Answer:
64
Step-by-step explanation:
A square has equal side measurements meaning that each side is 8. To find the area, multiply the length by the width which would be 8 * 8 = 64.
Answer:
64
Step-by-step explanation:
since area of a square is length x length,
area of office is 8x8=64
Use the relative frequency method to estimate the probability. Round your answer to 2 decimal
places when necessary.
In a poll, respondents were asked whether they were planning to vote in the local election. 315
respondents indicated that they were planning to vote and 217 said that they were not. What is the
probability that the next respondent questioned will indicate that they are planning to vote?
Select one:
O a. 0.41
O b. 0.59
O c. 1.45
O d. 0.5
The probability that the next respondent questioned will indicate that they are planning to vote is 0.59.
Given that, 315 respondents indicated that they were planning to vote and 217 said that they were not.
What is the probability?Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
We know that, probability of an event = Number of favourable outcomes/Total number of outcomes
Now, probability of voting is
P(voting)=315(315+217)
= 315/532
= 0.59
Therefore, the probability that the next respondent questioned will indicate that they are planning to vote is 0.59.
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|x-4|=7x+12 solve for x
Step-by-step explanation:
................ N.....
determine the maximum and minimum values of the function, at what values of x are they achieved? (without using a derivative)
\(y=\sin^3x-\sin^6x\)
The maximum and minimum values of the function is solved
Given data ,
We can find the maximum and minimum values of the function by taking the derivative of y with respect to x and setting it equal to zero.
y = (sin x)³ - (sin x)⁶
y' = 3(sin x)² cos x - 6(sin x)⁵ cos x
Setting y' equal to zero:
0 = 3(sin x)² cos x - 6(sin x)⁵ cos x
0 = 3(sin x)² cos x (1 - 2(sin x)³)
sin x = 0 or (sin x)³ = 1/2
If sin x = 0, then x = kπ for any integer k.
If (sin x)³ = 1/2, then sin x = (1/2)^(1/3) ≈ 0.866. This occurs when x = π/3 + 2kπ/3 or x = 5π/3 + 2kπ/3 for any integer k.
To determine whether these values correspond to a maximum or minimum, we can use the second derivative test.
y'' = 6(sin x)³ cos² x - 15(sin x)⁴ cos² x - 9(sin x)⁴ cos x + 6(sin x)⁵ cos x
y'' = 3(sin x)³ cos x (4(sin x)² - 5(sin x)² - 3cos x + 2)
For x = kπ, y'' = 3(0)(-3cos(kπ) + 2) = 6 or -6, depending on the parity of k. This means that these points correspond to a maximum or minimum, respectively.
For x = π/3 + 2kπ/3 or x = 5π/3 + 2kπ/3, y'' = 3(1/2)^(5/3) cos x (4(1/2)^(2/3) - 5(1/2)^(1/3) - 3cos x + 2). This expression is positive for x = π/3 + 2kπ/3 and negative for x = 5π/3 + 2kπ/3, which means that the former correspond to a minimum and the latter to a maximum.
Hence , the maximum value of the function is y = 27/64, which occurs at x = 5π/3 + 2kπ/3, and the minimum value is y = -1/64, which occurs at x = π/3 + 2kπ/3
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Answer:
maximum: 0.25minimum: -2Step-by-step explanation:
You want the maximum and minimum values of the function ...
y = sin³(x) -sin⁶(x)
SolutionWhen we substitute sin³(x) = z, we have the quadratic expression ...
y = z -z² . . . . . a quadratic function
Adding and subtracting 1/4, we can put this in vertex form:
y = -(z -1/2)² +1/4
MaximumThis version of the function describes a parabola that opens downward and has a vertex at (z, y) = (1/2, 1/4). The y-value of the vertex represents the maximum value of the function.
The maximum value of y is 1/4.
MinimumThe sine function is a continuous function with a range of [-1, 1]. Then z will be a continuous function of x, with a similar range. We already know that y describes a function of z that is a parabola opening downward with a line of symmetry at z = 1/2. This means the most negative value of y will be found at z = -1 (the value of z farthest from the line of symmetry). That value of y is ...
y = (-1) -(-1)² = -1 -1 = -2
The minimum value of y is -2.
__
Additional comment
The range of y is confirmed by a graphing calculator.
<95141404393>
What is the end behavior for f(x)=x5?
A trucker wanted to track how long it took to reach Bismarck. When she started out, her clock
read 7:00AM. When she refueled, the clock read 8:00AM. After reaching Bismarck, the clock read
10:00AM. How many hours did it take this trucker to reach Bismarck?
Answer:
Below
Step-by-step explanation:
From 7 to 10 AM is THREE hours (if the times are all on the same day)
pls help!!
In the xy-plane, the point (2,10) lies on the graph of the
function f(x) = 2x2 + bx - 8. What is the value of b?
(answer choices in the image attached)
In the xy-plane, the point (2,10) lies on the graph of the function f(x) = 2x^2 + bx - 8. The value of b is 4.
What is linear equation?
A linear equation is an equation that describes a straight line in the form y = mx + b, where x and y are variables, m is the slope of the line, and b is the y-intercept. The slope of a line is the measure of how steeply the line rises or falls, and the y-intercept is the point at which the line crosses the y-axis.
In a two-dimensional coordinate system, a linear equation represents a straight line that can be graphed by plotting pairs of x and y values that satisfy the equation. The line passes through all points that satisfy the equation and no others.
We can find the value of b by using the point-slope form of a linear equation, which states that the equation of a line with slope m that passes through the point (x1, y1) is given by y - y1 = m(x - x1).
In this case, the slope of the line is equal to 4x, and the point (x1, y1) is (2, 10), so we have:
y - 10 = 4x * (x - 2)
Expanding the right-hand side, we get:
y - 10 = 4x^2 - 8x
Matching this equation with the given function f(x) = 2x^2 + bx - 8, we see that b = 4.
So the value of b is 4.
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35. Two bags contain discs.
Bag A contains 12 discs.
5 of the discs are red, 6 are blue and 1 is
white.
Bag B contains 25 discs.
n of the discs are red and the rest are blue.
James takes at random a disc from Bag A.
Lucy takes at random a disc from Bag B.
Given that the probability that James and
Lucy both take a red disc is
15
2
(i) find the value of n, the number of red discs
in Bag B.
(ii) Hence calculate the probability that James
and Lucy take discs of different colours.
Answer:35. Two bags contain discs.
Bag A contains 12 discs.
5 of the discs are red, 6 are blue and 1 is
white.
Bag B contains 25 discs.
n of the discs are red and the rest are blue.
James takes at random a disc from Bag A.
Lucy takes at random a disc from Bag B.
Given that the probability that James and
Lucy both take a red disc is
15
2
(i) find the value of n, the number of red discs
in Bag B.
(ii) Hence calculate the probability that James
and Lucy take discs of different colours.
Step-by-step explanation:
There are 10 girls in a class. This is 2/5 of the number of all students in the class. How many students are in this class?
Ricky found some tables that could seat 12 people at them. David thought he could squeeze in 9 people at his tables.
They decided to divide up the guests. Ricky would place tables on the left side and David would place tables on the right
side. What is the fewest number of people that can be seated on a side if both sides have the same number of people?
Answer:
iuhiobh8ubp8
Step-by-step explanation:
Find the mean, median mode(s), range, standard deviation, and variance of the data: 21, 15, 16, 25, 13, 18 5, 3, 2, 6, 5, 2, 5 Eight car sales men sold cars at a dealership. Here is the distribution of cars sold last month: 6, 45, 52, 43, 48, 41, 50, and 48. Find the mean, median mode(s), range, standard deviation, and variance of the data: Which measure of central tendency best represents the data
Answer:
Kindly check explanation
Step-by-step explanation:
Given tbe data :
21, 15, 16, 25, 13, 18 5, 3, 2, 6, 5, 2, 5
Ordered data : 2, 2, 3, 5, 5, 5, 6, 13, 15, 16, 18, 21, 25
Mean, m = Σx /n
Σx = 136
n = sample size = 13
m = Σx / n = 136 / 13 = 10.46
Mode, = 5 (most frequently occurring with frequency of 5)
Median = 1/2(n+1)th term = 1/2(14) = 7th term = 6
Range = maximum - minimum = [25 - 2] = 23
Variance : (V) = Σ(x - m)²/n-1
V = [(2-10.46)^2 + (2-10.46)^2 + (3-10.46)^2 + (5-10.46)^2 + (5-10.46)^2 + (5-10.46)^2 + (6-10.46)^2 + (13-10.46)^2 + (15-10.46)^2 + (16-10.46)^2 + (18-10.46)^2 + (21-10.46)^2 + (25-10.46)^2] / (13-1)
= 745.2308 / 12
= 62.10
Standard deviation = sqrt(V) = sqrt(62.10) = 7.88
2.)
X : 6, 45, 52, 43, 48, 41, 50, 48
Reordered data, X: 6, 41, 43, 45, 48, 48, 50, 52
Mean, m = Σx /n
Σx = 333
n = sample size = 8
m = Σx / n = 333 / 8 = 41.625
Median = 1/2 (n+1)th term = 46.5
Range = 52 - 6 = 46
Mode = 48 (highest occurring frequency of 2)
Variance (V) = Σ(x - m)²/n-1
V = [(6-41.625)^2 + (41-41.625)^2 + (43-41.625)^2 + (45-41.625)^2 + (48-41.626)^2 + (48-41.625)^2 + (50-41.625)^2 + (52-41.625)^2] / 5
= 1541.862251 / 7
= 220.27
Standard deviation = sqrt(Variance)
Standard deviation = sqrt(220.26603)
Standard deviation = 14.84
The median
The volume of a cube depends on the length of its sides. This can be written
in function notation as v(s). What is the best interpretation of v(4) = 64?
A. 4 sides of the cube have a total length of 64 feet.
B. A cube with side lengths of 4 feet has a volume of 64 cubic feet.
C. 4 of these cubes will have a total volume of 64 cubic feet.
OD. A cube with a volume of 4 cubic feet has side lengths of 64 feet.
Answer:
C is the correct answer.
HELP NOW PLZ U GET POINTS!!!
Answer:
3
is the answer
Answer:
3
Step-by-step explanation:
Answer the following questions using what you've learned from this unit. Write your
answers in the space provided. Be sure to show all work.
CLASSIFY and MEASURE TRIANGLES
1. Find angle measures and use angles to classify triangles.
Part I: Find the missing angle measure in each triangle. Show your work.
(3 points, 1 point each)
AAN
50"
В
A
mC
m B
mA
Answer:
50"
В
A
mC
m B
mA
Step-by-step explanation:
1-cos(6x)=___?
A. 3sin(2x)
B. 2sin^2(3x)
C. 3cos(2x)
D. 2cos^2(3x)
The solution to 1 - cos(6x) is 2sin²(x).
Hence, option B) 2sin²(x) is the correct answer.
What is solution to 1 - cos(6x)?Given that; 1 - cos(6x) = ?
First, we rewrite using trig identity
1 - cos(2 × 3x)
Using the double angle identity, { cos2(x) = 1 - 2sin²(x) }
1 - ( 1 - 2sin²(x) )
Eliminate the parentheses
1 - 1 + 2sin²(x)
2sin²(x)
The solution to 1 - cos(6x) is 2sin²(x).
Hence, option B) 2sin²(x) is the correct answer.
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what is the answer for this -6+x=-11
Answer:
x = -5
Step-by-step explanation:
-6 + x = -11
x = -11 + 6
x = -5
Answer:
x=17
Step-by-step explanation:
17+ -6= 11
pls mark brainlest for real ('>')
Determine whether or not the distribution is a discrete probability distribution and select the reason why or why not. x −4 −3 −2 P(X=x) 0.55 0.39 0.06 Answer Keyboard Shortcuts First, decide whether the distribution is a discrete probability distribution, then select the reason for making this decision. Decide Reason
Answer:
x −4 −3 −2
P(X=x) 0.55 0.39 0.06
Step-by-step explanation:
A can of soda is placed inside a cooler. As the soda cools, its temperature T(x) in degrees Celsius is given by the following function, where x is the number of minutes since the can was placed in the cooler.
T(x)=-5+27e^-0.03x
Find the initial temperature of the soda and its temperature after 20 minutes, Round your answers to the nearest degree as necessary.
initial temperature:
temperature after 20 minutes:
The initial temperature of the soda is 22 degrees Celsius, and its temperature after 20 minutes is approximately 10 degrees Celsius.
To find the initial temperature of the soda, we need to evaluate the temperature function T(x) at x = 0.
T(x) = -5 + 27e^(-0.03x)
T(0) = -5 + 27e^(-0.03(0))
T(0) = -5 + 27e^0
Since any number raised to the power of 0 is 1, we have:
T(0) = -5 + 27(1)
T(0) = -5 + 27
T(0) = 22
Therefore, the initial temperature of the soda is 22 degrees Celsius.
To find the temperature of the soda after 20 minutes, we evaluate the temperature function at x = 20.
T(x) = -5 + 27e^(-0.03x)
T(20) = -5 + 27e^(-0.03(20))
T(20) = -5 + 27e^(-0.6)
Using a calculator, we can compute e^(-0.6) ≈ 0.5488.
T(20) = -5 + 27(0.5488)
T(20) = -5 + 14.8152
T(20) ≈ 9.8152
Therefore, the temperature of the soda after 20 minutes is approximately 10 degrees Celsius (rounded to the nearest degree).
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Miguel bought 8 equally priced pens for $3.84.
How much will 15 of these pens cost?
$10.42
$7.20
$5.89
$2.05
Answer:
For 15 pens, the cost is $7.2Step-by-step explanation:
We know that:
8 pens = $3.84Work:
8 pens = $3.84Divide the RHS:
=> 1 pen = 3.84/8=> 1 pen = 0.48Multiply the RHS:
=> 15 pens = 0.48 x 1=> 15 pens = $7.2Hence, for 15 pens, the cost is $7.2
Hoped this helped.
\(BrainiacUser1357\)
The wavelength of yellow light in a spectrum is about 0.00002 inches. Which number best approximates this length as a power of 10? O A. 2x 10-5 O B. 2 x 105 O C. -2x 105 O D. 2 x 10-4 SUBMIT help me please fast
Answer:
A
Step-by-step explanation:
You have to move the decimal 5 places to the left to get 2
Consider the polynomial
(4mn^2n - 2mn + 6) + (6mn^2 - 1) - (mn^2 - 2 + 9mn)
Combine all like terms and enter the coefficients for each term into the blanks below
The required coefficients are:4, -1, -11, and 7.
Coefficients refer to the numerical values that are assigned to variables in mathematical equations, models, or formulas. They indicate the relative importance or contribution of each variable in the equation. Coefficients are used to determine the relationship between variables and are often estimated through statistical analysis or optimization techniques.
In algebraic equations, coefficients are the numbers multiplied by variables. For example, in the equation 2x + 3y = 5, the coefficients are 2 and 3.
In statistical models, such as linear regression, coefficients represent the slopes or weights assigned to the predictor variables. These coefficients indicate how much the response variable is expected to change for a unit change in the corresponding predictor variable, assuming all other variables are held constant.
We need to consider the polynomial:
(4mn^2n - 2mn + 6) + (6mn^2 - 1) - (mn^2 - 2 + 9mn)
To combine the like terms and find the coefficients of each term, we can write the polynomial in the following form:
4mn^2n - 2mn + 6 + 6mn^2 - 1 - mn^2 + 2 - 9mn
Taking the coefficients of the terms with "mn^2"4mn^2n - mn^2
Taking the coefficients of the terms with "mn"-2mn - 9mn = -11mn
Taking the coefficients of the constant terms6 + 2 - 1 = 7
Therefore, the required coefficients are:4, -1, -11, and 7.
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if the selling price for a shirt is $39.98 and the tax rate is 4.5% what is the sales tax
Answer:
8.25 % I got this answer right.
Evaluate each indefinite integral. SHOW STEPS
1. integrate 75x ^ 4 * cos(5x ^ 5 - 3) dx
Integral by substitution
2. integrate 3cos u du
Isolate the coefficient
3 * integrate cos u du
Evaluate the integral
4. 3sin u
Simplify and add the C
= 3sin(5x ^ 5 - 3) + C
Answer
3sin(5x ^ 5 - 3) + C
hope this will help u
please mark me as a brainliest
Answer:
\(3sin(5x^{5} -3) + C\)
Step-by-step explanation:
\(\frac{d}{dx}[sin (ax^{n}+b)] = [anx^{n-1}cos(ax^{n} + b)]\)
a and b are constants
∴\(\frac{d}{dy} sin(5x^{5} -3) = [(5)(5)x^{5-1}-0] cos(5x^{5} -3)\)
= \(25x^{4} cos(5x^{5} -3)\)
\(\int\ {75x^{4}cos(5x^{5} -3)} \, dx\)
Rewriting the above by applying algebraic manipulation:
\(\int\ (3)(25){x^{4}cos(5x^{4} -3)} \, dx\)
=\(3[\int\ 25{x^{4}cos(5x^{5} -3)} \, dx]\)
= \(3sin(5x^{5} - 3) + C\)
C is a constant, which is added to the above integration because there are no limits set. In other words, this is an indefinite integral.
area of rhombus whose diagonals are 5cm and 8 cm
Answer:
20 cm^2
Step-by-step explanation:
A = 1/2 * d1 * d2 = 1/2 * 8 * 5 = 1/2 * 40 = 20cm^2
What is the absolute value of -8.35
Answer:
8.35
Step-by-step explanation:
To get absolute value, just make it the opposite
Answer: |-8.35| = 8.35
Step-by-step explanation: |-8.35| = 8.35
Which statement is true about the graphed function
Categorize the graph as linear increasing, linear decreasing, exponential growth, or exponential decay. A. Linear increasing B. Linear decreasing C. Exponential growth D. Exponential decay
The graph in this problem is characterized as follows:
C. Exponential growth.
How to characterize the graph?First we must look at the format of the graph, which is a curve with an asymptote and not a line, meaning that it represents an exponential function.
Then we observe that the function is increasing, hence it represents an exponential growth function.
Missing InformationThe problem is given by the image presented at the end of the answer.
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Drawing a number divisible by 3 then drawing a 1
Answer:
Step-by-step explanation:
The probability of drawing a number that is divisible by 3 is 1/3, since there are 3 numbers (3, 6, and 9) out of the 9 possible numbers (1, 2, 3, 4, 5, 6, 7, 8, and 9) that are divisible by 3.
The probability of drawing a 1 after drawing a number that is divisible by 3 is 1/10, since there is only one 1 among the 10 possible digits (0-9) that could be drawn after the first number.
To find the probability of both events happening together (drawing a number divisible by 3 and then drawing a 1), we need to multiply the probability of the first event by the probability of the second event. Therefore, the probability of drawing a number divisible by 3 and then drawing a 1 is:
(1/3) x (1/10) = 1/30
So the probability of drawing a number divisible by 3 and then drawing a 1 is 1/30, or approximately 0.0333, or about 3.33%
Answer:
If I understand this correctly you can draw a 9 and then draw the one if I'm wrong just delete this
Step-by-step explanation:
ASAP PLEASE I NEED HELP explain to me also because i dont understand Thank you!
both questions 7 &8
Answer:
For 7 I think A- ( I hope its right-) and 8 is D. - . <:)))))
Step-by-step explanation:
The perimeter of a pool is 150 m. the rectangle at the right is a scale drawing of the pool. The length of each square on the grid represents 1 cm. draw another scale drawing of the pool using the scale 25 m to 2 cm. Explain why your drawing is accurate.
The dimensions of the another rectangle is 2 cm and 4 cm.
According to the statement
We have to find that the perimeter of another rectangle.
So, For this purpose, we know that the
The perimeter of a shape is defined as the total length of its boundary.
From the given information:
The perimeter of a pool is 150 m. the rectangle at the right is a scale drawing of the pool. The length of each square on the grid represents 1 cm. draw another scale drawing of the pool using the scale 25 m to 2 cm.
Then
From the given rectangle,
Length of the rectangle = 5 cm
Width of the rectangle = 10 cm
Ratio of length : width = 1 : 2
Perimeter of the rectangle = 2(l + b)= 150 cm
l + b = 75 -----(1)
Since, l : b = 1 : 2
l/b = 1/2
b = 2l ------(2)
From equations (1) and (2),
l + 2l = 75
3l = 75
l = 25 m
Width 'b' = 2(25) = 50 m
Now we've to draw a rectangle with a scale = 25 : 2
Therefore, multiplier factor = 25/l = 25/2
l = 2 cm
Similarly,
50/w = 25/2
w = 4 cm
Now we are able to draw a rectangle with length = 2 cm and width = 4 cm.
So, The dimensions of the another rectangle is 2 cm and 4 cm.
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Please help thank you all so much
The domain of the composite functions:
a). (f + g)(-2) = 23
b). (f - g) (-2) = 1
c). f(x) - g(x) = x² - 5x - 13
What is composite function?A function is composite when the co- domain of the first mapping is the domain of the second mapping
Given the functions f(x) = x² - 4x and g(x) = x + 13, we shall evaluate the domains of the functions as follows:
a). (f + g)(-2) = (-2)² - 4(-2) + (-2) + 13
(f + g)(-2) = 4 + 8 - 2 + 13
(f + g)(-2) = 23
b). (f - g) (-2) = (-2)² - 4(-2) - (-2) - 13
(f - g)(-2) = 4 + 8 + 2 - 13
(f - g) (-2) = 1
c). f(x) - g(x) = x² - 4x - x - 13
f(x) - g(x) = x² - 5x - 13
Therefore, the domain of the composite functions:
a). (f + g)(-2) = 23
b). (f - g) (-2) = 1
c). f(x) - g(x) = x² - 5x - 13
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