Answers
Answer:
Keep adding 8 56 times subtract three which is 472
Step-by-step explanation:
mulitiply 59 times 8
Related Questions
If an item is on sale for 60% off, that means you actually PAY _____% of the price.
Answers
Answer:
40%
Step-by-step explanation:
100-60=40
are all vertical lines parallel?
Answers
Answer: Yes
Step-by-step explanation: All vertical lines have the same slope and because of that they are always parallel.
Darren scored a mark of 57 on the Miller Analogies Test. This test has a mean of 50 and a standard deviation of 5. Jennifer scored 120 on the WISC Intelligence Test. This test has a mean of 100 and a standard deviation of 15. Comparing their scores, comment on who had a better score? Explain your answer
The performance scores (each score is an x-value) of three drivers were converted to standard scores. Comment on what each of the standard z-score indicates and determine the related implication
Z = 0.03
Z = 4.2
Z = -0.49
Answers
Darren had a better score than Jennifer based on their respective test scores.
To compare their scores, we need to consider their individual test scores in relation to the mean and standard deviation of each test.
For Darren's score of 57 on the Miller Analogies Test, we can calculate the z-score using the formula:
z = (x - μ) / σ
where x is the individual score, μ is the mean, and σ is the standard deviation. Plugging in the values, we have:
z = (57 - 50) / 5 = 1.4
For Jennifer's score of 120 on the WISC Intelligence Test, we can calculate the z-score using the same formula:
z = (120 - 100) / 15 = 1.33
Comparing the z-scores, we can see that Darren's z-score of 1.4 is higher than Jennifer's z-score of 1.33. A higher z-score indicates a score that is further above the mean relative to the standard deviation. Therefore, Darren's score of 57 on the Miller Analogies Test is relatively better than Jennifer's score of 120 on the WISC Intelligence Test in terms of their respective distributions.
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A container in the shape of a cylinder has a volume of 60 cubic meters. Its base has an area of 15 square units. What is the height of the container?
options
3m
2m
4m
5m
Answers
The answer would be 4m
Starting a business is a risky, but sometimes very profitable decision. Last year, a financial analyst tracked business startups in the IT industry and found that 65% of these businesses generated a profit in their first year. The analyst decides to track 50 new IT businesses this year. Assuming a binomial distribution, a. What is the probability that exactly 32 of them will generate a profit in the next year? b. What is the probability that at most 30 will generate a profit in the next year? c. What is the probability that at least 35 of them will generate a profit in the next year?
Answers
(a) The probability of success is 65% or 0.65, and the number of trials is 50.
(b) The probability as follows:
P(X ≤ 30) = P(X = 0) + P(X = 1) + P(X = 2) + ... + P(X = 30)
(C) The probability as follows:
P(X ≥ 35) = P(X = 35) + P(X = 36) + P(X = 37) + ... + P(X = 50)
a. The probability of exactly 32 of the 50 IT businesses generating a profit in the next year can be calculated using the binomial distribution formula. In this case, the probability of success (a business generating a profit) is 65% or 0.65, and the number of trials is 50. Using the formula, we can calculate the probability as follows:
P(X = 32) = C(50, 32) * (0.65)^32 * (1 - 0.65)^(50 - 32)
where C(n, k) represents the binomial coefficient, equal to n! / (k! * (n - k)!). Calculating this expression gives us the probability that exactly 32 businesses will generate a profit.
b. To calculate the probability that at most 30 businesses will generate a profit, we need to find the cumulative probability from 0 to 30. We can calculate the probability as follows:
P(X ≤ 30) = P(X = 0) + P(X = 1) + P(X = 2) + ... + P(X = 30)
The problem involves determining the probability that at most 30 out of 50 IT businesses will generate a profit in their first year. We can use the binomial distribution formula to calculate this probability. The formula is given by:
P(X ≤ k) = Σ (nCk * p^k * q^(n-k))
Where:
P(X ≤ k) is the probability of having at most k successes,
n is the number of trials (50 businesses),
k is the number of successes (profitable businesses),
p is the probability of success (65% or 0.65),
q is the probability of failure (35% or 0.35),
nCk is the combination formula (n choose k).
To find the probability that at most 30 businesses will generate a profit, we need to calculate the cumulative probability from 0 to 30. Using the binomial distribution formula, we can find the probability of each possible outcome (0, 1, 2, ..., 30) and sum them up. The cumulative probability can be calculated using software or statistical tables.
c. To calculate the probability that at least 35 businesses will generate a profit, we need to find the cumulative probability from 35 to 50. We can calculate the probability as follows:
P(X ≥ 35) = P(X = 35) + P(X = 36) + P(X = 37) + ... + P(X = 50)
These calculations can be performed using a statistical software package, spreadsheet software, or using statistical tables for the binomial distribution.
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Find the equation of the sphere in standard form, one of whose diameters has (-5,2, 9) and (3, 6, 1) as ondpoints. (a) x2 + y2-2 + 2x + 8y - 10z +6=0 (b) x2 + y2 + 2 + 2x - 8y + 10z +6 = 0 (C) x2 + y2 + 2 + 2A-8y- 10z + 6 = 0 (d) x2 + y2 +7 + 2x + 8y - 10z-6 = 0
Answers
The equation of the sphere in standard form, one of whose diameters have (-5, 2, 9) and (3, 6, 1) as endpoints, is [tex]x^2 + y^2 + z^2 - 8x - 4y - 10z + 48 = 0[/tex]. Therefore, the correct option is (d) [tex]x^2 + y^2 + 7 + 2x + 8y - 10z - 6 = 0[/tex].
To find the equation, we start by finding the center of the sphere. The center of the sphere is the midpoint of the line segment connecting the given endpoints. Using the midpoint formula, we find the center to be [tex]((-5 + 3)/2,(2 + 6)/2,(9 + 1)/2) = (-1, 4, 5)[/tex].
Next, we find the radius of the sphere. The radius is half the length of the diameter, which is the distance between the two endpoints. Using the distance formula, we find the radius to be [tex]\sqrt{(-5 - 3)^2 + (2 - 6)^2 + (9 - 1)^2} = \sqrt{64 + 16 + 64} = \sqrt{144} = 12[/tex].
Finally, we substitute the center and radius into the equation of a sphere: [tex](x - h)^2 + (y - k)^2 + (z - l)^2 = r^2[/tex], where (h, k, l) is the center and r is the radius. Plugging in the values, we get [tex](x + 1)^2 + (y - 4)^2 + (z - 5)^2 = 12^2[/tex].
Expanding and simplifying, we arrive at the equation for sphere's standard form, [tex]x^2 + y^2 + z^2 - 8x - 4y - 10z + 48 = 0[/tex].
Therefore, the correct option is (d) [tex]x^2 + y^2 + 7 + 2x + 8y - 10z - 6 = 0[/tex].
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what what is the instantaneous velocity of the caterpillar at time t=6
a) 0 m/s
b) 3.0 m/s
c) 6.0 m/s
d) 0.33 m/s
Answers
In this graph the instantaneous velocity=decline.
You just have to do this:
And the answer is letter (A)
Assume that females have pulse rates that are normally distributed with a mean of u=72.0 beats per minute and a standard deviation of a 12.5 beats per minute. Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is less than 70 beats per minute The probability is (Round to four decimal places as needed.) b. If 16 adult females are randomly selected, find the probability that they have pulse rates with a mean less than 79 beats per minute The probability is (Round to four decimal places as needed.) c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 307 OA. Since the distribution is of individuals, not sample means, the distribution is a normal distribution for any sample size OB. Since the mean pulse rate exceeds 30, the distribution of sample means is a normal distribution for any sample size OC. Since the onginal population has a normal distribution, the distribution of sample means is a normal distribution for any sample size. OD. Since the distribution is of sample means, not individuals, the distribution is a normal distribution for any sample size a. If 1 adult female is randomly selected, find the probability that her pulse rate is less than 79 beats per minute The probability is (Round to four decimal places as needed.) b. I 16 adult females are randomly selected, find the probability that they have pulse rates with a mean less than 79 beats per minute The probability is (Round to four decimal places as needed.) c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 309 O A Since the distribution is of individuals, not sample means, the distribution is a normal distribution for any sample size. OB. Since the mean pulse rate exceeds 30, the distribution of sample means is a normal distribution for any sample size OC. Since the original population has a normal distribution, the distribution of sample means is a normal distribution for any sample site OD. Since the distribution is of sample means, not individuals, the distribution is a normal distribution for any sample size
Answers
The probability that a randomly selected adult female has a pulse rate less than 70 beats per minute is about 0.4371.
What is the probabilitya. To find the probability that a randomly selected adult female has a pulse rate less than 70 beats per minute, one have to calculate the z-score and use the standard normal distribution.
The z-score can be calculated as:
z = (x - μ) / σ
where:
x = the value (70 beats per minute)
μ = the mean (72.0 beats per minute)
σ = the standard deviation (12.5 beats per minute).
So putting it into the formula, it will be:
z = (70 - 72.0) / 12.5
z = -0.16
One can know probability using the z-score.
Check z-score in the standard normal distribution table, and the value will be 0.4371 (rounded to four decimal places).
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HELP PLZ WILL GIVE BRAINLIST
Answers
Answer:
V=141.3
Step-by-step explanation:
V=π*r2*h or V=B.h
V=3.14*(3*3)*5
V=3.14*9*5
V=141.3
The number of cellular phones in use in the United States is increasing exponentially The number, N, in millions, in use is given by the exponential function N(t) -0.05(1.32), where "q" is the number of years after 1990. (Source: Cellular Telecommunications and Internet Association) Find N(30) and explain its meaning in the context of the scenario, b. Find t when N(O) = 420 and explain its meaning in the context of the scenario, c. Explain the meaning of the value 1.32 (from the equation) in the context of the scenario. 4. Use your calculator's graphing feature to solve 3' = 4x+5. Explain how you used your calculator and reproduce any tables or graphs produced by your calculator. Include detailed graph for points too please.
Answers
The number of cellular phones in the US is projected to grow exponentially, reaching 5.071 million in 30 years and 420 million in 13.955 years. The growth factor is 1.32, which suggests that the number of cellular phones is increasing by approximately 32% each year.
a. To find N(30), we substitute t = 30 into the given exponential function:
[tex]\[N(t) = 0.05 * (1.32)^t\][/tex]
N(30) = 0.05 * (1.32)³⁰
You can calculate this value using a calculator or a computer software. The result is approximately 5.071 million.
In the context of the scenario, N(30) represents the estimated number of cellular phones in use in the United States, in millions, 30 years after 1990. It indicates the projected growth in the number of cellular phones over time based on the given exponential function.
b. To find t when N(0) = 420, we set N(t) equal to 420 and solve for t:
[tex]\[420 = 0.05 * (1.32)^t\][/tex]
Dividing both sides by 0.05:
[tex]\begin{equation}8400 = (1.32)^t[/tex]
To solve this equation for t, we can take the logarithm of both sides using the base 1.32:
log(8400) = t * log(1.32)
Now, solve for t by dividing both sides by log(1.32):
[tex]\begin{equation}t = \log(8400) / \log(1.32)[/tex]
You can calculate this value using a calculator or a computer software. The result is approximately 13.955 years.
In the context of the scenario, t represents the number of years after 1990 when the number of cellular phones in use in the United States reaches 420 million. It indicates the time it takes for the number of cellular phones to reach a specific value based on the given exponential function.
c. The value 1.32 in the equation N(t) = 0.05 * (1.32)^t represents the growth factor or the rate of exponential growth of the number of cellular phones. It indicates how much the number of cellular phones is multiplied by each unit of time (in this case, each year). In this scenario, the value 1.32 suggests that the number of cellular phones is increasing by approximately 32% each year.
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4x + 14 = 4x + 24 its to hard for me
Answers
Answer:
x=10
Step-by-step explanation:
refer to exhibit 34-1. the opportunity cost of one unit of y in country b is group of answer choices 1 unit of x. 0.5 units of x. 2 units of x. 20 units of x.
Answers
In Exhibit 34-1, the opportunity cost of one unit of Y in Country B is 2 units of X.
Opportunity cost refers to the value of the next best alternative that is forgone when making a choice. In this case, the opportunity cost of one unit of Y in Country B is being compared to the amount of X that could be produced instead.
The given information states that the opportunity cost of one unit of Y in Country B is 2 units of X. This means that for every unit of Y that Country B produces, it must give up the production of 2 units of X. In other words, the resources and efforts that could have been used to produce 2 units of X are instead allocated to producing one unit of Y.
This relationship indicates the relative trade-off between the production of X and Y in Country B. By sacrificing the production of 2 units of X, Country B can produce one unit of Y. The opportunity cost of producing Y is therefore 2 units of X.
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convert (badfaced)16 from its hexadecimal expansion to its binary expansion
Answers
The binary expansion of (badfaced)16 is 10111010111111011010111110101101 2.
In order to convert (badfaced)16 from its hexadecimal expansion to its binary expansion, we need to follow the steps below:
Step 1: Write down the hexadecimal number (badfaced)16
Step 2: Write the binary equivalent of each hexadecimal digit (use the table below)
Step 3: Combine all the binary digits to get the answer
Table showing the binary equivalent of each hexadecimal digit Binary Equivalentb00001011a00001010d00001101f00001111a00001010c00001100e00001110d00001101
Step 2: Writing the binary equivalent of each hexadecimal digit(badfaced)16 = b a d f a c e d
Step 3: Combining all the binary digits to get the answer(badfaced)16 = 10111010111111011010111110101101 2
Thus, the binary expansion of (badfaced)16 is 10111010111111011010111110101101 2.
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Express your answer in scientific notation. 6.4 * 10^5 + 36,000 =
Answers
Answer:
6.76x10^5
^ represents to the 5th power
Step-by-step explanation:
It costs $4.95 to professionally dryclean a pair of slacks. Marcie uses a product that allows her to dry-clean clothes in her own dryer. For about $12, she can dry-clean 16 garments. 1. How much would it cost to have the slacks professionally dry-cleaned 16 times? 2. How much would she save by doing the job herself?
Answers
2. Marcie would save $67.20 doing the job herself.
Explanation:
1. It’s simple really. Just multiply $4.95 and 16. Which will give you $79.20.
2. Also very simple. Just subtract $12 from $79.20 and you should get $67.20.
¿Cuál es el valor de X en la ecuación 6(4x+1)-3(2x-3)=3(4x-5)-6(x+1)?
Answers
Using mathematical operators, the value of x in the equation is -3
What is an equation?An equation is a mathematical statement that shows that two expressions are equal. There are different types of equations based on the degree. Linear equation, quadratic equation, and cubic equation are some of the common types of equations.
Linear equations have one degree, quadratic equations have two degrees, and cubic equations have three degrees. The degree of an equation is the highest power of the variable in the equation.
In the given problem, we can find the value of x by using mathematical operators.
6(4x + 1) - 3(2x - 3) = 3(4x - 5) - 6(x + 1)
Open the brackets;
24x + 6 - 6x + 9 = 12x - 15 - 6x - 6
Collect like terms
24x - 6x + 9 + 6 = 12x - 6x - 6 - 15
18x + 15 = 6x - 21
18x - 6x = -21 - 15
12x = -36
Divide both sides by the coefficient of x;
12x/12 = -36/12
x = -3
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A cylinder has a height of 16 meters and a diameter of 26 meters. What is its volume? Use ≈ 3.14 and round your answer to the nearest hundredth.
Answers
Answer:
V= 5224.96
Step-by-step explanation:
To find the volume for a cylinder, you need to use the formula
V=(pi)r^2h.
The question gives is the diameter. The radius is half of the diameter, so you would divide by 2.
16/2 = 8.
Now we plug in the numbers and solve.
V= (pi) 8^2(26)
V= (pi)(64)(26)
V=(pi)(1664)
V= 5224.96
Help me plz. I need this done TODAY.
Answers
2
A = 2.5 km
b= 5 km
h =
Answers
Answer:
First of all, we have to make area km by multiplying 10 then solve, the answer is 5
regalo puntos y me dan su ID en free fire o el nombre como sale
tengo 12 años
Answers
Answer:
Eso es loca
Step-by-step explanation:
brainliest please??
Answer:
OK
Step-by-step explanation:
Write in standard form:
v^2 = 81
Answers
This should be it, correct me if I’m wrong.
V=9,/9678
find the surface area of the figure below
Answers
Answer:
64
Step-by-step explanation:
square= 16
triangle= 12
12*4 = 48+16 = 64
Answer:
64 m²
Step-by-step explanation:
Hello There!
The surface area is the total area of the figure
So in order to find the area we need to find the area of each shape
For the square:
the square has a length of 4 so we can simply find the area by squaring it
4 * 4 = 16
so the area of the square is 16 square meters
Now we need to find the area of the triangles
The formula for area of a triangle is
[tex]A=\frac{bh}{2}[/tex]
where b = base and h = height
The triangles dimensions are:
base - 4m
height - 6m
having found these dimensions we plug them in into the formula
[tex]A=\frac{4*6}{2} \\4*6=24\\\frac{24}{2} =12[/tex]
so the area of one of the triangles is 12 square meters
We want to find the total area of all of the triangles
To do so we multiply the area of one triangle by 4 (because there are four triangles)
12 * 4 = 48
So the total area of the four triangles is 48 square meters
Finally we add the two areas
48 + 16 = 64
so we can conclude that the total surface area of the pyramid is 64 m²
A grain silo is shown below:
Grain silo formed by cylinder with radius 6 feet and height 168 feet and a half sphere on the top
What is the volume of grain that could completely fill this silo, rounded to the nearest whole number? Use 22 over 7 for pi.
Answers
Answer: 13750+262=14,012 ft^3
Step-by-step explanation:
Hello!!!
Find the volume of the bottom and top separately and then add them. Cylinder volume is the area of the bottom times the height (22/7)(5^2)•175=13750 ft^3
The volume of a sphere isV=(4/3)(22/7)r^3where r is the radius. also 5 since it fits on the cylinder. Also we only want half the sphere so useV=(2/3)(22/7)•5^3=261.9 ft^3 round upto 262. Now add together 13750+262=14,012 ft^3
Hope this helps~!!!!!
Can someone really help me!
Answers
5(20)
100
lets take number one for example,
When subtracting negative numbers, the (-) in the number (-20) cancels out the original minus sign, therefore, to answer the equation:
10 - (-20)
you would need to turn the equation into an addition problem, getting the equation:
10 + 20
and from there you can get the simple answer of:
30
(brainliest please)
Please help me!!!
Hhhhhhhhhhhhhh
Answers
Answer:
C: -|x| + 3
Step-by-step explanation:
From the graph, we see that when y = 2, x is either +1 or -1
Also,when y = 1, x = +2 or -2
Thus,we can say that;
y = (-x) + 3 or -(x - 3)
So, we can write this in absolute value form as; y = -|x| + 3
find the volume of the 2 dice if the length of the base of the cube is 4cm
A) 64cm cubed
B) 96cm cubed
C) 108cm cubed
D) 128cm cubed
Answers
Answer:
I think the answer is A 64cm cubed
The volume of a cube is 216 cubic feet. What is the length of each side of the cube?
side = ? ? ? feet
Answers
Answer:
find the cube root of 216 to get the length of one side as you get the volume of a cube by length x length x length
Step-by-step explanation:
the the cube root of 216 is 6
so the length of one side is 6 inches
Hope This Helps :)
Answer: I think it is 54 because there are four sides of a cube. So I just did 216/4 and got 54.
Step-by-step explanation:
Might be wrong but this is what I think the answer is.
Prove the The Argument principle for meromorphic functions i.e. calculate the integral 1 f' L 2πi where does not hit zeroes or poles of f.(meromorphic: locally a quotient of two holomorphic functions).
Answers
The Argument Principle for meromorphic functions states that the integral of the logarithmic derivative of a meromorphic function around a closed curve is equal to 2πi times the sum of the winding numbers of the curve around its zeros and poles. This result is derived using the Residue Theorem and the properties of zeros and poles.
To prove the Argument Principle for meromorphic functions, we start by considering a meromorphic function f(z) on a closed curve C, where f(z) is holomorphic except at a finite number of isolated singularities (poles and/or removable singularities) within the region enclosed by C. We assume that C is positively oriented.
The Argument Principle states that the integral of the logarithmic derivative of f(z) along the curve C is equal to 2πi times the sum of the winding numbers of the curve around the singularities of f(z) within the region enclosed by C. Mathematically, it can be expressed as:
∮C (f'(z)/f(z)) dz = 2πi (N - P)
where N is the sum of the winding numbers of C around the zeros of f(z) and P is the sum of the winding numbers of C around the poles of f(z).
To prove this, we can use the Residue Theorem. First, we write f(z) as a product of its zeros and poles:
f(z) = (z - z₁)^(n₁) (z - z₂)^(n₂) ... (z - z_N)^(n_N) / (z - w₁)^(m₁) (z - w₂)^(m₂) ... (z - w_P)^(m_P)
where z₁, z₂, ..., z_N are the zeros of f(z) with respective multiplicities n₁, n₂, ..., n_N, and w₁, w₂, ..., w_P are the poles of f(z) with respective multiplicities m₁, m₂, ..., m_P.
Taking the logarithmic derivative of f(z), we get:
(f'(z)/f(z)) = ∑ (n_j/(z - z_j)) - ∑ (m_k/(z - w_k))
Now, we consider the integral of (f'(z)/f(z)) dz along the closed curve C. By the Residue Theorem, this integral can be evaluated as the sum of the residues of the function (f'(z)/f(z)) at its isolated singularities within the region enclosed by C.
The residues at the zeros z_j of f(z) are given by n_j, and the residues at the poles w_k of f(z) are given by -m_k. Therefore, the integral becomes:
∮C (f'(z)/f(z)) dz = ∑ (n_j) - ∑ (m_k) = N - P
where N is the sum of the winding numbers of C around the zeros of f(z), and P is the sum of the winding numbers of C around the poles of f(z).
Finally, using the fact that the integral of (f'(z)/f(z)) dz is equal to 2πi times the sum of the residues, we arrive at:
∮C (f'(z)/f(z)) dz = 2πi (N - P)
which proves the Argument Principle for meromorphic functions.
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Angle 1 is an alternate exterior to angle 8.
If angle 1 = 30 degrees, what is the measure of angle 8?
Answers
Answer:
If the two alternate exterior angles are from two parallel lines cut by a transversal, angle 8 would be 30 degrees.
Explanation:
Alternate exterior angles resulting from two parallel lines cut by a transversal are congruent.
Inspection of a random sample of 24 aircraft showed that 16 needed repairs to fix a wiring problem that might compromise safety (a) How large a sample would be needed to estimate the true proportion of jets with the wiring problem with 90 percent confidence and an error of + 4 percent? (Enter your answer as a whole number (no decimals). Use a z. value taken to 3 decimal places in your calculations.) Sample size (b) Would the airline actually conduct further sampling, or just inspect all the planes? Conduct further sampling Inspect all the planes
Answers
The sample size required to estimate the true proportion of jets with the wiring problem with 90% confidence and an error of +4% is approximately 92 (rounded up to the nearest whole number).
To determine the sample size needed to estimate the true proportion of jets with the wiring problem, we can use the formula for sample size calculation for proportions:
n = ([tex]Z^2 * p * q[/tex]) / [tex]E^2[/tex]
Where:
n = sample size
Z = Z-score corresponding to the desired confidence level (90% confidence corresponds to a Z-score of 1.645)
p = estimated proportion (16/24 = 0.6667)
q = 1 - p
E = maximum error tolerance (4% = 0.04)
Let's calculate the sample size:
p = 0.6667
q = 1 - p = 0.3333
E = 0.04
Z = 1.645
n = ([tex]1.645^2[/tex] * 0.6667 * 0.3333) / [tex]0.04^2[/tex]
n ≈ 91.62
Regarding the decision to conduct further sampling or inspect all the planes, it depends on the context and resources available. If inspecting all the planes is feasible and does not require excessive time or cost, it might be preferred to ensure the safety of all aircraft.
However, if conducting further sampling is a practical and reliable way to estimate the proportion while saving time and resources, the airline might choose to conduct additional sampling.
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