The surface area of the larger sphere is 64π cm². therefore option A. 64π cm² is correct.
To find the surface area of the larger sphere, given the volumes of two spheres and the surface area of the smaller sphere, follow these steps:
1. Determine the ratio of the volumes of the spheres:
Volume ratio = Volume of larger sphere / Volume of smaller sphere
= (64π cm³) / (8π cm³)
= 8
2. Find the cube root of the volume ratio to get the ratio of their radii:
Radii ratio = cube root of volume ratio = cube root of 8 = 2
3. Since the surface area of a sphere is proportional to the square of its radius, find the ratio of the surface areas by
squaring the radii ratio:
Surface area ratio = (Radii ratio)² = (2)² = 4
4. Finally, multiply the surface area of the smaller sphere by the surface area ratio to get the surface area of the larger
sphere:
Surface area of larger sphere = Surface area of smaller sphere × Surface area ratio
= 16π cm² × 4
= 64π cm²
So, the surface area of the larger sphere is 64π cm² (Option A).
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This table shows the average cost of a gallon of gas each year for the past 8 years.
Use the data from the table to create a scatter plot.
Whoever answers this with a screenshot of the answer gets 100 pts + brainliest
The scatter plot for the table shows the average cost of a gallon of gas each year for the past 8 years is attached.
What is a scatter plot and why is it important?A scatter plot is a graphical representation of a collection of data points in a two-dimensional coordinate system. It is important because it allows us to visualize the relationship between two variables and identify any patterns or trends in the data, which can help us to make informed decisions and predictions.
Based on the given data, we can deduce that the average cost of gas remained relatively stable between years 1 to 2, and then increased from years 2 to 5. However, there was a sharp decrease in the average cost of gas in year 6, and it remained constant in years 7 and 8.
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a jury has 12 jurors. a vote of at least 10 of 12 for guilty is necessary for a defendant to be convicted of a crime. assume that each juror acts independently of the others and that the probability that anyone juror makes the correct decision on a defendant is .80. if the defendant is guilty, what is the probability that the jury makes the correct decision? round your answer to 4 decimal places.If the defendant is guilty, the probability that the jury makes the correct decision is ____
The probability that the jury makes the correct decision is 0.9999
This is a binomial distribution problem where the event of interest is a juror making a correct decision (voting guilty) and the number of trials is 12 (the number of jurors).
The probability of a single juror making the correct decision is 0.80. Therefore, the probability of a single juror making the incorrect decision (voting not guilty) is 1 - 0.80 = 0.20.
To calculate the probability that at least 10 out of 12 jurors make the correct decision (voting guilty) if the defendant is guilty, we can use the binomial distribution formula:
P(X ≥ 10) = 1 - P(X < 10)
where X is the number of jurors who make the correct decision.
Since the probability of a single juror making the correct decision is 0.80, we can use the binomial probability formula to calculate the probability of X jurors making the correct decision
P(X = x) = (12 choose x) * 0.80^x * 0.20^(12-x)
where (12 choose x) is the number of ways to choose x jurors out of 12.
Using this formula, we can calculate the probability of fewer than 10 jurors making the correct decision:
P(X < 10) = P(X = 0) + P(X = 1) + ... + P(X = 9)
We can use a calculator or software to calculate this probability:
P(X < 10) = 0.00000436
Therefore, the probability of at least 10 out of 12 jurors making the correct decision if the defendant is guilty is:
P(X ≥ 10) = 1 - P(X < 10) = 1 - 0.00000436 = 0.99999564
Rounding to four decimal places, the probability is 0.9999.
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1
1
About of a fruit punch is pineapple juice. About of the punch is orange juice. Write and solve an equation to find the
10
fraction of the punch that is pineapple juice or orange juice.
Select the correct equation below, and fill in the answer box to complete your choice.
An equation to find the fraction of punch that is either pineapple juice or orange juice is 1/6 + 1/9 = 5/8.
What is a fraction?In Mathematics, a fraction simply refers to a numerical quantity (numeral) which is not expressed as a whole number. This ultimately implies that, a fraction is simply a part of a whole number.
Based on the information provided about the pineapple juice and orange juice, an equation that can be used for determining the fraction of punch that is either pineapple juice or orange juice is as follows;
Fraction = 1/6 + 1/9
Fraction = 3/18 + 2/18
Fraction = 5/18
In this context, we can reasonably infer and logically deduce that exactly 5/18 of the punch is either pineapple juice or orange juice.
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Complete Question:
About 1/6 of a fruit punch is pineapple juice. About 1/9 of the punch is orange juice. Write and solve an equation to find the fraction of the punch that is pineapple juice or orange juice.
# 10: The circle graph below displays the percentage of
students who choose various drinks at a cafeteria. If 110
students chose milk, how many students did not choose
soda?
Percentage of Students Who Chose
Various Drinks
35%
14%
229
2996
Mik
Water
-Tea
Soda
After answering the provided question, we can conclude that As a result, equation 315 kids did not select soda.
What is equation?An equation in mathematics is a statement that states the equality of two expressions. An equation is made up of two sides that are separated by an algebraic equation (=). For example, the argument "2x + 3 = 9" asserts that the phrase "2x + 3" equals the value "9". The purpose of equation solving is to determine the value or values of the variable(s) that will allow the equation to be true. Equations can be simple or complicated, regular or nonlinear, and include one or more elements. The variable x is raised to the second power in the equation "x2 + 2x - 3 = 0." Lines are utilised in many different areas of mathematics, such as algebra, calculus, and geometry.
According to the circle graph, 14% of pupils preferred soda. As a result, 100% - 14% = 86% of pupils did not select soda.
We know that 35% of students, or 110 kids, chose milk. Hence we may calculate the fraction of pupils that did not drink soda as follows:
35/100 = 110/x
When we solve for x, we get:
x = (110*100)/35 = 314.29
x = 315
As a result, 315 kids did not select soda.
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please help.!!!!!!!!!!!!!!!!!!!!!!!!!!
The expressions are matched as;
5³· 5³ add the exponents
(4x³)⁵. write as the product of the powers
6⁹ ÷ 6⁵. subtract the exponents
(7²)³. multiply the exponents
What are index forms?Index forms are described as those mathematical models that are used to represent numbers too small or large in more convenient forms.
They are represented as variables or numbers that are being raised to an exponent.
Other names for index forms are;
Scientific notationStandard formsThe rules of the index forms are;
Add the exponents when the bases are similar and being mulitiplied.Subtract the exponents when the bases are similar and being divided.From the information given, we have that;
5³· 5³ multiply the exponents
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a newsletter publisher believes that 71% 71 % of their readers own a rolls royce. a testing firm believes this is inaccurate and performs a test to dispute the publisher's claim. after performing a test at the 0.02 0.02 level of significance, the testing firm fails to reject the null hypothesis. what is the conclusion regarding the publisher's claim?
We cannot claim that the newsletter publisher's statement is incorrect. Hence, the conclusion is uncertain.
The newsletter publisher's claim is uncertain after performing a test at the 0.02 level of significance as the testing firm fails to reject the null hypothesis.
In this case, we cannot claim that the publisher's statement is incorrect without additional tests and proof. Here is an explanation of the above statement.
A hypothesis test is conducted to find out whether or not there is sufficient evidence to contradict a hypothesis. In this case, the hypothesis test's null hypothesis claims that the newsletter publisher's statement is correct.
The alternate hypothesis claims that the newsletter publisher's claim is incorrect. As a result, the null hypothesis is represented by [tex]H_0[/tex]:
p = 0.71 (71%) and
the alternate hypothesis is represented by [tex]H_a[/tex]:
p ≠ 0.71 (71%).
Where 'p' denotes the percentage of newsletter readers who own a Rolls Royce.
The test statistic for a sample proportion can be calculated by
z = (p - P) / √(P(1 - P) / n)
Where 'p' denotes the sample proportion,
P denotes the population proportion, and
n denotes the sample size.
A two-tailed test is used because the alternate hypothesis is written as [tex]H_a[/tex]:
p ≠ 0.71 (71%).
At a 0.02 significance level, the test statistic's critical value is ±2.58 (round off) Because the test statistic does not fall in the rejection region, we fail to reject the null hypothesis.
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If all other quantities remain the? same, how does the indicated change affect the width of a confidence? interval?
(a) Increase in the level of confidence
(b) Increase in the sample size
(c) Increase in the population standard deviation
Increase in the level of confidence and increase in the population standard deviation will increase the width of a confidence interval and increasing the sample size will decrease the width of a confidence interval.
(a) Increasing the level of confidence will increase the width of a confidence interval. This is because a higher level of confidence requires a larger margin of error, which in turn increases the width of the interval.
(b) Increasing the sample size will decrease the width of a confidence interval. This is because a larger sample size leads to a more precise estimate of the population parameter, which reduces the amount of uncertainty and therefore narrows the interval.
(c) Increasing the population standard deviation will increase the width of a confidence interval. This is because a larger standard deviation indicates greater variability in the population, which in turn requires a larger margin of error and therefore widens the interval.
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Evaluate the expression: |8| - 2 x |-3| + 4
22
10
42
6
Answer:
6
Step-by-step explanation:
Items 15–16. Refer to the diagram shown.
15. What is m∠EFB?
16. What is AC?
The measure of m∠EFB is 68 degrees and the length of AC is 32 units
Calculating the measure of m∠EFB?From the question, we have the following parameters that can be used in our computation:
The triangle
The sum of angles in a triangle is 180
So, we have
∠EFB = 180 - 90 - 22
∠EFB = 68
Calculating the length of ACBy the congruent theorem, we have
AC = 2 *(6 + 10)
When evaluated, we have
AC = 32
Hence, the length of AC is 32 units
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A town in the shape of a trapezoid
is shown below. If the population of
the town is 28,000 people, find the
number of people per square mile.
14 mi
12 mi
21 mi
16.6 mi
In Linear equation, 121 the number of people per square mile.
What in mathematics is a linear equation?
An algebraic equation with simply a constant and a first-order (linear) component, such as y=mx+b, where m is the slope and b is the y-intercept, is known as a linear equation.
Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables. Equations with variables of power 1 are known as linear equations. One example with only one variable is where ax+b = 0, where a and b are real values and x is the variable.
A = (12 + 21) * 14 * 1/2
= 33 * 14 * 1/2
= 231 mi²
28000 ÷ 231 = 121 people
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Find the perimeter of the shaded region. Round your answer to the nearest hundredth.
The perimeter is about _ units
The perimeter of the shaded region is 22.58 units.
What is perimeter of rectangle?
Perimeter of a rectangle is 2×(Length+Breadth).
Here in this figure we have three part. They are a rectangle and two semicircles.
Length of the rectangle is 13 unit and breadth is 6 unit
So, perimeter of the rectangle part = 2×(length+breadth) = 2×(13+6) = 38 unit
Again, diameter of two semicircles is 6 unit
So, radius of two semicircles will be [tex] \frac{6}{2} = 3 \: unit[/tex]
So, perimeter of one semicircle
[tex] = \pi \: r + 2r \\ = \pi \times 3 + 2 \times 3 \\ = 3\pi + 6[/tex]
Now, perimeter of two semicircles will be
[tex]2 \times (3\pi + 6) = 3(\pi + 2) \: unit[/tex]
If we subtract perimeter of two semicircles from the perimeter of rectangle then we will get perimeter of the shaded portion.
So, required perimeter of shaded region
[tex] = 38 - 3(\pi + 2) = (32 - 3\pi) = 22.58 \: unit[/tex]
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during a 5 day week, there is a 1/2 chance of rain falling on the first day, and every day thereafter there is a 2/3 chance of the same outcome as the previous day (rain or no rain) and 1/3 chance of opposite outcome. what is the probability that there are at least 3 days of rain?
Answer:
Step-by-step explanation:
Depending on the correlations between the days, the answer can be anywhere from 25% (perfect correlation) to 100% (for example, first four days mutually exclusive).
If you assume the days are independent, which may be what you intended to ask but is not actually a good assumption when it comes to the weather, then the probability is 1 - (1-0.25)^5 = 76%
The issue pertains to probability theory, and specifically the calculation of the likelihood of precipitation on a particular day. We need to find the total probability that it rains at least three out of five days, and this would require enumerating and counting all possible outcomes.
Explanation:This is a problem of probability related to weather forecasts, specifically concerned with the chance of rain. The first day has an independent probability of 1/2 (rain or no rain). Thereafter each day's weather depends on the previous day's. If it rained the day before, there's a 2/3 chance it will rain the next day, and 1/3 chance it won't. If it didn't rain, those chances are reversed.
To get the probability that it rains at least three out of five days, we will think about it in terms of the total possible outcomes and the desired outcomes. The problem can be solved by counting the number of ways that we can have 3, 4 or 5 rainy days out of 5 and then multiplying each by the probability of that particular event.
By following these steps, we will arrive at the total probability, which might require a sophisticated understanding of probability theory.
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The function f(x)=x^3 is expanded vertically by a factor of 2, translated down 2 unitsWrite the equation of the transformed function.
To vertically expand a function by a factor of 2, we multiply the function by 2. Thus, the transformed function becomes g(x) = 2f(x) = [tex]2(x^3)[/tex].
To translate a function down 2 units, we subtract 2 from the original function. Thus, the transformed function becomes h(x) = g(x) - 2 = 2[tex](x^3)[/tex] - 2.
So the equation of the transformed function is h(x) = 2[tex](x^3)[/tex] - 2.
Graphically, the transformation of the function f(x) = [tex]x^3[/tex] into h(x) = 2[tex](x^3)[/tex] - 2 means that the graph of h(x) is twice as tall as the graph of f(x) and shifted 2 units downwards. The transformation stretches the function vertically without changing its shape, and then moves it downward by the specified amount.
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Draw a line representing the "rise" and a line representing the "run" of the line. State the slope of the line in simplest form.
Answer:
slope= 1/4
Step-by-step explanation:
AUGH WHAT EVEN IS!!PLEASE HELP
The length of the base of the given parallelogram is 2 feet.
The area of a parallelogram is all the square units that fit inside, measured in square units (cm2, m2, in2, etc.). It is the area surrounded or enclosed by parallelograms in two places. The elements of a parallelogram. Since a rectangle and a parallelogram have the same properties, the area of the rectangle is the same as that of the parallelogram.
Given us the area in sq. feet but height in yards, So let's convert the height in feet instead.
We know, 1 yard = 3 feet
∴ Height = 5 feet.
Now, We know
⇒ Area = Base × Height
⇒ 10 = Base × 5
⇒ Base = 2 feet
Hence, The length of the base of the given parallelogram is 2 feet.
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R(55, -75) W(-15,-40)
Find the slope
Answer:
- 1/2
Step-by-step explanation:
We can use the slope formula to find the slope.
m = ( y2-y1)/(x2-x1)
= ( -40 - -75)/(-15 - 55)
= (-40+75)/( -15-55)
=35/-70
=- 1/2
Answer:
m = -0.5
Step-by-step explanation:
Given that, ( Coordinates of a line )
( 55, - 75 ) ⇒ ( x₁ , y₁ )
( - 15 , - 40 ) ⇒ ( x₂ , y₂ )
The formula to find the slope of a line is:
[tex]\sf m =\frac{y_1-y_2}{x_1-x_2}[/tex]
Let us find it now.
[tex]\sf m =\frac{y_1-y_2}{x_1-x_2} \\\\\sf m =\frac{-75-(-40)}{55-(-15)} \\\\\sf m =\frac{-75+40}{55+15} \\\\\sf m =\frac{-35}{70} \\\\m = -0.5[/tex]
Consider parallelogram QRST below.
Use the information given in the figure to find mZR, m/RSQ, and x.
3x
66°
53°
S
12
R
m/R =
m/RSQ =
X =
X
The answers of following questions are given as follows:- m∠R = 114°
m∠RSQ = 13°
TQ = SR = 3x
What is parallelogram?Quadrilateral which is made up of 2 pairs of parallel sides. The opposite sides are parallel and equal in length in a parallelogram.
Since QRST is a parallelogram, opposite angles are congruent. Therefore, we have:
m∠R = m∠T = 180° - m∠QTS = 180° - 66° = 114°
Also, since QRST is a parallelogram, opposite sides are congruent. Therefore, we have:
SR = TQ = 3x
Finally, we can use the fact that the sum of the angles in a triangle is 180° to find m∠RSQ:
m∠RSQ = 180° - m∠QST - m∠T = 180° - 53° - 114° = 13°
Note that we cannot solve for x since we have only one equation and two unknowns.
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A bird travels 71. 2 kilometers after 2 hours of flying. Complete the equation to represent the number of hours, t, the bird will take to fly d kilometers at this rate
the equation to represent the number of hours, t, the bird will take to fly d kilometers at this rate is t = 2d / 71.2
We can use the formula for distance, rate, and time:
distance = rate x time
We can rearrange this formula to solve for time:
time = distance / rate
If we substitute the given distance of 71.2 km and rate of (71.2 km / 2 hours) into this formula, we can find the time it took the bird to fly 71.2 km:
time = 71.2 km / (71.2 km / 2 hours) = 2 hours
Now, we can use the same formula to find the time it will take the bird to fly d kilometers:
time = d km / (71.2 km / 2 hours) = 2d / 71.2 hours
Therefore, the equation to represent the number of hours, t, the bird will take to fly d kilometers at this rate is t = 2d / 71.2
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Can someone help me solve this please? I’ll give brainliest!
Answer: If it is pythagorean theorem than it is 10
Step-by-step explanation:
8^2+6^2=100
Squareroot of 100 is 10
pq and qr are 2 sides of a regular 12 sided polygon pr is a diagonal of the polygon work out the size of angle prq you must show ur working
The size of the angle PRQ is 300 degrees.
What is congruent?
The term “congruent” means exactly equal shape and size. This shape and size should remain equal, even when we flip, turn, or rotate the shapes.
In a regular 12-sided polygon, each interior angle has a measure of:
(12 - 2) × 180° / 12 = 150°
Since PR is diagonal, it divides the 12-sided polygon into two congruent triangles. Therefore, the angle PQR is half of the angle PRQ.
Let x be the measure of angle PRQ. Then we have:
x + 150° + 150° = 180° (sum of angles in triangle PQR)
Simplifying the equation, we get:
x = 180° - 150° - 150° = -120°
However, since x is an angle in a triangle, it must be positive. Therefore, we take the supplement of x, which is:
180° - x = 180° - (-120°) = 300°
Hence, the size of the angle PRQ is 300 degrees.
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A school needs to buy new notebook and desktop computers for its computer lab. The notebook computers cost $350 each, and the desktop computers cost $375 each. How many total computers would someone buy if they get 10 notebooks and 19 desktop computers? How many total computers would someone buy if they get � n notebooks and � d desktop computers? Total computers, 10 notebooks and 19 desktop computers: Total computers, � n notebooks and � d desktop computers:
1) The total number of computers they would buy if they get 10 notebooks and 19 desktop computers is: 54 computers
2) The total number of computers they would buy if they get n notebooks and d desktop computers is: (350/n) + (375/n)
How to solve Algebraic expressions?The parameters given are:
Cost of notebook Computers = $350
Cost of Desktop desktop = $375
Thus, if they get 10 notebooks and 19 desktop computers, then:
Total number of computers is:
(350/10) + (375/19) = 35 + 19
= 54 computers
(375/19) was approximated to 19 because we must use a whole number and not a decimal.
If they buy n notebooks and d desktop computers, then total computers will be:
(350/n) + (375/n)
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the cost c of a bottle of ketchup was $0.22 in 1966. in 2007, the cost was $1.39. assuming the exponential growth model applies: a. find the exponential growth rate to the nearest tenth of a percent and write the equation. b. find the cost of a bottle of ketchup in 2012.
The exponential growth rate is approximately 3.1% per year, and the equation is C(t) = 0.22 * e^(0.031t). The cost of a bottle of ketchup in 2012 would be approximately $1.72.
To find the exponential growth rate, we use the formula:
r = (ln(P2/P1)) / (t2 - t1)
where P1 is the initial value, P2 is the final value, t1 is the initial time, t2 is the final time, and ln denotes the natural logarithm. Substituting the values we get:
r = (ln(1.39/0.22)) / (2007-1966) = 0.0271 or 2.7% (to the nearest tenth of a percent)
The equation for exponential growth is:
C(t) = C0 * e^(rt)
where C0 is the initial cost and C(t) is the cost at time t. Substituting the values we get:
C(t) = 0.22 * e^(0.0271t)
To find the cost of a bottle of ketchup in 2012, we substitute t = 2012 in the above equation:
C(2012) = 0.22 * e^(0.0271 * 2012) = $1.72 (rounded to the nearest cent)
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The work, W (in joules), done when lifting an object is jointly proportional to the product of the mass, m (in kilograms), of the object and the height, h (in meters), that the object is lifted. The work done when a 100-kilogram object is lifted 1.5 meters above the ground is 2116.8 joules.
The constant of proportionality for the work done when lifting an object is given as follows:
k = 14.78.
What is a proportional relationship?A proportional relationship is a type of relationship between two quantities in which they maintain a constant ratio to each other. This means that if one quantity is multiplied by a certain factor, the other quantity will also be multiplied by the same factor.
The equation that defines the proportional relationship is given as follows:
y = kx.
In which k is the constant of proportionality, representing the increase in the output variable y when the constant variable x is increased by one.
The work, W (in joules), done when lifting an object is jointly proportional to the product of the mass, m (in kilograms), of the object and the height, h (in meters), that the object is lifted, hence the equation is given as follows:
W = khm.
The work done when a 100-kilogram object is lifted 1.5 meters above the ground is 2116.8 joules, the the constant is given as follows:
150k = 2216.8
k = 2216.8/150
k = 14.78.
Missing InformationThe problem asks for the constant of the proportional relationship.
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Which of the following is closest to the circumference of a circle that has a diameter of 8 inches?
Answer: The formula for the circumference of a circle is C = πd, where d is the diameter of the circle.
If the diameter of the circle is 8 inches, then:
C = πd
C = π(8)
C = 8π
Using an approximation of π as 3.14, we can estimate the circumference:
C ≈ 8 × 3.14
C ≈ 25.12
Therefore, the answer closest to the circumference of the circle is 25.12 inches.
Step-by-step explanation:
Find the frequency with the largest amplitude Find the frequency w for which the particular solution to the differential equation dạy dy 2- + dt2 + 2y = eiwt dt has the largest amplitude. You can assume a positive frequency w > 0. Probably the easiest way to do this is to find the particular solution in the form Aeiwt and then minimize the modulus of the denominator of A over all frequencies w. W= number (rtol=0.01, atol=1e-08) ?
The frequency with largest amplitude for the particular solution to the differential equation is w = 0.707 (approximately).
To find the frequency with the largest amplitude, we can assume that the particular solution to the given differential equation is of the form:
y(t) = Aeiwt
Taking the first and second derivatives of y(t), we get:
dy/dt = iwtAeiwt
d2y/dt2 = -w2Aeiwt
Substituting these into the differential equation, we get:
-w2Aeiwt + 2Aeiwt = eiwt
Simplifying, we get:
A = 1 / (1 - 2iw2)
The amplitude of y(t) is given by |A|, which is:
|A| = 1 / |1 - 2iw2|
To find the frequency w for which |A| is largest, we need to minimize the modulus of the denominator of A over all frequencies w. We can do this using numerical optimization methods. So, frequency is 0.707.
Therefore, the frequency with the largest amplitude is w = 0.707 (approximately).
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For the formula = − , what is the value of x when y = 3 and z = 1?
Answer:
The formula is: x = -y + z
We are given that y = 3 and z = 1. Substituting these values in the formula, we get:
x = -y + z
x = -(3) + 1
x = -3 + 1
x = -2
Therefore, when y = 3 and z = 1, the value of x is -2.
Step-by-step explanation:
The given formula is: x = -y + z
We are given that y = 3 and z = 1.
Substitute the values of y and z into the formula.
x = -y + z
x = -(3) + 1
x = -3 + 1
Simplify the expression.
x = -2
Therefore, when y = 3 and z = 1, the value of x is -2.
A pilot of an airplane flying at 12,000 feet sights a water tower. The angle of depression to the base of the tower is 25°. What is the length of the line of sight from the plane to the tower?
Answer: Let's draw a diagram to visualize the situation:
C (water tower)
/|
/ | 25°
12000 / |
/ |
/ |
/ |
/θ | B (plane)
A |
In this diagram, the pilot of the airplane is located at point B and the water tower is located at point C. The angle of depression from the airplane to the base of the tower is 25°. We are asked to find the length of the line of sight from the airplane to the tower, which is the distance AC.
We can use trigonometry to solve for AC. In particular, we can use the tangent function, which relates the opposite side to the adjacent side of a right triangle:
tan(θ) = opposite / adjacent
In this case, the opposite side is BC (the height of the water tower) and the adjacent side is AB (the distance from the airplane to the base of the tower). We can rearrange the equation to solve for AB:
AB = BC / tan(θ)
We know that BC is the height of the water tower, but we don't have that information. However, we can use the fact that the angle of depression is 25° to find BC. The angle of depression is the angle between the horizontal line (which we can assume is the same as the ground level) and the line of sight from the airplane to the base of the tower. Therefore, the angle between the line of sight and the vertical line (which is perpendicular to the ground) is 90° - 25° = 65°. This means that the triangle ABC is a right triangle, with angle θ = 65°.
Now we can use trigonometry again to find BC, using the sine function:
sin(θ) = opposite / hypotenuse
In this case, the opposite side is BC (the height of the water tower) and the hypotenuse is AC (the line of sight from the airplane to the tower). We can rearrange the equation to solve for BC:
BC = sin(θ) x AC
We know that θ = 65° and sin(θ) ≈ 0.9063 (you can use a calculator to find this value). Substituting these values into the equation gives us:
BC = 0.9063 x AC
Now we can substitute this expression for BC into the equation we derived earlier:
AB = BC / tan(θ) = (0.9063 x AC) / tan(65°)
We can simplify this expression by noting that tan(65°) ≈ 2.1445 (you can use a calculator to find this value). Substituting this value gives us:
AB = (0.9063 x AC) / 2.1445
Multiplying both sides by 2.1445 gives us:
2.1445 x AB = 0.9063 x AC
Dividing both sides by 0.9063 gives us:
AC = (2.1445 x AB) / 0.9063
We know that AB is the altitude of the airplane, which is given as 12,000 feet. Substituting this value gives us:
AC = (2.1445 x 12,000) / 0.9063 ≈ 28,406 feet
Therefore, the length of the line of sight from the airplane to the water tower is approximately 28,406 feet.
Step-by-step explanation:
The larger leg of a right triangle is 3 cm longer than its smaller leg. The hypotenuse is 6 cm longer than the? smaller leg. How many centimeters long is the smaller leg
Answer:
3cm or 1.5
Step-by-step explanation:
Long leg = radical of 3
Short leg = 1
Hypotenuse= 2
On the grid draw the graph of y=2x-3 for values of x from -2 to 4
A graph of the equation y = 2x - 3 is shown in the image attached below.
How to graph the given linear equation?In order to to graph the solution to the given linear equation on a coordinate plane, we would use an online graphing calculator to plot the given linear equation and then take note of the point that lie on it;
y = 2x - 3
In this scenario and exercise, we would use an online graphing calculator to plot the given linear equation as shown in the graph attached below.
Based on the graph shown in the image attached below, we can reasonably infer and logically deduce that the domain for this linear equation is -2 < x < 4.
Read more on solution here: https://brainly.com/question/29283759
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The graph of h(x) = -log(x + 5).
-6
d
h(x)
9
7
6
5
4
3
2
1
3 -2 -1 0
-2
دی
-4
-5
-6
1
2
3 4 5 6
What are the intercepts and asymptote of h(x)? Explain how to find these using the graph. Please help
Answer:
The function h(x) = -log(x + 5) has a vertical asymptote at x = -5, since the logarithm of a non-positive number is undefined. To find the intercepts of this function, we can set h(x) equal to zero and solve for x:
h(x) = 0
-log(x + 5) = 0
x + 5 = 1
x = -4
So the function has an x-intercept at (-4, 0). To find the y-intercept, we can set x equal to zero and evaluate h(x):
h(0) = -log(0 + 5) = -log(5)
So the function has a y-intercept at (0, -log(5)).
To verify these intercepts using the graph, we can look for the points where the graph intersects the x and y axes. The x intercept is where the graph crosses the x-axis, which in this case is at x = -4. The y-intercept is where the graph crosses the y-axis, which is at y = -log(5) or approximately -1.609. The vertical asymptote is the vertical line where the graph approaches but never touches. From the graph, we can see that this occurs at x = -5.
It is important to note that when graphing logarithmic functions, it is recommended to plot a few points, including the intercepts and vertical asymptote, to help visualize the graph accurately.