Transformation involves changing the size and position of a rectangle.
The transformation of rectangle ABCD to other rectangle ABCD is dilation.
From the question, we understand that the size of both figures are not equal, but they are proportional.
Since the sizes are proportional but not equal, then it means the transformation is a dilation.
Hence, the correct option is (a) dilation
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In △JKL , if m∠ J < 90° , then ∠K and ∠L are _____
Both angle K and angle L must be acute angles, measuring less than 90 degrees, in order to satisfy the conditions of the given triangle.
In triangle JKL, if angle J is less than 90 degrees, then angle K and angle L are both acute angles.
An acute angle is defined as an angle that measures less than 90 degrees. Since angle J is given to be less than 90 degrees, it is an acute angle.
In a triangle, the sum of the interior angles is always 180 degrees. Therefore, if angle J is less than 90 degrees, the sum of angles K and L must be greater than 90 degrees in order to satisfy the condition that the angles of a triangle add up to 180 degrees.
Hence, both angle K and angle L must be acute angles, measuring less than 90 degrees, in order to satisfy the conditions of the given triangle.
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factorise 35 + 5f
No need for explanation if u don't want to type it
Answer: 5(f+7)
Step-by-step explanation: I know you didn't ask for an explanation but here:
First what you want to do is find what both terms have in common, the LCM, (least common multiple), is the only thing common between them, which is 5, so divide 35 by 5, which is 7, and since you divided by 5, you put it outside, and put f and 7 together.
A message is coded into the binary symbols 0 and 1 and the message is sent over a communication channel.
The probability a 0 is sent is 0.4 and the probability a 1 is sent is 0.6. The channel, however, has a random error that
changes a 1 to a 0 with probability 0.1 and changes a 0 to a 1 with probability 0.2. Show your work below.
a. What is the probability a 1 is received?
b. If a 1 is received, what is the probability a 0 was sent?
Answer:
A: the probability that a 1 is received is 0.56.
B: the probability that a 0 was sent given that a 1 is received is (2/25) * (1 - P(0 sent)).
Step-by-step explanation:
To solve this problem, we can use conditional probabilities and the concept of Bayes' theorem.
a. To find the probability that a 1 is received, we need to consider the two possibilities: either a 1 was sent and remained unchanged, or a 0 was sent and got flipped to a 1 by the random error.
Let's denote:
P(1 sent) = 0.6 (probability a 1 is sent)
P(0→1) = 0.2 (probability a 0 is flipped to 1)
P(1 received) = ?
P(1 received) = P(1 sent and unchanged) + P(0 sent and flipped to 1)
= P(1 sent) * (1 - P(0→1)) + P(0 sent) * P(0→1)
= 0.6 * (1 - 0.2) + 0.4 * 0.2
= 0.6 * 0.8 + 0.4 * 0.2
= 0.48 + 0.08
= 0.56
Therefore, the probability that a 1 is received is 0.56.
b. If a 1 is received, we want to find the probability that a 0 was sent. We can use Bayes' theorem to calculate this.
Let's denote:
P(0 sent) = ?
P(1 received) = 0.56
We know that P(0 sent) + P(1 sent) = 1 (since either a 0 or a 1 is sent).
Using Bayes' theorem:
P(0 sent | 1 received) = (P(1 received | 0 sent) * P(0 sent)) / P(1 received)
P(1 received | 0 sent) = P(0 sent and flipped to 1) = 0.4 * 0.2 = 0.08
P(0 sent | 1 received) = (0.08 * P(0 sent)) / 0.56
Since P(0 sent) + P(1 sent) = 1, we can substitute 1 - P(0 sent) for P(1 sent):
P(0 sent | 1 received) = (0.08 * (1 - P(0 sent))) / 0.56
Simplifying:
P(0 sent | 1 received) = 0.08 * (1 - P(0 sent)) / 0.56
= 0.08 * (1 - P(0 sent)) * (1 / 0.56)
= 0.08 * (1 - P(0 sent)) * (25/14)
= (2/25) * (1 - P(0 sent))
Therefore, the probability that a 0 was sent given that a 1 is received is (2/25) * (1 - P(0 sent)).
A message is coded into the binary symbols 0 and 1 and the message is sent over a communication channel. The probability a 0 is sent is 0.4 and the probability a 1 is sent is 0.6. The channel, however, has a random error that changes a 1 to a 0 with probability 0.2 and changes a 0 to a 1 with probability 0.1. (a) What is the probability a 0 is received? (b) If a 1 is received, what is the probability a 0 was sent?
a. Find parametric equations and symmetric equations for the line passing through the points (-2, 4, 3) and (1, 2, 7).
b. At what point does this line intersect the yz-plane?
a) The parametric equations of the line are: x(t) = −2 + 3t, y(t) = 4 − 2t, z(t) = 3 + 4t and The symmetric equation of the line are: (x + 2)/3 = (y − 4)/−2 = (z − 3)/4
b) The line intersects yz-plane at (0, 8/3, 17/3)
The given points on the line are:
(x₁, y₁, z₁) = (−2, 4, 3)
(x₂, y₂, z₂) = (1, 2, 7)
The direction ratios of this line are:
⟨a, b, c⟩ = ⟨x₂ − x₁, y₂ − y₁, z₂ − z₁⟩
= ⟨1 + 2, 2 − 4, 7 − 3⟩
= ⟨3, −2, 4⟩
a) Parametric equations of the line:
These are given by:
x(t) = x₁ + at = −2 + 3t
y(t) = y₁ + bt = 4 − 2t
z(t) = z₁ + ct = 3 + 4t
Symmetric equation of the line:
This is given by:
(x − x₁)/a = (y − y₁)/b = (z − z₁)/c
(x + 2)/3 = (y − 4)/−2 = (z − 3)/4
b) When a line intersects the yz-plane, its x-coordinate is zero.
Using the parametric equations of the part (a):
x = 0
−2 + 3t = 0
3t = 2
t = 2/3
Substitute this in the parametric equations corresponding to y and z as well:
y = 4 −2t
= 4 − 2(2/3)
= 8/3
z = 3 + 4t
= 3 + 4(2/3)
= 17/3
Hence, the required point is: (x, y, z) = (0, 8/3, 17/3)
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A sequence is defined by the function A(n) =8+ (n -1)(-4).
Which term, n, would result in A(n) = -172?
A) 44
B) 46
C)692
D)700
Answer:
B. 46.
Step-by-step explanation:
First we set up the equation A(n)=-172 and substitute the given equation for A(n), giving us -172=8+(n-1)(-4). Simplifying, we get -180=(-4n+12), or -4n=-192, or n=48. However, n represents the number of terms in the sequence, and since the sequence starts with n=1, we need to subtract 1 from our answer to get the term number corresponding to A(n)=-172. Therefore, the answer is B) 46.
serious question:
I’ve been doing cardio for 30 minutes a day everyday and I’m on a diet and I’m losing fat like my love handles but my stomach isn’t getting flat or toned. Should I do more cardio or should I do ab exercises? If ab exercises can someone recommend me ab workout videos or workouts.
Btw I’m trying to slim my waist also so that’s why I’m hesitant on doing ab exercises.
Answer:
try growwithjo or mrandmrsmuscle on yt!!! they are fun and effective workouts.
Kelly and nadir both had maths tests last week, Kelly scored 47/68 and nadir scored 35/52. Who got the higher percentage score
Answer:
Kelly got a higher percentage score.
Step-by-step explanation:
35 / 52 = 0.673
47 / 68 = 0.691
Amir has 5 cups of water. He uses it to water 12 plants. Each plant gets
the same amount of water. How much water does each plant get?
Answer:
5/12 cup of water per plant
Find the shaded portion and type the answer as an integer or simplified fraction
To determine the shaded portion in the following figures on the image attached
Count the number of shaded portions and divide by the number of unshaded portions. =
(a)
(b)
(c)
(d)
Verify that the following function is a probability mass function, and determine the requested probabilities.
fx = (8/7(1/2)x
x = 0, 1, 2, ...
A. P(X = 2).
B. P(X ≤ 2).
C. P(X > 2).
D. P(X ≥ 1).
Is the function a probability mass function?
Answer:
yes
Step-by-step explanation:
PLEASE HELP !!! WILL MARK BRAINLIEST !!!
Answer:
A. 3. ASA
B. 1. SSS
C. 2. SAS
D. AAS
On a map 1 inch = 50 miles. If two cities are 3 1/2 inches apart, how many miles are they apart?
The answer is 175 miles but i dont know how to explain that i got that answer so please helppp
Answer:
3 inches is 150 and 1/2 is 25
Step-by-step explanation:
2. Amir's community center has an evening art class. He pays $5 every time he goes to the class. His cost, C(a), is given by C(a) = 5a, where a is the number of art classes Amir attends.
a. Identify the independent variable and tell what it represents.
b. Identify the dependent variable and tell what it represents.
Answer: a. The independent variable in the equation C(a) = 5a is a. It represents the number of art classes Amir attends.
b. The dependent variable in the equation C(a) = 5a is C(a). It represents the cost Amir incurs as he attends art classes. The dependent variable is dependent on the independent variable because the cost will change as the number of classes attended changes.
√2x² + 7x + 5√2 = 0
find the roots of the following quadratic equation by factorization method
PLS HELP ME FAST
Step-by-step explanation:
√2x² + 7x +√2=0
2x + 7x + √ 2 =0
√2=9x
x = o.15713484
pls help me I need help
Answer:
Step-by-step explanation:
Answer:
volume=base×length×height
surface area=2(length×base+base×height+length×height)
Ricky spends $103.19 in additional interest and charges on monthly payments as the result of a prior bankruptcy. If
Ricky had been able to save this money for one year and then put it into a savings account earning 3.1% simple interest,
how much money could he have in savings after two more years?
a. $1,238.28
b. $1,276.67
C. $1,315.06
d. $2,476.56
9514 1404 393
Answer:
C. $1,315.06
Step-by-step explanation:
Saving 103.19 per month for 12 months would give Ricky the amount of ...
12 × $103.19 = $1238.28
The amount of interest earned on this amount in one year is ...
I = Prt = $1238.28·0.031·1 = $38.39 . . . . rounded to nearest cent
Then the balance after 2 years will be ...
$1238.28 +2 × $38.39 = $1315.06
Answer:
c
Step-by-step explanation:
Please can you help me with this equation
-5/6e - 2/3e = -24
e=
I need a whole number for this answer, not a fraction
Answer:
e = 16
Step-by-step explanation:
-5/6e - 2/3e = -24
-5/6e + -2/3e = -24
-3/2e = -24
e = 16
Express cos M as a fraction in simplest terms.
\(\begin{array}{llll} \textit{using the pythagorean theorem} \\\\ a^2+o^2=c^2\implies a=\sqrt{c^2 - o^2} \end{array} \qquad \begin{cases} c=\stackrel{hypotenuse}{30}\\ a=\stackrel{adjacent}{MN}\\ o=\stackrel{opposite}{18} \end{cases} \\\\\\ MN=\sqrt{ 30^2 - 18^2} \implies MN=\sqrt{ 576 }\implies MN=24 \\\\[-0.35em] ~\dotfill\\\\ \cos(M )=\cfrac{\stackrel{adjacent}{24}}{\underset{hypotenuse}{30}} \implies \cos(M)=\cfrac{4}{5}\)
About 3% of the population has a particular genetic mutation. 600 people are randomly selected.
Find the mean for the number of people with the genetic mutation in such groups of 600.
The mean for the number of people with the genetic mutation in such groups of 600 is 18.
Given that,
About 3% of the population has a particular genetic mutation.
This means that for any group of people, 3% of the people has a particular genetic mutation.
This is a binomial distribution.
Probability that people having genetic mutation = 3% = 0.03
Random sample size = 600
Mean for a binomial distribution can be calculated as,
Mean = n × p
= 600 × 0.03
= 18
Hence the mean number of people having genetic mutation is 18.
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Find the area of AXYZ by following these steps.
X
✓ 1. Press Continue to circumscribe a rectangle around the triangle
✓ 2. Find the area of the rectangle. Area = 48 v units2
3. Find the area of A1. Area =
units2
Answer: 48
Step-by-step explanation:
The Area of rectangle is 48 unit².
What is Area?The total space occupied by a flat (2-D) surface or the shape of an object is defined as its area. The area of a plane figure is the space enclosed by its boundary. The number of unit squares that cover the surface of a closed form is the figure's area.
We have the graph from which we can write
width of rectangle = 8 unit
Length of rectangle= 6 unit
So, the area of rectangle
= lw
= 8 x 6
= 48 unit²
Thus, the Required Area is 48 unit².
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How much would a bicycle cost if it were marked down 15% from its original price of $289
Answer:
$260.65
Step-by-step explanation:
189/100=1.89
1.89x15=28.35
289-28.35=260.65
Have a good day:)
Answer:
$245.65
Step-by-step explanation:
1. Determine how much is being spent.
- You are paying for only 85% of the bike since it is discounted by 15%.
2. Multiply 0.85 and 289.
- If you are only paying for 85% of the bike, that is what needs to be found.
What is the degree of the polynomial, y^2+7x^14-10x^2?
The degree of the polynomial is 14
How to determine the degree of the polynomial?The polynomial is given as:
y^2+7x^14-10x^2
Here, we assume that the variable of the polynomial is x
The highest power of x in the polynomial y^2+7x^14-10x^2 is 14
Hence, the degree of the polynomial is 14
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flips a fair coin until a tail first appears, and if the number of tosses equals m, then Tom gets a payoff for 2 m pounds. Calculate the expected value of his payoff.
Answer: the expected value of Tom's payoff is m²
Step-by-step explanation:
Given the data in the question,
E[x] = mp
where p = 1/2
Now Tom gets payoff pounds until a tail first appears = 2m pounds
so
E[x] = m × 1/2 × 2m
E[x] = m²
Therefore the expected value of Tom's payoff is m²
write the polynomial in factored form. p(x) = (x + 5)(x − )(x + ); multiplicity of zeros calculator; multiplicity calculator; desmos; how to find multiplicity; multiplicity of 4; multiplicity of roots example; how to find the zeros and multiplicity of a polynomial
The other two factors are (x-3), and (x+4)
given that
polynomial p(x) = (x+5)(x-)(x+)
p(x) = \(x^{3}\) + 6\(x^{2}\) -7x - 60
So,
\(x^{2}\) +x -12 =0
\(x^{2}\) + 4x -3x -12 = 0
x(x+4) - 3(x + 4) = 0
(x -3)(x+4) = 0
the other two factors are (x-3), and (x+4).
how to find the zeros and multiplicity of a polynomialPolynomial: A polynomial is a function that can be written in the form of
p(x)= \(a_{n}\)\(x^{n}\) + \(a_{n-1}\)\(x_{n-1}\)+..........+\(a_{1}\)x +\(a_{0}\) each ai is a real number, an≠0 and n≥0
Zero: A zero of a polynomial is an x-value for which the polynomial equals zero. This means that if x = c is a zero, then p(c) = 0 The zeros correspond to the x-intercepts of the polynomial
Multiplicity: The multiplicity of a zero, x = c, is the number of times the factor (x−c) appears in the fully factored form of the polynomial. This is equal to the exponent on the factor.
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maths I need help asap it's about sequence and functions good rewards!
Answer:
a₄ = 50
Step-by-step explanation:
work back from the seventh term a₇ using the reverse of the term to term rule , that is
divide by 2 then subtract 3
a₇ = 442
a₆ = 442 ÷ 2 - 3 = 221 - 3 = 218
a₅ = 218 ÷ 2 - 3 = 109 - 3 = 106
a₄ = 106 ÷ 2 - 3 = 53 - 3 = 50
Answer:
\(a_{4}=50\)
Step-by-step explanation:
\(a_{4} = 50\)
a₇ = 442
a₆ = 442 ÷ 2 - 3 = 221 - 3 = 218
a₅ = 218 ÷ 2 - 3 = 109 - 3 = 106
a₄ = 106 ÷ 2 - 3 = 53 - 3 = 50
How would I begin to find the equation for this? I will post picture of problem below if I can figure out how to upload photo. It's a graph. I have 10 extra credit of these to do...teachers always make extra credit on things we've never even seen before, ugh. Thanks in advance!
The equation of the parabola is y = (x + 2)² - 2, and the value of f(-1) is -1 after plugging x = -1 in the function.
What is a parabola?It is defined as the graph of a quadratic function that has something bowl-shaped.
(x - h)² = 4a(y - k)
(h, k) is the vertex of the parabola:
a = √[(c-h)² + (d-k²]
(c, d) is the focus of the parabola:
From the graph the vertex form of the parabola:
(-2, -2)
h = -2
k = -2
The vertex form of the parabola:
y = a(x - h)² + k
y = a(x + 2)² - 2
Plug x = 0
y = 2
a = 1
y = (x + 2)² - 2
Or
f(x) = (x + 2)² - 2
f(-1) = (-1 + 2)² - 2
f(-1) = -1
Thus, the equation of the parabola is y = (x + 2)² - 2, and the value of f(-1) is -1 after plugging x = -1 in the function.
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Help please friendssssssssss
Answer: 6/(6+2x) ; (-infinity, -3) U (-3, infinity)
Step-by-step explanation:
(a) This can be read as f(x) composed of g(x). Plug in the expression given for g(x) for every x value in f(x):
(6/x)/(6/x+2)
I gave the terms in the denominator the same denominator to combine the bottom two terms into one term. 6/x + 2 is equal to 6/x + 2x/x -->
(6 +2x)/x
Do the classic keep, change, flip. \(\frac{6}{x} * \frac{x}{6+2x}\)
This simplifies to: \(\frac{6}{6+2x}\)
(b) Domain is all real numbers except for what makes the denominator equal to 0. 6 + 2x = 0 when x = -3. Therefore it is all real numbers except -3.
It is known that the number of hours a student sleeps per night has a normal distribution. The sleeping time in hours of a random sample of 8 students is given below. See Attached Excel for Data. 8.6, 8.3, 7.6, 6, 7.1, 5.6, 5.1, 6 Compute a 98% confidence interval for the true mean time a student sleeps per night and fill in the blanks appropriately. We have 98 % confidence that the true mean time a student sleeps per night is between and hours. (round to 3 decimal places)
We have 98 % confidence that the true mean time a student sleeps per night is between 6.2928 hours and 7.1832 hours.
Mean = (8.6 + 8.3 + 7.6 + 6 + 7.1 + 5.6 + 5.1 + 6)/ 8 = 6.7875
Standard deviation = √Σ(x - mean)²/n
Σ(x - mean)² = (8.6 - 6.7875)^2 + (8.3 - 6.7875)^2 + (7.6 - 6.7875)^2 + (6 - 6.7875)^2 + (7.1 - 6.7875)^2 + (5.6 - 6.7875)^2 + (5.1 - 6.7875)^2 + (6 - 6.7875)^2
Standard deviation : \(\sqrt{11.82875}/8\)
s = 0.42991
Confidence interval is written in the form,
(Sample mean - margin of error, sample mean + margin of error)
The sample mean, x is the point estimate for the population mean.
Margin of error = z × s/√n
Where
sample standard deviation
number of samples
From the information given, the population standard deviation is unknown and the sample size is small, hence, we would use the t distribution to find the z score
In order to use the t distribution, we would determine the degree of freedom, df for the sample.
df = n - 1 = 8 - 1 = 7
Since confidence level = 98% = 0.98, α = 1 - CL = 1 - 0.98 = 0.02
α/2 = 0.02/2 = 0.01
the area to the right of z0.01 is 0.01 and the area to the left of z0.01 is 1 - 0.01 = 0.99
Looking at the t distribution table,
z = 2.998
Margin of error = 2.998 × 0.42/√8
= 0.4452
The lower limit of this confidence interval is
6.738 - 0.4452 = 6.2928
The upper limit of this confidence interval is
6.738 + 0.4452 = 7.1832
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In this triangle what is the value of x
Answer:
Step-by-step explanation:
error
Answer:
x ≈ 75.2
Step-by-step explanation:
using the tangent ratio in the right triangle
tan62° = \(\frac{opposite}{adjacent}\) = \(\frac{x}{40}\) ( multiply both sides by 40 )
40 × tan62° = x , then
x ≈ 75.2 ( to the nearest tenth )
The tables represent the points earned in each game for a season by two football teams.
Panthers
14 10 10
10 17 3
28 13 17
32 16 10
14 7 21
Cowboys
10 3 8
6 24 12
21 3 10
28 28 7
7 13 3
Which team had the best overall record for the season? Determine the best measure of center to compare and explain your answer.
Panthers; they have a larger median value of 14 points
Cowboys; they have a larger median value of 10 points
Panthers; they have a larger mean value of about 14.8 points
Cowboys; they have a larger mean value of about 12.2 points
Answer:
Therefore, the Panthers had a better overall record for the season, with a total of 212 points earned compared to the Cowboys' total of 173 points.
Step-by-step explanation:
To compare the measures of center, we can calculate the mean and median points earned by each team:
Panthers: Mean = 212/15 = 14.13 points, Median = 14 points
Cowboys: Mean = 173/15 = 11.53 points, Median = 10 points
Based on these calculations, we can see that the Panthers have a larger mean value of about 14.13 points compared to the Cowboys' mean value of about 11.53 points. However, the median value for both teams is less useful for comparison since they are only one point apart. Therefore, we can conclude that the Panthers had the better overall record for the season based on both the total points earned and their larger mean value.
So, the answer is Panthers; they have a larger mean value of about 14.8 points (Option C is incorrect as the mean value of Panthers is approximately 14.13 and not 14.8).