The length of segment PQ is equals to the length of segment P'Q' divided by 1.5, that is:
PQ = P'Q'/1.5
What is a dilation?A dilation can be defined as a transformation that multiplies the distance between every point in an object and a fixed point, called the center of dilation, by a constant factor called the scale factor.
The scale factor for this problem is given as follows:
k = 1.5.
Hence the equation relating the lengths PQ and P'Q' is given as follows:
P'Q' = 1.5PQ
PQ = P'Q'/1.5
(as the length on the dilated figure is the original length multiplied by the scale factor).
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May you please help me. I am having trouble understanding how to do it.
Claire's is twice as tall as Zoe implies that:
\(\text{Claire's height = 2x}\)The sum of their ages is 108 inches.
Thus, we have:
\(\begin{gathered} x+2x=108 \\ 3x=108 \\ x=\frac{108}{3} \\ x=36 \end{gathered}\)Therefore, Zoe's height is 36 inches while Claire's height is 72 inches
Customers arrive at a checkout counter in a department store according to a Poisson distribution at an average of seven per hour. If it takes approximately ten minutes to serve each customer, find the mean use at least four digits after the decimal if rounding...)
and variance of the total service time for customers arriving during a 1-hour period. (Assume that a sufficient number of servers are available so that no customer must wait for service.) (use at least four digits after the decimal if rounding...) What is the probability that the total service time will exceed 2.5 hours? (use at least four digits after the decimal if rounding...)
The answer of this question is found to be 0.0012.
The mean total service time is 10 minutes times lambda (the average number to turn up during the hour)
Lambda is 7, since the average rate is 7 per hour and your time window is 1 hour.
mean service time = 7 × 10 = 70 minutes.
For a poisson process, lambda is both the mean and variance of the arrivals.
So the variance = 10² × lambda = 700, since we want the variance of the service time, rather than the variance of the arrival rate.
This is because:
σ(aX) = a × σ(X).
and σ = sqrt(variance)
σ(service time) = 10 σ(arrival time)
variance(service time) = (10 × σ(arrival time))²
variance(service time) = 100 × variance(arrival time) = 100 × lambda = 100 × 7
mean(servicetime) = 70
variance(servicetime) = 700
2.5 hour = 150 min
Z = \(\frac{(S - 70)}{\sqrt{700} }\) follow N(0,1)
P(S > 150) = P( \(\frac{(S - 70)}{\sqrt{700} }\)> \(\frac{(150 - 70)}{\sqrt{700} }\))
=P(Z > -2.5512)
=0.0012
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6 is 5% of what number?
100
Answer: 120
Step-by-step explanation:
We can put it in an equation like this:
6 = 5%x
Then, we solve:
6 = 1/20 x
x = 20/1 *6
x=120
Therefore, 5% of 120 is 6.
Answer:
120
Step-by-step explanation:
5/100=6/x
Cross multiply
5x=100(6)
5x=600
/5. /5
x=120
Hopes this helps please mark brainliest
1,400,000
Would that be 1.4 x 10^5 or 1.4 x 10^6
Answer:
1.4 x 10^6
Step-by-step explanation:
Find the output, y, when the input, x, is -9.
y =
Answer:
when x=-9, y=1
Step-by-step explanation:
the graph shows when the x is at -9, the y is at 1
Explain how using a balance scale can help you solve the following equation. Then, find the solution 10 + y = 23
Answer:
by changing y's value with the ten pounds until it equals 23 pounds.
While waiting for the school bus, Michiko record the colors of all cars passing through an internection. The table shows the renuita, Fatimate the probability that thenext car through the intersection will be red. Express your answer as a percent. If necessary, round your annwor to the nearent tenth
Given:-
Michiko record the colors of all cars passing through an internection.
\(\begin{gathered} \operatorname{Re}d-11 \\ \text{silver}-24 \\ \text{gray}-16 \\ \text{black}-9 \end{gathered}\)To find:-
Probability that the next car through the intersection will be red.
So to calculate the probabilty. we add all the number of cars and we divide 11 with that number and multiply with 100. To get the required solution.
So the total cars is,
\(11+24+16+9=60\)So now we simplify. we get,
\(\frac{11}{60}\times100=\frac{11}{6}\times10=\frac{110}{6}=18.3\)So the required solution is 18.3%
So the correct option is OPTION 1.
please help me asap :(((
Explanation:
We're subtracting 7 from both sides to go from 4x+7 = 21 to 4x = 14.
In more general terms, the subtraction property says we can go from a = b to a-c = b-c.
a bag has 5 yellow marbles, 3 red marbles, and 2 blue marbles. Quincy randomly picks a marble from the bag and returns it before another is picked. How many times would quincy expect to get a blue marble if he chose marbles 200 times?
Answer:
40
Step-by-step explanation:
2/10 are blue
so we need to find out 2/10's of 200
so in your calculator multiply 200 by 2/10
you get 40
I Am Thinking of a number. 1/12 of it equals 6. 1/3 of it equals_________.
Answer:
24
Step-by-step explanation:
hello
let's note x the number we are looking for
\(\dfrac{x}{12}=6\\<=> x = 6*12=72\)
so 1/3 of it equals
\(\dfrac{72}{3}=24\)
another way to see it is that 12=4*3
so 1/3 of it equals 6*4=24
hope this helps
find x and y please explain really well
Answer:
x=10,y=120
Step-by-step explanation:
3x-30=60 CDA
3x=30
x=10
again,
y+60=180 straight line
y = 120
Which interval contains a local minim um for the
graphed function?
[-4,-2.5]
[-2,-1]
[1, 2]
[2.5, 4]
Answer:
Option (4)
Step-by-step explanation:
From the graph attached,
Local minimum → (3, -4)
Global Maximum → (-0.44, -4.3)
Maximum of the function → (1.7, 0.7)
Since, local maximum lies in the interval 2.5 ≤ x ≤ 4
Interval that contains the local minimum will be→ [2.5, 4]
Therefore, Option (4) will be the correct option.
If the simple interest on $6,000 for 10 years is $5,400, then what is the interest rate?
Answer:
9%
Step-by-step explanation:
p*r*t = Interest
$6000*x*10 years = $5400
interest ÷ time ÷ principal = rate
5400 ÷ 10 ÷ 6000 = 0.09
0.09 = 9%
Solve the following inequality. 2(P + 1) > 7 + P
Answer:
\(p > 5\)
Step-by-step explanation:
\(2(p + 1) > 7 + p \\ expanding \: the \: bracket \\ 2p + 2 > 7 + p \\ collect \: like \: terms \\ 2p - p > 7 - 2 \\ p > 5\)
I hope this helps
Twelve cards are numbered from 1 to 12 and placed in a box. One card is selected at random and not replaced. Another is randomly selected. What is the probability of selecting two even numbers?
In this case, we are to determine the probability of selecting two even numbers. This can be solved as follows:There are six even numbers: {2, 4, 6, 8, 10, 12}.We can use the concept of conditional probability since the first event affects the probability of the second event. This can be expressed as follows:
In this case, P(A) represents the probability of selecting an even number, and P(B|A) represents the probability of selecting an even number given that the first card selected was even. P(A) = 6/12 = 1/2 (there are six even numbers and twelve cards in total)P(B|A) = 5/11 (there are five even numbers left in the box after the first even number is selected, and eleven cards are left in total).
The probability of selecting two even numbers can be found by multiplying these probabilities: P(A) x P(B|A) = (1/2) x (5/11) = 5/22Therefore, the probability of selecting two even numbers is 5/22.Answer: 5/22
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just explain how this is "Reflexive Property" (30 points)!!
The Reflexive Property is a property of equality that states that anything is equal to itself. This property is true for numbers, shapes, angles, and more.
In the context of geometry, the Reflexive Property of Congruence states that any geometric figure is congruent to itself. This includes angles, segments, triangles, and other polygons.
So, when you see "<J ≅ <J", it's saying that angle J is congruent to angle J, which is an application of the Reflexive Property. In other words, any angle is congruent (equal in measure) to itself.
find the nth term 5 20 45 80 125
Answer:\(10n^{2}\)+180
Step-by-step explanation:
Please answer this correctly
Answer:
50%
Step-by-step explanation:
There are 3 numbers fitting the rule, 1, 2, and 6. There is a 3/6 chance rolling one of them or 50%.
Answer:
50%
Step-by-step explanation:
1 value> 5 and 2 values<3, out of total of 6
P (greater than 5 or less than 3) = 3/6= 50%
The height of a triangle is 4 feet less than the length of its base, b. The area of the triangle is 30 square feet.
Find the base and the height of the triangle.
Step-by-step explanation:
h=b-4
A=30ft^2
A=1/2bh
30=1/2b(b-h)
Cross Multiply
60=b(b-4)
60=b^2-4b
b^2-4b-60=0
Factorise the equation
(b^2+6) (-10b-60)
b(b+6)-10(b+6)
(b-10) (b+6)
b-10=0 or b+6=0
b=10 or b=-6
base =10 (since measurement can not be negative)
h=b-4
Sub the value of b
h = 10-4
h=6
So the height is 6ft and base is 10ft
Diego makes green paint by mixing 10 tablespoons of yellow paint and 2 tablespoons of blue paint. Which of these mixtures produce the same shade of green paint as Diego’s mixture?
Select all that apply.
Group of answer choices
Mix tablespoons of yellow paint and blue paint in the ratio 15 to 3.
Mix tablespoons of blue paint and yellow paint in the ratio 1:5.
Mix 11 tablespoons of yellow paint and 3 tablespoons of blue paint.
For every 5 tablespoons of blue paint, mix in 1 tablespoon of yellow paint.
please help me
Answer: 1, 2 and three
Step-by-step explanation:
Twenty-five less than the product of three and ten and five tenths.
Answer:
On the left side is "13", that is the whole number part. There are two digits on the right side, the 7 is in the "tenths" position, and the 6 is the "hundredths" position. So, 13.76 is "13 and 7 tenths and 6 hundredths".
Step-by-step explanation:
Answer:
3 x 10 x .5 - 25
Step-by-step explanation:
Is your expression
Help!!
Question 1 Multiple Choice Worth 4 points)
(02.05)
Solve the quadratic equation x? - 8x + 18 = 0 using the quadratic formula. What is the solution when expressed in the form a + bi, where a and b are real numbers?
Answer:
do u go to il Texas and BTW u look nice
Which statement is true?
A. All squares are similar to each other
B. All rectangles are similar to each other
C. All squares are similar to each other, and all rectangles are similar to each other
D. None is true
PLEASE ANSWER NUMBER 2
As a reward for saving his daughter from pirates, the King has given you the opportunity to win treasures hidden inside two of three trunks. The trunk that does not hold any treasure is empty. To win, you must select the correct trunks. The inscriptions on Trunks 1, 2, and 3 are "This trunk is empty," "There is a treasure in Trunk 1," and "There is a treasure in Trunk 2." For each of the following statements, determine whether the Queen who never lies could state this, and if so, which two trunks contain the treasures.(a) The Queen can state, "All the inscriptions are false."If the Queen can state this, in which of the trunks are the treasures hidden?(b) The Queen can state, "Exactly one of the inscriptions is true."If the Queen can state this, in which of the trunks are the treasures hidden?(c) The Queen can state, "Exactly two of the inscriptions are true."If the Queen can state this, in which of the trunks are the treasures hidden?(d) The Queen can state, "All the three inscriptions are true."If the Queen can state this, in which of the trunks are the treasures hidden?
The following answers are obtained from HW, which it shows answers to.
Answer:
A. The Queen can state, "All the inscriptions are false."If the Queen can state this, in which of the trunks are the treasures hidden?
False, Cannot be determined
(b) The Queen can state, "Exactly one of the inscriptions is true."If the Queen can state this, in which of the trunks are the treasures hidden?
True, Trunk 1 and 3
(c) The Queen can state, "Exactly two of the inscriptions are true."If the Queen can state this, in which of the trunks are the treasures hidden?
True, Cannot be determined
d) The Queen can state, "All the three inscriptions are true."If the Queen can state this, in which of the trunks are the treasures hidden?
False, Cannot be determined
The Apgar score a measure of the physical condition of a newborn baby. It is a whole number value from 0 to
10. Define the random variable X to be the Apgar score of a randomly selected newborn baby. The table gives the
probability distribution of X once again.
Value x
Probability P
0
3 4
5
6
1 2
7 8 9 10
0.001 0.006 0.007 0.008 0.012 0.020 0.038 0.099 0.319 0.437 0.053
Calculate and interpret the expected value of X
The expected value of X is given as follows:
E(X) = 8.13.
(representing the expected Apgar score of a randomly selected newborn baby.)
How to obtain the expected value of a discrete distribution?The expected value of a discrete distribution is given by the sum of each outcome multiplied by it's respective probability.
Hence the expected value of X is calculated as follows:
E(X) = 0 x 0.001 + 1 x 0.006 + 2 x 0.007 + 3 x 0.008 + 4 x 0.012 + 5 x 0.02 + 6 x 0.038 + 7 x 0.099 + 8 x 0.319 + 9 x 0.437 + 10 x 0.053 = 8.13.
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pls help!!
Q:In a random sample, 8 students were asked how long it takes them to get ready for school in the morning. The times are listed below, compute the following:
22 29 21 24 27 28 25 36
Range:
Variance:
Std Deviation:
The required statistical parameters has been computed as follows:
Range = 15.
Standard deviation, SD = 4.4441.
Variance = 19.75.
How to calculate the range?Mathematically, the range of a data set can be calculated by using this formula;
Range = Highest number - Lowest number
Range = 36 - 21
Range = 15.
How to calculate the mean?Mathematically, the mean for these data sets would be calculated by using this formula:
Mean = [F(x)]/n
F(x) = 22 + 29 + 21 + 24 + 27 + 28 + 25 + 36
F(x) = 212.
Mean = 212/8
Mean = 26.5
Next, we would calculate the standard deviation by using this formula:
SD = √(1/n × ∑(xi - u₁)²)
SD = √(1/5 × ∑(22 - 26.5)² + 1/5 × ∑(29 - 26.5)² + 1/5 × ∑(21 - 26.5)² + 1/5 × ∑(24 - 26.5)² + 1/5 × ∑(27 - 26.5)² + 1/5 × ∑(28 - 26.5)² + 1/5 × ∑(25 - 26.5)² + + 1/5 × ∑(36 - 26.5)²)
Standard deviation, SD = 4.4441.
In Statistics, the standard deviation of a data sample is the square root of the variance and this is given by this mathematical expression:
Variance = δ²
Variance = 4.4441²
Variance = 19.75.
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the length of a cell is 2/3 mm. If the area of the cell is 1/12 square mm, whtat is the width of the cell
Answer:
0.125 mm
Step-by-step explanation:
A/L=W
W=0.125
solve the PDE using separation of variables method Uxx = 1/2 Ut 0< X <3 with U(0,t) = U(3, t)=0, U(0, t) = 5sin(4πx)
The general solution of the partial differential equation is:
U(x, t) = Σ [Aₙ*sin((nπ/3)x)]*e^(-(nπ/3)²t)
How to solve Partial Differential Equations?The partial differential equation (PDE) is given as:
Uxx = (1/2)Ut with the boundary and initial conditions as 0< X <3 with U(0,t) = U(3, t)=0, U(0, t) = 5sin(4πx)
Assume that the solution can be written as a product of two functions:
U(x, t) = X(x)T(t)
Substituting this into the PDE, we have:
X''(x)T(t) = (1/2)X(x)T'(t)
Dividing both sides by X(x)T(t), we get:
(X''(x))/X(x) = (1/2)(T'(t))/T(t)
Since the left side only depends on x and the right side only depends on t, both sides must be equal to a constant, denoted as -λ²:
(X''(x))/X(x) = -λ²
(1/2)(T'(t))/T(t) = -λ²
Simplifying the second equation, we have:
T'(t)/T(t) = -2λ²
Solving the second equation, we find:
T(t) = Ce^(-2λ²t)
Applying the boundary condition U(0, t) = 0, we have:
U(0, t) = X(0)T(t) = 0
Since T(t) ≠ 0, we must have X(0) = 0.
Applying the boundary condition U(3, t) = 0, we have:
U(3, t) = X(3)T(t) = 0
Again, since T(t) ≠ 0, we must have X(3) = 0.
Therefore, we can conclude that X(x) must satisfy the following boundary value problem:
X''(x)/X(x) = -λ²
X(0) = 0
X(3) = 0
The general solution to this ordinary differential equation is given by:
X(x) = Asin(λx) + Bcos(λx)
Applying the initial condition U(x, 0) = 5*sin(4πx), we have:
U(x, 0) = X(x)T(0) = X(x)C
Comparing this with the given initial condition, we can conclude that T(0) = C = 5.
Therefore, the complete solution for U(x, t) is given by:
U(x, t) = Σ [Aₙsin(λₙx) + Bₙcos(λₙx)]*e^(-2(λₙ)²t)
where:
Σ represents the summation over all values of n
λₙ are the eigenvalues obtained from solving the boundary value problem for X(x).
To find the eigenvalues λₙ, we substitute the boundary conditions into the general solution for X(x):
X(0) = 0: Aₙsin(0) + Bₙcos(0) = 0
X(3) = 0: Aₙsin(3λₙ) + Bₙcos(3λₙ) = 0
From the first equation, we have Bₙ = 0.
From the second equation, we have Aₙ*sin(3λₙ) = 0. Since Aₙ ≠ 0, we must have sin(3λₙ) = 0.
This implies that 3λₙ = nπ, where n is an integer.
Therefore, λₙ = (nπ)/3.
Substituting the eigenvalues into the general solution, we have:
U(x, t) = Σ [Aₙ*sin((nπ/3)x)]*e^(-(nπ/3)²t)
where Aₙ are the coefficients that can be determined from the initial condition.
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point k is located on the y-axis 8 units away from the origin. what are the coordinates of point k
Given:
Point k is located on the y-axis 8 units away from the origin.
To find:
The coordinates of point k.
Solution:
Since point k is located on the y-axis, therefore it means the x-coordinate is 0.
Point k is 8 units away from the origin. So, it can be either or positive or negative side of y-axis.
If k is on the negative side of y-axis then y-coordinate of point k is -8.
If k is on the positive side of y-axis then y-coordinate of point k is 8.
Therefore, the possible coordinates of point k are either (0,-8) or (0,8).