine the volume lost per day. Details below:
Initial volume = 840 cubic centimeters Percentage loss = 3.2%Volume lost per day = ?Volume lost per day = 3.2% × Initial volume
= 3.2% × 840
= (3.2 / 100) × 840
= 26.88 cubic centimeters
Now, we shall obtain the volume after 4 days. Details below:
Initial volume = 840 cubic centimeters Volume lost per day = 26.88 cubic centimeters Volume lost in 4 days = 4 × 26.88 = 107.52 cubic centimeters Volume after 4 days =?Volume after 4 days = Initial volume - Volume lost in 4 days
= 840 - 107.52
= 732.5 cubic centimeters
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The volume of a sphere is 500/3π cm3.
Work out the surface area of the sphere.
Give your answer in terms of π.
The answer is 100π cm².
Since we are given the volume, equate it to the formula of a sphere to find the radius.
500/3π = 4/3πr³r³ = 500/4r³ = 125r = 5 cmNow, substitute this in the formula to find surface area.
A = 4πr²A = 4π × (5)²A = 100π cm²Anabelle collected data on the favorite superhero of the students in her class. The table shows the relative frequencies of rows for the data collected: Favorite Superhero Superman Spiderman Batman Wonder Woman Row totals Boys 0.21 0.25 0.06 0.11 0.63 Girls 0.25 0.02 0.03 0.07 0.37 Column totals 0.46 0.27 0.09 0.18 1 Based on the data, which superhero is most likely to be the favorite
Considering the proportions given in the table, the superhero is most likely to be the favorite is Superman.
What is a proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.
Looking at the table, the proportions associated with each superhero is given as follows:
Superman: 0.46.Spiderman: 0.27.Batman: 0.09.Wonder woman: 0.18.As it has the highest proportion, the superhero is most likely to be the favorite is Superman.
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A bag contains different colored candies. There are 50
candies in the bag, 28 are red, 10 are blue, 8 are green and
4 are yellow.
What is the probability of choosing one candy and getting a
blue or red?
Fractions should always be in lowest terms.
о
19
25
38
4
38
50
25
19
Answer: 19/25
Step-by-step explanation: 50 candies total. 28 are red, 10 are blue 8 are green, and 4 are yellow. We want to calculate the probability of choosing a candy and either getting blue or red. The total candies that are blue or red are 28+10 = 38. So, 38/50. We can simplify by dividing by 2 to get 19/25. 19 is a prime number so that is as simple as we can get,
LOOK AT PIC!!! PLS HELP
Answer:
C. 21°C
Step-by-step explanation:
Substitute 69.8 for F in the equation, [tex]69.8=\frac{9}{5}C+32[/tex]. This becomes [tex]37.8=\frac{9}{5} C[/tex]. Divide both sides by [tex]\frac{9}{5}[/tex] to get [tex]21=C[/tex].
Answer:
21
Step-by-step explanation:
hfjajxnzjaiidnsnjaoaoaoa
If Avogadro's number of pennies is divided equally among the 246 million men, women, and children in the United States, how many dollars would each receive
USD per person = $[tex]2.31[/tex] × [tex]10^{13}[/tex].
What is the US dollar?The US dollar is the official currency of the United States and a number of other countries. The Coinage Act of 1792 established the United States dollar on equal footing with the Spanish silver dollar, divided it into 100 cents, and authorized the minting of coins denominated in dollars and cents.To find how many dollars would each receive:
Avogadro's number of pennies is divided equally among 261 million people.
Avogadro's number is [tex]6.022[/tex] × [tex]10^{23}[/tex].
To find the number of pennies each person will receive, we divide [tex]6.022[/tex] × [tex]10^{23}[/tex] by 261 million.
Pennies per person = [tex]\frac{6.022 * 10^{23} }{261 million} = \frac{6.022 * 10^{23} }{261 * 10^{6} } = 2.31 * 10^{15}[/tex]
This is equal to the number of cents each person receives.
To convert pennies into dollars, 1 USD = 100 pennies, divide [tex]2.31 * 10^{15}[/tex] by [tex]100[/tex].
USD per person = [tex]\frac{2.31 * 10^{15} }{100} = $2.31 * 10^{13}[/tex]
Therefore, USD per person = $[tex]2.31[/tex] × [tex]10^{13}[/tex].
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The question you are looking for is here:
If Avogadro's number of pennies is divided equally among the 261 million men, women, and children in the United States, how many dollars would each receive?
A set of golf clubs and bag cost $225. The clubs cost $60 more than the bag. How much do the clubs cost?
Answer:
$142.5
Step-by-step explanation:
225-60=165
165/2=82.5
82.5+60=142.5
What is the solution of…
Answer:
x/2>5
x>5*2
x>10.....equation 1
3x≥9
x≥9/3
x≥3.....equation 2
so by combining of the two equation we get
x>10 because it is the intersection of the. . two equations.
The answer will the Third
Help me with this question please
Answer:
x- axis , quadrant 2 , quadrant 3
Step-by-step explanation:
(9.5, 0 ) ← is located on the x- axis
(- 4, 7 ) ← is located in Quadrant II
(- 1, - 8 ) ← is located in Quadrant III
Find unknown angle
kº
68°
kº
Answer:
k = 56
Step-by-step explanation:
2k + 68 = 180
2k = 112
112 ÷ 2 = 56
k = 56
Suppose you vote in an election for a slate of candidates from a particular party.The percentage of votes the party wins in a district determines how many seats in a district the party will gain at the national legislature. These districts are best characterized as
These districts are best characterized as Proportional Representation districts.
What is Proportional Representation?
There are numerous types of proportional representation systems, but they all have two things in common. They start by using districts with multiple members.
Proportional Representation, abbreviated as PR, uses significantly bigger districts that elect multiple members at once, such as five or ten, rather than electing one member of the legislature in each local district. Second, the percentage of votes a party receives in these districts with several members determines which candidates gain the seats.
The Proportional Representation system of America overcomes the wide ranging drawbacks of single-district voting system like not representing the large number of voters, discrimination against third parties, etc.
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Drag an answer to each box to complete this paragraph proof. Given: Triangle ABC Prove: m/A= 66 A B (5x) By the C (x + 10) m/A+m/B +m/C= 180°. Using the the sum of the angles in a triangle is equal to 180°. Therefore, solve for x, first combine like terms to get 6x + 100 = 180. Using the (5x) +90° + (x + 10) = 180°. To 6x = 80. Then, using the division property of equality, x = 13. To find the measure of angle A, use the substitution property to get m/A = 5(13). Finally, simplifying the expression gets mA = 663"
The value of A has been illustrated, computed and proven based in the triangle given.
How to calculate the triangle?It should be noted that that a triangle is a shape that has three sides and the value of the addition of all the angles are equal to 180°.
Based on the information that's given, it should be noted that the value of angle A, angle B, and angle C will be equal to 180°.
In this case, the following can be deduced:
A = 5x
B = 90°
C = x + 10°
Therefore, A + B + C = 180° (sum of angles in a triangle)
5x + 90 + x + 10 = 180°
6x = 180° - 90° - 10°
6x = 80°
x = 80/6
x = 13 1/3
Therefore, the value of A will be:
= 5x
= 5 × 13 1/3
= 66 2/3
Therefore, A is 66 2/3.
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WILL GIVE BRAINLEST!!!
Find the length of the base.
Answer:
32
Step-by-step explanation:
The length of segment AB is the average of XY and WZ.
(22 + x)/2 = 27
22 + x = 54
x = 32
Joanna has six beads that she wants to assemble into a bracelet. Two of the beads have the same color, and the other four all have different colors. How many different ways can Joanna assemble her bracelet
Joanna can assemble her bracelet in 30 ways.
How to find the number of ways in which the bracelet can be assembled?It is given that Joanna has 6 beads and of those 6 beads, 2 are of the same color.
The rest 4 are of different colors.
Six beads can be arranged in a circle in 6!/6 ways.
This means that the six beads can be arranged in 5! ways.
Since this is a bracelet, it can be flipped around. Therefore, it can be arranged in 5!/2 ways.
5!/2 = 5*4*3*2*1/2
= 60
Now, we know that two beads are of the same color. Therefore, we must divide this by two again.
Therefore, we get:
60/2 = 30
The six beads can be arranged in 30 ways to make the bracelet.
Therefore, we have found that Joanna can assemble her bracelet in 30 ways.
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percentage of 67 of 98
The percentages of 67 of 98 is 68.36%
Percentages and fractionsFractions are written as a ratio of two integers. According to the question we are to determine the percentage of 67 that is 98.
Fraction of 67 of 98 = 67/98
Percentage = 67/98 * 100
Percentages = 6700/98
Percentages = 68.37%
Hence the percentages of 67 of 98 is 68.36%
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Two cans each hold 750ml by how many ml is their total volume less than 1.8 liters
If two cans hold 750ml ,then their voLume is 0.3 liters less than 1.8 liters.
Given volume of two cans being 750 ml each.
We are required to calculate the quantity in liters of how much the volume of two cans less than 1.8 liters.
Volume is the quantity of substance a container can hold in its capacity.
So volume of cone means quantity of liquid cone can hold if fully filled.
Volume of first cone=750 ml
Volume of second cone=750 ml
Total volume=750+750
=1500 ml
1 liter= 1000 ml
so 1500 ml will be equal to 1500/1000
=1.5 liter
We are required to do comparison with 1.8 liters.
Difference =1.8-1.5
=0.3 liters.
Hence two cans have 0.3 liters less than 1.8 liters.
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Which of the following is equal to the fraction below ?
(answers are in the picture)