Answer:
Hey there!
Substitute would be your answer.
Let me know if this helps :)
the indexed variables (members) of an array must be integers. true or false
It is true that the indexed variables (members) of an array must be integers.
The indexed variables or members of an array must be integers. This is because arrays are data structures that store elements in a contiguous block of memory, and each element is accessed using an index. Indexing allows us to uniquely identify and retrieve specific elements within the array. In most programming languages, including C, C++, Java, and Python, array indices are integers and must be whole numbers (positive or negative) without any fractions or decimals. Attempting to use non-integer values as indices would result in a compilation error or unexpected behavior.
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Point A (-2,-10) is reflected over the x-axis. Write the coordinates of A'. * (2.-10) O (2.10) O (-2,-10) (-2, 10) Send me a copy of my responses. Submit
Answer:
(2, -10)
Explanation:
Reflection over the x-axis puts a negative sign on the x value.
Answer:
-2,10
Step-by-step explanation: i took the test and when doing this you only change the y but keep the x.
A gallon of milk cost $2.79 in the year 2000. In 2015, it cost $3.98. What is the percent of change of the gallon of milk from 2000 to 2015?______ (round your answer to the nearest tenth and don't forget the % sign)
At age 45 when the deferred payments from his current contract ends, all-star shortstop Alex Rodriguez plans to have $230 million in savings from his baseball playing days. He wants two things from his savings: a 40-year ordinary annuity and $500 million at age 60 in order to purchase majority ownership in his native Miami's Florida Marlins. How large can his annual annuity payment be based on this information and assuming his savings can earn 8% annually after age 45 ? $6,069,727 $5,620,118 $6,906,832 $6,395,215
Therefore, the annual annuity payment can be approximately $6,069,727.
To calculate the size of the annual annuity payment, we can use the present value formula for an ordinary annuity. The formula is given by:
PMT = PV / [(1 - (1 + r)⁻ⁿ) / r]
Where:
PMT = Annual annuity payment
PV = Present value of the annuity
r = Annual interest rate
n = Number of periods
Given:
PV = $230 million
r = 8% = 0.08
n = 40 years
Using the formula, we can calculate the annual annuity payment:
PMT = 230,000,000 / [(1 - (1 + 0.08)⁻⁴⁰) / 0.08]
PMT ≈ $6,069,727
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consider a wave form s(t)=5 sin 4 π t 12 sin 20 π t. the signal s(t) is sampled at 24 hz. we expect to see ailiasing to happen in this sampling process. true or false
False.
When is aliasing expected to happen?Hi! You asked whether aliasing is expected to happen when the waveform s(t) = 5 sin(4πt) + 12 sin(20πt) is sampled at 24 Hz. To answer this, let's follow these steps:
1. Identify the frequencies of the individual sinusoidal components in the signal s(t). The frequencies are given by (ω/2π) where ω is the coefficient of t in the sine function.
- For 5 sin(4πt), the frequency is (4π/2π) = 2 Hz
- For 12 sin(20πt), the frequency is (20π/2π) = 10 Hz
2. Calculate the Nyquist frequency, which is half of the sampling rate. In this case, the sampling rate is 24 Hz, so the Nyquist frequency is 12 Hz.
3. Compare the frequencies of the signal components to the Nyquist frequency. If any component has a frequency higher than the Nyquist frequency, aliasing is expected to occur.
In this case, both 2 Hz and 10 Hz are below the Nyquist frequency of 12 Hz. Therefore, we do not expect aliasing to happen in this sampling process. So, the answer is false.
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Please help please help
simplify this pleaseeeeeee
Answer:
\(-3y+10\)
Answered by: ms115
Thank You!
Answer:
-3y+5
Step-by-step explanation:
First, you distribute
12y-5(3y-2)
12y-15y+10
Next, you add like terms
12y-15y+10
-3y+5
Solve the following quadratic equation for all values of xx in simplest form.
4(x-2)^2=16
Answer:
\(x=4, x=0\)
Step-by-step explanation:
I answered this here, lol.
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A storage box with a square base must have a volume of 90 cubic centimeters. The top and bottom cost $0.20 per square centimeter and the sides cost $0.10 per square centimeter. Find the dimensions that will minimize cost. (Let x represent the length of the sides of the square base and let y represent the height. Round your answers to two decimal places.)
Answer:
x = 2,24 cm
y = 17,96 cm
Step-by-step explanation:
The volume of a cube is:
V = x²*y where x is the side of the square base and the height of the cube
V = 90 cm³
And the surface area of the cube is:
S(c) = Area of the base (A₁ ) + Lateral area (A₂)
A₁ = x² and V = x²*y then y = 90/x²
Therefore total cost is:
Cost of the top plus bottom C₁ = 0,20 * 2 * x² C₁ = 0,4*x²
Lateral cost (C₂) is C₂ = 0,10 * x*y then C₂ = 0,10*x ( 90/x²) C₂ = 9/x
C(x) = 0,4*x² + 9/x
We take derivatives on both sides of the equation to get:
C´(x) = 0,8*x - 9/x²
C´(x) = 0 0,8*x - 9/x² = 0
0,8*x³ - 9 = 0
0,8 * x³ = 9
x³ = 11,25
x = ∛ 11,25
x = 2,24 cm
And y = 90 / 5,01 y = 17,96 cm
the temperature is dropping -3.75 degrees per hour. how many hours will the temperature drop for 4.5 hours
Answer:
It will drop 16.875 degrees
Step-by-step explanation:
3.75 × 4 = 15
.5 × 3.75 1.875
Answer:
-16.875
Step-by-step explanation:
This equation is quite simple and will only require one equation to solve. This is the equation,
-3.75×4.5=-16.875
The final answer is -16.875
1. if the sum of the square of the number and 4 time the number is 21 what is the number?
2.if the sum of the square of the number and 4 time that number is 21 the what is the number?
3. the length of the rectangle is 3 less than twice the width. if the area is 9 square ft, the length and width of the rectangle.
4.given the figure below. find the area of the shaded part of the rectangle if the area of the big but angle is 6 times the area of the unshaded rectangle
Answer:
Step-by-step explanation:
1. Let the number be x
x^2 + 4x = 21
x^2 + 4x - 21 = 0
Solve the quadratic equation using factorization method
x^2 - 3x + 7x - 21 = 0
x(x - 3) + 7(x - 3) = 0
(x - 3)(x+7) = 0
x - 3 = 0 x + 7 = 0
x = 3 x = -7
The number is either 3 or -7
2. Same solution as number 1
3. Let
Width = x
Length = 2x - 3
Area of the rectangle = 9 square ft
Area of a rectangle = length × width
9 = (2x - 3) (x)
9 = 2x^2 - 3x
2x^2 - 3x - 9 = 0
Solve using quadratic formula
a = 2
b = -3
c = -9
x = -b +or- √b^2 - 4ac / 2a
= -(-3) +or- √(-3)^2 - 4(2)(-9) / 2(2)
= 3 +or- √ 9 - (-72) / 4
= 3 +or- √9 + 72 / 4
= 3 +or- √81 / 4
= 3 +or- 9 / 4
x = (3 + 9)/4 or (3 - 9) / 4
= 12 / 4 or -6 / 4
x = 3 or -3/2
Width can not be a negative value
So,
Width = x = 3 ft
Length = 2x - 3
= 2(3) - 3
= 6 - 3
= 3ft
2.if the sum of the square of the number and 4 time that number is 21 the what is the number?
3. the length of the rectangle is 3 less than twice the width. if the area is 9 square ft, the length and width of the rectangle.
4.given the figure below. find the area of the shaded part of the rectangle if the area of the big but angle is 6 times the area of the unshaded rectangle
Unshaded area
Length = 2x
Width = x
Shaded area
Length = (2x+3)
Width = (x+3)
Area of the shaded area = 6 × the unshaded area
(2x) (x) = 6(2x + 3)(x+3)
2x^2 = 6(2x^2 + 6x + 3x + 9)
2x^2 = 12x^2 + 36x + 9x + 54
2x^2 = 12x^2 + 45x + 54
12x^2 + 45x + 54 - 2x^2 = 0
10x^2 + 45x + 54 = 0
What is the equation to find the slope
m=
Answer:
\(m=\frac{y2-y1}{x2-x1}\)
Step-by-step explanation:
Answer:
\(\huge\boxed{m=\frac{y_2-y_1}{x_2-x_1} }\)
Step-by-step explanation:
The equation for slope is \(m=\frac{y_2-y_1}{x_2-x_1}\), when given two points,
\((x_1,y_1), and (x_2,y_2)\).
Hope it helps :) and let me know if you want me to elaborate.
What is the volume of this prism?
Answer:
in the explanation
Step-by-step explanation:
seperate the prism into two. for the long rectanglular prism the formula is (6x2)x2 which is equal to 24. for the wider rectangular prism it's (4x4)x2=32. Add 32 and 24 together which makes the answer 56
Recall that the z-value associated with a value measures the number of standard deviations the value is from the mean.If
a particular standardized test has an average score of 500 and a standard deviation of 100, what z-value corresponds to a score of 350?
The z-score corresponding to a score of 350 is given as follows:
z = -1.5.
How to obtain the amount using the normal distribution?We first must use the z-score formula, as follows:
\(Z = \frac{X - \mu}{\sigma}\)
In which:
X is the measure.\(\mu\) is the population mean.\(\sigma\) is the population standard deviation.The z-score represents how many standard deviations the measure X is above or below the mean of the distribution, and can be positive(above the mean) or negative(below the mean).
The z-score table is used to obtain the p-value of the z-score, and it represents the percentile of the measure represented by X in the distribution.
The mean and the standard deviation for this problem are given as follows:
\(\mu = 500, \sigma = 100\)
Hence the z-score when X = 350 is given as follows:
Z = (350 - 500)/100
Z = -1.5.
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The two-way table shows the number of boys and girls in the school band and choir. Is there a greater percentage of girls in the school band or in the choir? Explain.
Answer:
the school band
Step-by-step explanation:
the band, the band has a percentage of 53.85...,which is (14/26)x100, and the choir has 35.71% which is (5/14)x100
(3x+10)(2x^2+1)(2-x)>0
After solving the given expression (3x+10)(2x²+1)(2-x)>0 the answer is
(- 6x⁴ - 3x³ + 37x² - 4x + 20) > 0.
What are expressions?A group of numbers or variables combined with the operations +, –, × or ÷ form an expression.Algebraic expressions with variables, numbers, and mathematical operators, as opposed to arithmetic expressions that only contain numbers and mathematical operators.So, (3x+10)(2x²+1)(2-x)>0:
Solve the expression as follows:
3x{(2x²+1)(2-x)} + 10{(2x²+1)(2-x)}3x{(2x²(2-x)+1(2-x)} + 10{(2x²(2-x)+1(2-x)}3x{4x² - 2x³ + 2 - x} + 10{4x² - 2x³ + 2 - x}12x³ - 6x⁴ + 6x - 3x² + 40x² - 20x³ + 20 - 10x- 6x⁴ + 12x³ - 20x³ + 40x² - 3x² + 6x - 10x + 20- 6x⁴ - 3x³ + 37x² - 4x + 20 > 0Therefore, after solving the given expression the answer is (- 6x⁴ - 3x³ + 37x² - 4x + 20) > 0.
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Evaluate the discriminant and determine the number and type of solutions to the equation. 6x² - 4x+3 = 0
Answer:
no solutions
Step-by-step explanation:
6x² - 4x + 3 = 0
Therefore, a = 6, b = -4 and c = 4
Discriminant = b² - 4ac
⇒ (-4)² - (4 x 6 x 4) = 16 - 96 = -80
Therefore, b² - 4ac < 0 so no solutions to the equation
Rosa has a chicken farm. The ratio of red to black chickens is 2 to 3. If she has a total of 20 chickens, how many are red?
Answer: If 2 out of every 3 chickens are red, then about 13 chickens would be red. There is no whole-number answer because 20/3 cannot be simplified to a whole number.
evaluate the expression 6x + 4 9/10 when x = 2/3.
x=2/3
6(2/3) + 4 9/10 =4 + 4 9/10 = 8 9/10
Answer:
2x-1=y,2y+3=x
Step-by-step explanation:
no explanation
suppose 60% of the banks in switzerland are private organizations. if a sample of 469 banks is selected, what is the probability that the sample proportion of private banks will be greater than 65% ? round your answer to four decimal places.
The probability that the sample proportion of private banks will be greater than 65% is 0.1548.
Given that 60% of banks in Switzerland are private organizations.
If a sample of 469 banks is selected, we need to find the probability that the sample proportion of private banks will be greater than 65%.
Let p be the proportion of private banks in a sample of 469 banks.
Then
q = 1 - p
= 1 - 0.6
= 0.4 (as the percentage of private banks is given to be 60%)
Sample size, n = 469
We are to find the probability that the sample proportion of private banks will be greater than 65%.
That is, we need to find P(p > 0.65).
We use the normal distribution for finding probabilities associated with proportions.
We can use the formula as follows:
z = (p - P) / √[PQ/n],
where P is the population proportion (given as 0.6),
Q = 1 - P
= 0.4, and
n = 469
Putting all the given values in the above formula, we get;
z = (0.65 - 0.6) / √[0.6 × 0.4 / 469]
z = 1.0182
P(p > 0.65) = P(z > 1.0182)
Using the standard normal table, we get; P(z > 1.0182) = 0.1548
Therefore, the probability that the sample proportion of private banks will be greater than 65% is 0.1548 (rounded to four decimal places).
Hence, the answer is 0.1548.
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1. The temperature in Lafayette , Louisiana is 5°C at 5 am in the morning. If the temperature keeps
on decreasing by 3°C every hour, what will be the temperature in Lafayette by 4 pm at night?
Answer:
-28° C
Step-by-step explanation:
First, find how many hours are between 5 am and 4 pm:
This will be 11 hours
Then, multiply 11 by -3 since it decreases by 3 each hour:
11(-3)
= -33
Then, subtract 33 from 5
5 - 33
= -28
So, it will be -28° C by 4 pm
how many samples of size n=2 can be drawn from this population
The samples of size n = 2 that can be drawn from this population is 28
How many samples of size n=2 can be drawn from this populationFrom the question, we have the following parameters that can be used in our computation:
Population, N = 8
Sample, n = 2
The samples of size n = 2 that can be drawn from this population is calculated as
Sample = N!/(n! * (N - n)!)
substitute the known values in the above equation, so, we have the following representation
Sample = 8!/(2! * 6!)
Evaluate
Sample = 28
Hence, the number of samples is 28
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Complete question
A finite population consists of 8 elements.
10,10,10,10,10,12,18,40
How many samples of size n = 2 can be drawn this population?
What is the perimeter
of a regular octagon
if each side is 7 inches.
Pls help!
Answer:
56
Step-by-step explanation:
since an octagon has 8 sides, you do 7x8 and you get 56.
Answer: It’s 56 if you multiply it by the number of sides
Step-by-step explanation:
a set of x and y scores has b = 4, mx = 12, and my = 51. what is the y-intercept (a) for the regression equation?
The y-intercept for the regression equation is 3, given that b = 4, Mx = 12, and My = 51. So, the correct option is C).
The formula for the y-intercept of the regression equation is
a = My - b(Mx)
where My is the mean of the dependent variable (y), b is the slope, and Mx is the mean of the independent variable (x).
Given that b = 4, Mx = 12, and My = 51, we can substitute these values in the formula to find the y-intercept
a = 51 - 4(12)
a = 51 - 48
a = 3
Therefore, the y-intercept (a) for the regression equation is 3.
The correct Answer is C) 3.
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--The given question is incomplete, the complete question is given
" A set of X and Y scores has b = 4, Mx = 12, and My = 51. What is the y-intercept (a) for the regression equation? O 9.75 17.36 3.00 8.25 "--
A triangular prism is 12 meters long and has a triangular face with a base of 8 meters and a height of 9 meters. What is the volume of the triangular prism?
The volume of the triangular prism is 216 cubic meters.
To find the volume of a triangular prism, we need to multiply the area of the triangular base by the length of the prism.
Calculate the area of the triangular base.
The base of the triangular face is given as 8 meters, and the height is 9 meters. We can use the formula for the area of a triangle: area = (1/2) * base * height.
Plugging in the values, we get:
Area = (1/2) * 8 meters * 9 meters = 36 square meters.
Multiply the area of the base by the length of the prism.
The length of the prism is given as 12 meters.
Volume = area of base * length of prism = 36 square meters * 12 meters = 432 cubic meters.
Adjust for the shape of the prism.
Since the prism is a triangular prism, we need to divide the volume by 2.
Adjusted Volume = (1/2) * 432 cubic meters = 216 cubic meters.
Therefore, the volume of the triangular prism is 216 cubic meters.
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the quotient of 45 and 5 form algebraic expression to verbal expression
Find some means. Suppose that X is a random variable with mean 15 and standard deviation 5. Also suppose that Y is a random variable with mean 35 and standard deviation 8. Find the mean of the random variable Z for each of the following cases. Be sure to show your work. (a) Z=20−3X (b) Z=13X−30 (c) Z=X−Y (d) Z=−7Y+4X
The z-score for P(? ≤ z ≤ ?) = 0.60 is approximately 0.25.
The z-score for P(z ≥ ?) = 0.30 is approximately -0.52.
How to find the Z score
P(Z ≤ z) = 0.60
We can use a standard normal distribution table or a calculator to find that the z-score corresponding to a cumulative probability of 0.60 is approximately 0.25.
Therefore, the z-score for P(? ≤ z ≤ ?) = 0.60 is approximately 0.25.
For the second question:
We want to find the z-score such that the area under the standard normal distribution curve to the right of z is 0.30. In other words:
P(Z ≥ z) = 0.30
Using a standard normal distribution table or calculator, we can find that the z-score corresponding to a cumulative probability of 0.30 is approximately -0.52 (since we want the area to the right of z, we take the negative of the z-score).
Therefore, the z-score for P(z ≥ ?) = 0.30 is approximately -0.52.
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Are y'all mad or happy about the time change in some places
Answer:
Not happy with it! :)
Step-by-step explanation:
I dont get the point. its a pain to change the time on the clock and i hate getting up early!! Not a early lol
Have an amazing day!!
PLEASE RATE!
what is 8 1/5 as a improper fraction
Answer:
41/5
Step-by-step explanation:
So the answer is that 8 1/5 as a decimal is 8.2.
We convert it to an improper fraction which, in this case, is 41/5 and then we divide the new numerator (41) by the denominator to get our answer.
A triangle has two sides of lengths 6 and 9. What value could the length of
the third side be? Check all that apply.
OA. 7
B. 2
C. 4
OD. 15
□E. 10
O F. 12
SUBMIT
B. 2 and OD. 15 are not possible lengths for the third side of the triangle.
To determine the possible values for the length of the third side of a triangle, we need to consider the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
Given that two sides have lengths 6 and 9, we can analyze the possibilities:
6 + 9 > x
x > 15 - The sum of the two known sides is greater than any possible third side.
6 + x > 9
x > 3 - The length of the unknown side must be greater than the difference between the two known sides.
9 + x > 6
x > -3 - Since the length of a side cannot be negative, this inequality is always satisfied.
Based on the analysis, the possible values for the length of the third side are:
A. 7
C. 4
□E. 10
O F. 12
B. 2 and OD. 15 are not possible lengths for the third side of the triangle.
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