The sand is leaving the bin at a rate of dV/dt = 588π cm³/s.
How to obtain the volume?The volume of a cone of radius r and height h is given by the equation presented as follows:
V = πr²h/3.
Applying implicit differentiation, the rate of change is given as follows:
dV/dt = 2πrh/3 dr/dt + πr²/3 dh/dt.
As the radius does not change, we have that:
dV/dt = πr²/3 dh/dt.
The parameters for this problem are given as follows:
r = 42 cm, h = 14 cm, dh/dt = 3 cm/s.
Hence the rate of change is given as follows:
dV/dt = π x 42 x 14 x 3/3
dV/dt = 588π cm³/s.
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One carton of milk contains 128 ounces Sara's son drinks 4 ounces with every meal. How many 4-ounce servings will be in a carton of milk?
Answer: 32
Step-by-step explanation:
From the question, we are informed that one carton of milk contains 128 ounces and that Sara's son drinks 4 ounces with every meal.
The number of 4-ounce servings that will be in a carton of milk will be:
= 128 / 4
= 32
Please help with this one I will give brainliest and points thank you!
Answer:
minimum=31
maximum=74
median=52
first quartile=¼×9=2.25. =47
third quartile=¾×9=6.75 =70
explanation
hi use the example above to workout.
11. Gael wants to build a bike ramp
such that mzB is less than 50°.
His plan is shown below. Will it
work? Explain.
No, the plan will not work because tan B = 8/5; B ≈ 58°
How to use trigonometric ratios?There are three primary trigonometric ratios for a right angle triangle and they are:
sin x = opposite/hypotenuse
cos x = adjacent/hypotenuse
tan x = opposite/adjacent
To get angle B, we will make use of trigonometric ratios to get:
tan B = 8/5
tan B = 1.6
B = tan⁻¹1.6
B = 58°
From the ramp, we can see that the angle is greater than what Gael wants to build and as such we can say it will not work.
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Choose an expression that is equivalent to negative four raised to the fourth power divided by negative four raised to the second power.
negative four raised to the second power divided by negative four raised to the fourth power
negative four raised to the fifth power divided by negative four
negative four raised to the sixth power divided by negative four raised to the fourth power
negative four divided by negative four raised to the fifth power
Answer:
C
Step-by-step explanation:
negative four raised to the sixth power divided by negative four raised to the fourth power
because negative four raised to the fourth power divided by negative four raised to the second power = negative four raised to the second power
negative four raised to the sixth power divided by negative four raised to the fourth power also = negative four raised to the second power
The answer is A: negative four raised to the second power divided by negative four raised to the fourth power. This is obtained by applying the rules of exponents, specifically, when dividing with the same base, subtract the exponents.
Explanation:This question pertains to exponents division rules. According to the rule of Power of a Power in exponents, when you divide expressions with the same base, you subtract the exponents. So if you have negative four raised to the fourth power (-4⁴) and you want to divide it by negative four raised to the second power (-4²), you subtract 2 from 4 to get an exponent of 2. This results in a negative four raised to the second power (-4²). So, the correct option from the given choices in your question is A: negative four raised to the second power divided by negative four raised to the fourth power.
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For each of the following, find the constant c so that p(x) satisfies the condition of being a probability mass function(pmf) of one random variable X. (a) p(x) = c(ſ)", x = 1, 2, 3, ..., zero elsewhere. (b) p(x) = cm, r = 1,2,3,4,5,6, zero elsewhere.
(a) For p(x) = c(ſ)^x, x = 1, 2, 3, ..., the value of the constant c, such that p(x) satisfies the condition of being a probability mass function (pmf) of one random variable X is : (ſ - 1)/ſ.
(b) For p(x) = cm, x = 1, 2, 3, 4, 5, 6, and zero elsewhere, the value of the constant c, such that p(x) satisfies the condition of being a probability mass function (pmf) of one random variable X is : 1/21.
(a) For p(x) = c(ſ)^x, x = 1, 2, 3, ..., and zero elsewhere, we need to ensure that the sum of all probabilities equals 1. Since the function is defined for positive integers, we can use the geometric series formula:
Σ(c(ſ)^x) = 1, where x ranges from 1 to infinity.
c * (ſ/(ſ - 1)) = 1 (geometric series formula)
To find c, we simply rearrange the equation:
c = (ſ - 1)/ſ
So for this pmf, the constant c is (ſ - 1)/ſ.
(b) For p(x) = cm, x = 1, 2, 3, 4, 5, 6, and zero elsewhere, we again need the sum of all probabilities to equal 1:
Σ(cm) = 1, where x ranges from 1 to 6.
c * (1 + 2 + 3 + 4 + 5 + 6) = 1
c * 21 = 1
To find c, we rearrange the equation:
c = 1/21
So for this pmf, the constant c is 1/21.
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What can -85 be classified as like a Rational, Whole or a Integer number?
Answer:
-85 is rational and an integer, though an integer is the most specific
Step-by-step explanation:
Whole numbers do not include negative numbers
:]
A pancake recipe asks for one and one-half times as much milk as flour. If three and one-half cups of milk are used, what quantity of flour would then be needed, according to the recipe?
SOLUTION:
Step 1:
In this question, we are given the following:
A pancake recipe asks for one and one-half times as much milk as flour.
If three and one-half cups of milk are used, what quantity of flour would then be needed, according to the recipe?
Step 2:
The details of the solution are as follows:
The pancakes require 1.5 cups of milk and 1 cup of flour or a ratio of 1.5:1 or a fraction of
(1.5) / (1)
If you have 3.5 cups of milk you need x cups of flour
Set up a ratio of 1.5 / 1 = 3.5 / x
(1.5 divided by 1 equals 3.5 divided by x)
Cross multiply one numerator by the other denominator, and then the other way.
1.5x = 3.5
divide both sides by 1.5
x = 35/15 = 2 1/3 cups
CONCLUSION:
The quantity of flour that would be needed, according to the recipe =
\(2\frac{1}{3}\text{ cups}\)
Each side of a square office is 3 meters long. It will cost $44.14 per square meter to replace
the carpet in the office. What would be the total cost to replace the carpet?
Answer:
3*3*44.14$
That's the answer
Use a calculator
some of our farm fields are being left unused. does this have any implications for the economy's ppf diagram (with agricultural products on one axis and all other products on the other axis)?
Yes, the implications of leaving farm fields unused for the economy's PPF diagram can be seen in the output of agricultural products.
The PPF diagram shows the maximum output of two products that an economy can produce at a given time, and it is shaped like a curve. When farm fields are left unused, the amount of agricultural products that can be produced is decreased, resulting in a shift in the PPF curve inwards. This means that the economy has to sacrifice other goods to maintain the same level of production of agricultural products, leading to an opportunity cost. Thus, leaving farm fields unused has implications for the economy's PPF diagram, as it reduces the output of agricultural products, resulting in a shift in the PPF curve inwards.
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Please Help, this is 20pts worth it.. Please Don’t waste my points.. please help..
Answer:
1. 7+62+5+4
2. 18+62+5
3.15+4+1
4.5 families
6. three
Step-by-step explanation:
Please helpppppppppppppp
Answer:
Inequality would be the answer
Let X be a random variable with an expected value of E(X)=28 and a variance Var(X)=18. Find the expected value of E(X+6) and variance of Var(5X), respectively. 450,34 34,18 140,34 34,140 34,88 18,34 34,162 88,34 34,450 none of the above.
The expected value of E(X+6) is 34 and the variance of Var(5X) is 450.
Given that the expected value of X is E(X) = 28 and variance of X is Var(X) = 18.
We have to find the expected value of E(X+6) and variance of Var(5X).
Expected value of E(X+6)E(X+6) = E(X) + E(6)
By linearity of expected values, we have
E(X+6) = E(X) + E(6)
= 28 + 6 = 34.
Therefore, the expected value of E(X+6) is 34.
Variance of Var(5X)Var(5X) = Var(X)*5²
By linearity of variance, we have
Var(5X) = Var(X)*5²
= 18*25
= 450.
Therefore, the variance of Var(5X) is 450.
Thus, the expected value of E(X+6) is 34 and the variance of Var(5X) is 450. Hence, the correct option is 34,450.
The expected value of E(X+6) is 34 and the variance of Var(5X) is 450.
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WILL MARK AS BRAINLEIST!!
Question in picture!!
Note: The graph above represents both functions “f” and “g” but is intentionally left unlabeled
Answer:
f(x) is the blue graph, g(x) is the red graph.
x^2 - 3x + 17 - (2x^2 - 3x + 1) = 16 - x^2
16 - x^2 = 0 when x = -4, 4
So the area between these two graphs is (using the TI-83 graphing calculator):
fnInt (16 - x^2, x, -4, 4) = 85 1/3
What is the volume of papers that the tray can hold?
Answer:
D(300
Step-by-step explanation:
It in edu 2021
What would be a good function for this table?
Answer:
The equation of the line of best fit is y=(1)(12)x using the exponential regression.
Find the dimensions and maximum area of a rectangle if its perimeter is 12
Is the answer 48?
Please help!
In a random sample of Toyota car owners, 83 out of 112 said they were satisfied with the Toyota front-wheel drive, while in a similar survey of Subaru owners, 76 out of 81 said they were satisfied with the Subaru four-wheel drive. A 90% confidence interval estimate for the difference in proportions between Toyota and Subaru car owners who are satisfied with their drive systems is reported to be -0.197 ± 0.081. Which is a proper conclusion? A. The interval is invalid because probabilities cannot be negative. B. The interval is invalid because it does not contain zero. C. Subaru owners are approximately 19.7% more satisfied with their drive systems than are Toyota owners. D. 90% of Subaru owners are approximately 19.7% more satisfied with their drive systems than are Toyota owners. E. We are 90% confident that the difference in proportions between Toyota and Subaru car owners who are satisfied with their drive systems is between -0.278 and -0.116.
The proper conclusion is as follows:Option E is the correct conclusion. We are 90% confident that the difference in proportions between Toyota and Subaru car owners who are satisfied with their drive systems is between -0.278 and -0.116.
What is a confidence interval estimate?
Confidence intervals are statistical tools used to make inferences about population parameters based on sample statistics. A confidence interval is a range of values that has a high probability of containing an unknown parameter. The width of a confidence interval is determined by the level of confidence and the variability of the data.Random SamplingIn random sampling, every item in the population has an equal chance of being selected as part of the sample. As a result, random sampling should produce a representative sample, which is important in drawing valid conclusions. However, it is not always feasible or cost-effective to conduct a complete enumeration or census. Instead, a sample of the population is usually taken.
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robert has 4 indistinguishable gold coins and 4 indistinguishable silver coins. each coin has an engraving of a face on one side, but not on the other. he wants to stack the eight coins on a table into a single stack so that no two adjacent coins are face to face. find the number of possible distinguishable arrangements of the 8 coins.
The number of possible distinguished arrangements of the 8 coins will be 630.
We have Gold= 4 Silver= 4 coins.
So the number of ways of arranging 8 coins where four are similar and other four are similar is
8! /4!*4! = 70.
Now let's take cases with
U = head up
D = head down
DDDDDDDDDDDDDDDUDDDDDDUUDDDDDUUUDDDDUUUUDDDUUUUUDDUUUUUUDUUUUUUUUUUUUUUUTherefore, total number of ways will be 70*9 = 630.
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A population of 55 foxes in a wildlife preserve triples in size every 10 years. The function y=55•3x, where x is the number of 10-year periods, models the population growth. How many foxes will there be after 30 years?
Answer:
495
Step-by-step explanation:
there are three 10-year periods in 30 years so multiply 55 · 3(3), which is 495
13. A Commercial bank buys and sells foreign exchange using the rates shown below; IUS$ Buying rate Kshs.83.25 selling rate Kshs.84.05 An American tourist arrived in the country, with Us$8175 and exchanged 80% of the cash to local currency. While in country he spend kshs.443,595 and bought USA dollar ($) with the remaining amount. Determine the USA dollars he had as he left the country. (4 marks)
The tourist had $1200.91 in US dollars when he left the country.
The American tourist exchanged 80% of $8175 to local currency, which is:
0.8 x $8175 = $6540
To calculate how much local currency the tourist received for $6540, we can use the buying rate of Kshs.83.25 per US dollar:
Amount in local currency = $6540 x Kshs.83.25 per US dollar = Kshs.544335
After spending Kshs.443,595, the tourist had Kshs.544,335 - Kshs.443,595 = Kshs.100,740 left.
To calculate how much US dollars the tourist can buy with Kshs.100,740, we can use the selling rate of Kshs.84.05 per US dollar:
Amount in US dollars = Kshs.100,740 / Kshs.84.05 per US dollar = $1200.91
Therefore, the tourist had $1200.91 in US dollars when he left the country.
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Select all the possible solutions of 20y < -5 + 18y.
A) y> -2.5
B)y> -
5
2
□C) y < - //
5/2
□E) y >
□F)y <-
-
☐D)-2.5> y
5
38
5
38
The possible solutions of the inequality expression given as 20y < -5 + 18y are (c) y < -5/2, y < -2.5 and (d) -2.5 > y
How to determine the possible solutions of the inequality?From the question, we have the following parameters that can be used in our computation:
20y < -5 + 18y.
To start with, we need to collect the like terms of both sides
Using the above as a guide, we have the following:
20y -18y < -5
Next, we need to evaluate the like terms of both sides
Using the above as a guide, we have the following:
2y < -5
Lastly, we divide both sides by 2
y < -5/2
Express as decimal
y < -2.5
Switch the positions
-2.5 > y
Hence, the solutions are y < -5/2, y < -2.5 and -2.5 > y
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A 2-gallon bucket of paint costs $58.00. What is the price per quart? $
Answer:
7 dollars and 25 cents
Step-by-step explanation:
there is 8 quarts in 2 gallons then divide 58 dollars by 8 and you get 7 dollars 25 cents
Division is one of the four fundamental arithmetic operations. The price per quart is $7.25 per quart.
What is Division?The division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.
Given that A 2-gallon bucket of paint costs $58.00. Therefore, the price per gallon is,
Price per gallon = $58/2
Since a gallon is equal to 4 quarts. Therefore, the price per quart is,
Price per quart = $58/(4×2) = $7.25 per quart
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help appreciated thanks
Answer:
No
Step-by-step explanation:
x=(b-5)/c≠(5-b)/c
supposedly
b=6
c=1
x=6-5/1=1
x=5-6/1= -1
1≠ -1
Answer:
No
Step-by-step explanation:
x = b - 5 / L equal to - (5 - b) / L
2x-y + 2z = 6
3x+2y-z = 4
4x + 3y - 3z = 1
Answer:
Step-by-step explanation:
What is the area of the figure?
Answer:
3400
Step-by-step explanation:
60 * 70 = 4200
70 - 10 - 20 = 40
20 * 40 = 800
4200 - 800 = 3400
Answer:
3,400
Step-by-step explanation:
I did 70 times 60 which gave me 4,200 then with the 10 and 20 I subtracted it to 70 and did 20 times 40 that gave me 800 then subtracted that by 4200 then it gave me 3,400.
solve for x in [0, π]: 2 cos(x) > sec(x)
The value for x is 7π/6 and 11π/6.
sin2xsecx+2cosx=0
(2sinxcosx)(1/cosx)+2cosx=0
sinxcosx/cosx+2cosx=0
So,
2sinx+2cosx=0
2(sinx+cosx)=0
(2(sinx+cosx))²=0
4(sin²x+cos²x+2sinxcosx)=0
hence,
(sin²x+cos²x+2sinxcosx)/4=0/4
sin2x+cos2x+2sinxcosx=0
1+sin2x=0
sinx=−1/2
=7π/6 and 11π/6
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If two angles are congruent, then they have the same measure.
Hypothesis:
Conclusion:
Hypothesis: If two angles are congruent.
Conclusion: Then they have the same measure.
The hypothesis states that if two angles are congruent, which means they are identical in shape and size, then the conclusion is that they have the same measure. In other words, when two angles are congruent, their measures are equal.
Angles are typically measured in degrees or radians. When we say that two angles are congruent, it implies that the measures of those angles are the same. This can be understood through the transitive property of congruence, which states that if two angles are congruent to a third angle, then they are congruent to each other.
For example, if angle A is congruent to angle B, and angle B is congruent to angle C, then it follows that angle A is congruent to angle C. This implies that the measures of angle A and angle C are equal, as congruent angles have the same measure.
In conclusion, the hypothesis that if two angles are congruent implies that they have the same measure is valid and supported by the principles of congruence and the transitive property.
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Samuel has a bell box that contains
4 door bells, 3 office bells, and 7 big
bells. Without looking, Samuel
Chooses a bell from the box, what is the
relative frequency probability the
when he selects a doorbell?
Answer:
4 out of 14
Step-by-step explanation:
there is only 4 door bells and 14 bells in total
HELP ASAP!
I need to complete the table and I don’t know how!
Someone explain.
(What you need to do is in the pic)
Answer:
Step-by-step explanation:
1. a = 3, b = 4
3^2 + 4^2 = c^2
9 + 16 = c^2
25 = c^2
square root both sides
5 = c
2. 5^2 + 12^2 = c^2 a = 5, b = 12
25 + 144 = c^2
169 = c^2
square root both sides
13 = c
3. 6^2 + 8^2 = c^2 a = 6, b = 8
36 + 64 = c^2
100 = c^2
Square root both sides
10 = c
Express the radical using the imaginary unit, i. Express your answer in simplified form. EV -49 = =
You have the following expression:
\(\pm\sqrt[]{-49}\)In order to express the previous number as an expression with the imaginary unit, you consider the following:
\(\begin{gathered} 49=7^2 \\ \sqrt[]{-1}=i \end{gathered}\)where the square root of -1 is the imaginary unit i by definition. Thus, by replacing you obtain:
\(\pm\sqrt[]{-49}=\pm\sqrt[]{(-1)(49)}=\pm\sqrt[]{(-1)(7^2)}=\pm7\sqrt[]{-1}=\pm7i\)Hence, the given expression in terms of the imaginary unit is :
\(\pm7i\)