Answers
Answer:
A D 1 Vertical
Step-by-step explanation:
x always represents 1
Related Questions
A random number generator is used to select a number from 1 to 100. What is the probability of selecting the number 167?
Answers
Find the area of this circle. Use 3 for .
A = 7r2
10 ft
[?] ft2
Answers
Answer:
300ft^2
Step-by-step explanation:
pi*r^2
pi*10^2
pi*100
3*100
300
Answer:
Step-by-step explanation:
3*[tex]5^{2}[/tex] = 75
The combined SAT scores for the students at a local high school are normally distributed with a mean of 1527 and a standard deviation of 295. The local college includes a minimum score of 1380 in its admission requirements. What percentage of students from this school earn scores that satisfy the admission requirement
Answers
Answer:
69.15% of students from this school earn scores that satisfy the admission requirement.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 1527 and a standard deviation of 295.
This means that [tex]\mu = 1527, \sigma = 295[/tex]
The local college includes a minimum score of 1380 in its admission requirements. What percentage of students from this school earn scores that satisfy the admission requirement?
The proportion is 1 subtracted by the pvalue of Z when X = 1380. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{1380 - 1527}{295}[/tex]
[tex]Z = -0.5[/tex]
[tex]Z = -0.5[/tex] has a pvalue of 0.3085
1 - 0.3085 = 0.6915
0.6915*100% = 69.15%
69.15% of students from this school earn scores that satisfy the admission requirement.
What is the value of d/dx sin (2x-Pi/3) at x= Pi
Answers
Answer:
1/2 at x=pi
Step-by-step explanation:
d/dx sin(x) = cos(x)
Therefore:
d/dx sin(2pi-pi/3) = cos(5pi/3) = 1/2
A lab technician is tested for her consistency by making multiple measurements of the cholesterol level in one blood sample. The target precision is a standard deviation of 1.1 mg/dL or less. If 20 measurements are taken and the standard deviation is 1.6 mg/dL, is there enough evidence to support the claim that her standard deviation is greater than the target, at α = 0.01?
Answers
Answer:
We Do not have enough evidence
Step-by-step explanation:
H0 : σ² ≤ 1.1
H0 : σ² > 1.1
The test statistic (X²) :
χ² = [(n - 1) × s²] ÷ σ²
n = sample size, = 20
s² = 1.6
σ² = 1.1
α = 0.01
χ² = (19 * 1.6) / 1.1
χ² = 27.64
Pvalue :
Using the Pvalue from Chisquare score calculator ; χ² = 27.64 ; df = 19
Pvalue = 0.091
If Pvalue < α ; Reject H0
0.091 > 0.01
Hence, Pvalue > α ; Thus we fail to reject H0.
We thus conclude that, we do not have enough evidence to support the claim that her standard deviation is greater than the target.
Solve: (-6)(-7)
Divide or multiple
Answers
Answer: 42
Step-by-step explanation:
If they are in parentheses, you are going to multiply them, and when you multiply two negatives, you make a positive. which gives you 42.
The scores of individual students on the ACT Exam are modeled as normally distributed with a mean of19.6 and a standard deviation of 5.0. At Voldemort High, 64 seniors take the test. Assume the individualscores at this school are modeled using the same distribution as national scores. What is the samplingdistribution of the sample average score for this random sample of 64 students
Answers
Answer:
The sampling distribution of the sample average score for this random sample of 64 students is approximately normal, with mean 19.6 and standard deviation 0.625.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Mean of 19.6 and a standard deviation of 5.0.
This means that [tex]\mu = 19.6, \sigma = 5[/tex]
What is the sampling distribution of the sample average score for this random sample of 64 students?
By the Central Limit Thoerem, the sampling distribution of the sample average score for this random sample of 64 students is approximately normal, with mean 19.6 and standard deviation [tex]s = \frac{5}{\sqrt{64}} = \frac{5}{8} = 0.625[/tex]
11 take away 2 times minus 7 plus 4
Answers
Answer:
(11 x 2) - 7 + 4
Is your algebra expression.
Quadrilateral K is the image of Quadrilateral K under a dilation
Answers
I’m confused
Why does my app keep saying I’m not a member even tho it ends on 10/15/21
Answers
Answer:
Oof I have no idea 0_0
Step-by-step explanation:
I dont have brainly plus but I still have unlimited access...
I'm so sorry!!!
Have a nice day <3
the 11th term of an arithmetic sequence is 57 and the sum of the first and fourth term is 29. determine the first three terms of the sequence, the formular of nth term
Answers
Let a (n) denote the n-th term of the sequence. Since the terms form an arithmetic sequence, you have
a (n) = a (n - 1) + d
for some fixed constant d. You can write any term in the sequence as a function of the first term:
a (n) = [a (n - 2) + d] + d = a (n - 2) + 2d
a (n) = [a (n - 3) + d] + 2d = a (n - 3) + 3d
and so on, down to
a (n) = a (1) + (n - 1) d
so given that a (11) = 57 (so that n = 11), you have
a (1) + 10d = 57 … … … [1]
The sum of the first and fourth terms is 29:
a (1) + a (4) = 29
but we can write a (4) in terms of a (1) :
a (1) + [a (1) + 3d] = 29
which gives us another equation in a (1) and d :
2 a (1) + 3d = 29 … … … [2]
Now solve [1] and [2] :
-2 (a (1) + 10d) + (2 a (1) + 3d) = -2 (57) + 29
-17d = -85
d = 5
a (1) + 10d = a (1) + 50 = 57
a (1) = 7
Then the n-th term of the sequence is given by
a (n) = 7 + 5 (n - 1) = 5n + 2
Abigail ordered a 32 oz steak that cost $60.
(cost to weight)
Answers
If you do 1.9 times 32 you get 60 plus 8 cents
Or it can be 1.8 times 32 which is 57
Solve: 3,125 = 5–10 + 3x x =
Answers
Answer:
5
Step-by-step explanation:
Answer:
The answers is 3 for Evaluate using the given value
The answers is 3,125=-5+3x for simplify the Matrix
Step-by-step explanation:
Please tell me if those ways are correct
And how did you want me to solve it
Is there a relationship between the percent of high school graduates in each state who took the SAT and the state’s mean SAT Math score? Here is a residual plot from a linear regression analysis that used data from all 50 states in a recent year
A residual plot shows “Percent of high school graduates taking the SAT” along the horizontal axis ranging from 0 to 90 in increments of 10 and “Residual” along the vertical axis ranging from negative 50 to 50 in increments of 25. A horizontal line is drawn at 0 on the vertical axis across the graph. Dots are scattered on the either side of the line across the graph and between negative 30 and 35 on the vertical axis. A dot is shown before 20 on the horizontal axis between negative 70 on the vertical axis.
Explain how the residual plot shows that the Linear condition for performing inference about the slope is, or is not, met.
The variability of the residuals in the vertical direction is roughly the same from the smallest to the largest -value, which suggests that the relationship between mean SAT score and percent taking is not linear.
There is clear curvature in the residual plot, which confirms that the relationship between mean SAT score and percent taking is linear.
There is clear curvature in the residual plot, which suggests that the relationship between mean SAT score and percent taking is not linear.
There is clear curvature in the residual plot, which suggests that the relationship between mean SAT score and residual values is not linear.
The variability of the residuals in the vertical direction is roughly the same from the smallest to the largest -value, which confirms that the relationship between mean SAT score and percent taking is linear.
Answers
Answer:
There is clear curvature in the residual plot, which suggests that the relationship between mean SAT score and percent taking is not linear.
Step-by-step explanation:
Find sin 0
15
A.
B.
c. 15
D.
Answers
Come up with a singular conversion factor that converts meters squared into inches squared. Be sure to show your work for each step of the process.
sorry for all the questions, but i literally dont know and you guys are helping sm♡
Answers
Answer:
Square Meters to Square Inches Conversion 1 Square meter is equal to 1550.0031 square inches. To convert square meters to square inches, multiply the square meter value by 1550.0031.
The Least-squares problem that has minimal norm can be given using factorization.
What is Least square method?The least squares method is used to find the best fit for a set of data points by minimizing the sum of the offsets from the plotted curve. Singular value decomposition (SVD) is a factorization of a real or complex matrix.
here, we have,
It is a widely used technique to decompose a matrix into several component matrices, exposing many of the useful and interesting properties of the original matrix. The singular value decomposition, guaranteed to exist, is A=UΣV.
When we have the equation system Ax=b, we calculate the SVD of A as A=UΣVT. The matrices U and VT have a very special property. They are unitary matrices. One of the main benefits of having unitary matrices like U and VT is that if we multiply one of these matrices by its transpose (or the other way around), the result equals the identity matrix.
The singular value decomposition (SVD) of matrix A is very useful in the context of least squares problems. It is also very helpful for analyzing the properties of a matrix.
To know more about the Least square method,
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Complete question:
calculate least squares solution using svd a matrix has the singular value decomposition what is the solution to the least-squares problem that has minimal norm ?
A baseball league finds that the speeds of pitches are normally distributed,
with a mean of 89 mph and a standard deviation of 2.4 mph. One pitch is
thrown at a speed of 83.2 mph. What is the z-score of this pitch? Round your
answer to two decimal places.
A. -2.42
B. -2.72
C. 2.42
D. 2.72
Answers
Find the volume. Round to the nearest tenth if necessary.
Answers
Answer:
120
Step-by-step explanation:
Since you have to find volume you have to multiply all the numbers.
So, 4*5*6 = 120
Answer:
120cm2
Step-by-step explanation:
Volume= length times width times the height. So.. 6×5×4= 120cm2 (btw the 2 means squared)
how to deal with never being loved after your bf told u he never actually loved you
Answers
Answer:
don't lose your hope
think positive
de una bolsa donde hay veinte bolas numeradas del 1 al 20 extraemos una, A: obtener un número par , B: obtener número primo, C: obtener un número tal que su suma de cifras sea 5,
a) comprobar que cumplan con las propiedades asociativa y distributiva en los sucesos, b) comprobar que se cumplan con las propiedades de las leyes de morgan entre los sucesos AyC , ByC, AyB , c) efectúa las siguientes operaciones en los sucesos unión entre AB, BC, AB, intersección entre AB,BC, AB, diferenciación entre AB, BA, CA, AC,
Answers
Para resolver este problema se aplica la ecuación de la probabilidad, cuya ecuación es la que se presenta a continuación:
P = Nf/N * 100%
Los datos son los siguientes:
Nf = 1
N = 20
Sustituyendo los datos en la ecuación se tiene que la probabilidad es la siguiente:
P = 1/20 * 100%
P = 5%
La probabilidad de extraer el número que deseas en un intento es de 5%.
What is the area, in square centimeters, of the shaded part of the rectangle shown below
Answers
Answer:
Step-by-step explanation:
i think you forgot to link or import the question
How do the temperatures compare? Order the temperatures from coldest to warmest
52°F
51.8°F
37.3°F
-17°F
-43.6°F
-37.4'F
which order
Answers
Answer:
-43.6° F, -37.4° F, -17° F, 37.3° F, 51.8° F, 52° F
Step-by-step explanation:
The greater the number, the warmer the temperature.
Can someone please help me
Answers
Answer: 120cm squared
Step-by-step explanation: To do this you can cut off one of the 'triangle ends' on the trapezoid and add it to the other side to make a rectangle. Since the top is 10cm, each triangle will have a base of 5cm, so the bases will be 15cm when you subtract 20-5. Then you just have 8 * 15 which is 120cm SQUARED. This may have been a little confusing so i attachecd a diagram.
A wire is stretched from the top of a 12 ft pole to a point on the ground 9 feet from the base of the pole. Find the length of the wire.
Answers
Answer:
with 3 lenght
Step-by-step wexplanation:
16-x=-2
Please I need help Solve for X
Answers
Answer:
x=18
Step-by-step explanation:
Answer:
first group like terms
16+2=x
18=x
x=18
There are 64 teams in a basketball tournament. All teams play in the
first round but only winning teams move on to subsequent rounds.
Write an explicit rule for T(n), the number of games in the nth round of
the tournament. State the domain:
Answers
The domain of this function is n ≥ 1, where n is the round of the tournament.
What is domain and range of the function?The domain and range are defined for a relation and they are the sets of all the x-coordinates and all the y-coordinates of ordered pairs respectively.
The explicit rule for T(n), the number of games in the nth round of the tournament is 2ⁿ⁻¹. The domain of this function is n ≥ 1, where n is the round of the tournament.
Since all teams play in the first round, the number of games in the first round (n = 1) is 2¹⁻¹, which is equal to 1. As the rounds progress, the number of games in each round is doubled. T
herefore, the number of games in the second round (n = 2) is 2²⁻¹, which is equal to 2. The number of games in the third round (n = 3) is 2³⁻¹, which is equal to 4.
This pattern continues for each round, as the number of games in the nth round is 2ⁿ⁻¹.
Therefore, the domain of this function is n ≥ 1, where n is the round of the tournament.
To learn more about the domain and range visit:
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A store pays $35 for a fish tank. The markup is 20%. What is the selling price?
Answers
HIiiiiiiiiiiiiiiiiiiiiiiiii
Answers
Answer:
hi the answer is 7.3
Step-by-step explanation:
hope it helps you have a good day
Well this is very hard and I need help passing do anybody know the answer to this question
Answers
Answer:
-1.9
Step-by-step explanation:
[tex]16 \: 3 \: by \: 4[/tex]
evaluate the answer according to the law of exponents
Answers
Answer:
16 3/4=[16×4+3]/4=67/4 is your answer
