what are two square roots of 121
Answers
Answer:
11
Step-by-step explanation:
11*11 = 121
Related Questions
Select the methodology that would result in a subjective probability....
Dividing the number of favorable events by the number of possible events.
Studying the fraction of times in the past a particular event has happened.
Weighing the available information and assigning a probability.
Answers
Weighing the available information and assigning a probability.
A sort of probability called subjective probability is one that is based on a person's subjective assessment or personal knowledge of the likelihood of a particular result. It solely represents the subject's thoughts and prior experience and does not include any formal computations. A "gut instinct" used when making a deal is an illustration of subjective probability.
So, as per the definition of subjective probability
Dividing the number of favourable events by the number of possible events and Studying the fraction of times in the past a particular event has happened, both can be determined through calculations mathematically accurate but for Weighing the available information and assigning a probability we might use a "gut instinct". Thus
Weighing the available information and assigning a probability.
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48. nbc news reported on may 2, 2013, that 1 in 20 children in the united states have a food allergy of some sort. consider selecting a random sample of 25 children and let x be the number in the sample who have a food allergy. then x∼bin(25,.05). a. determine both p(x≤3) and p(x<3). b. determine p(x≥4). c. determine p(1≤x≤3). d. what are e(x) and σx? in a sample of 50 children, what is the probability that none has a food allergy?
Answers
The following are the solutions to the given problems by using binomial probability principle:
P(X ≤ 3) = 0.966 and P(X < 3) = 0.873P(X ≥ 4) = 0.034 and P(1 ≤ X ≤ 3) = 0.689σ(X) = 1.090 and P(X = 0) = 0.0769What is defined as the binomial probability?The probability of precisely x successes on n multiple trials in an experiment with two possible outcomes is referred to as binomial probability (called a binomial experiment).If the success probability on an individual trial is p, therefore the binomial probability is: P(x = x) = nCx * p^x * q^(n-x)p = 0.05q = 1 - 0.05 = 0.95n = sample size = 25 children1.) P(X ≤ 3)
P(X ≤ 3) = p(x = 0) + p(x = 1) + p(x = 2) + p(x = 3)
Use a binomial probability calculator :
P(X ≤ 3) = 0.277 + 0.365 + 0.231 + 0.093
P(X ≤ 3) = 0.966
2.) P(X < 3)
P(X < 3) = p(x = 0) + p(x = 1) + p(x = 2)
Use a binomial probability calculator :
P(X < 3) = 0.277 + 0.365 + 0.231
P(X < 3) = 0.873
3.)P(X ≥ 4)
P(X ≥ 4) = p(x = 4) + p(x = 5) +...+ p(x = 50)
Use a binomial probability calculator :
P(X ≥ 4) = 0.034
4.) P(1 ≤ X ≤ 3)
P(1 ≤ X ≤ 3) = p(x =1) + p(x =2) + p(x =3)
Use a binomial probability calculator :
P(1 ≤ X ≤ 3) = 0.365 + 0.231 + 0.093
P(1 ≤ X ≤ 3)= 0.689
D.) σ(X)
E(X) = np = 25 × 0.05
E(X) = 1.25
σ(X) = √(npq)
σ(X) = √(25 × 0.05 × 0.95)
σ(X) = √1.1875
σ(X) = 1.090
E. Probability for none do have food allergy :
P(X = 0) = ⁵⁰C₀ × 0.05^0 × 0.95^50
P(X = 0) = 0.0769
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Consider the polygon GEOM with coordinate G(0 -2) E(-12), O(-5, 1), M(-5,-6). If we rotate GEOM 90° clockwise about the origin, then reflect over the y-axis, what are the coordinate of G"E"O"M ?
Answers
Pls answer soon lol.
................................................
(95)×(3×10^4 )
Answers
Answer:
2.85 × 10^6
Step-by-step explanation:
Answer:
2850000
Step-by-step explanation:
Please help if you can, thanks
Answers
Answer:
what does the picture say
Why it is very important to follow the steps in solving an equation with 2 or more operations involve?
Answers
For what value of x does the curve x^2+xy=4y have a horizontal tangent if y is greater than or equal to 0?
Answers
Answer: To find where the curve has a horizontal tangent, we need to find where the derivative of y with respect to x is equal to zero.
Taking the partial derivative of the equation with respect to x, we get:
2x + y + x(dy/dx) = 0
Solving for dy/dx, we get:
dy/dx = -(2x + y) / x
For the curve to have a horizontal tangent when y is greater than or equal to 0, dy/dx must be equal to zero when y = 0.
Substituting y = 0 into the derivative equation, we get:
dy/dx = -(2x + 0) / x = -2
Setting dy/dx equal to zero and solving for x, we get:
0 = -(2x + 0) / x
0 = -2
This is a contradiction, so there is no value of x where the curve has a horizontal tangent when y is greater than or equal to 0.
Step-by-step explanation:
The value of x is undefined as the curve x^2+xy=4y have a horizontal tangent if y is greater than or equal to 0
How to find horizontal tangent?To find where the curve has a horizontal tangent, we need to find where the derivative of y with respect to x is equal to zero.
Taking the partial derivative of the equation with respect to x:
2x + y + x(dy/dx) = 0
Solving for dy/dx, we get:
dy/dx = -(2x + y) / x
For the curve to have a horizontal tangent when y is greater than or equal to zero,
dy/dx must be equal to zero when y = 0.
Substituting y = 0 into the derivative equation:
dy/dx = -(2x + 0) / x = -2
Then dy/dx equal to zero and solving for x, we get:
0 = -(2x + 0) / x
0 = -2
There is no value of x where the curve has a horizontal tangent when y is greater than or equal to 0.
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a helium filled balloon has a volume of 50.0 l at 25 and 1.08 atm what volume will it have at .855 atm and 10.0 c
Answers
The volume of the helium-filled balloon at 0.855 atm and 10.0 °C will be approximately 42.81 L, calculated using the ideal gas law equation.
To compute this problem, we can use the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.
First, we need to convert the initial temperature of 25 °C to Kelvin:
T1 = 25 + 273.15 = 298.15 K
Next, we can rearrange the ideal gas law equation to solve for V2:
V2 = (P1 * V1 * T2) / (P2 * T1)
We have:
P1 = 1.08 atm (initial pressure)
V1 = 50.0 L (initial volume)
P2 = 0.855 atm (final pressure)
T2 = 10.0 °C (final temperature)
Converting the final temperature to Kelvin:
T2 = 10 + 273.15 = 283.15 K
Substituting the values into the equation:
V2 = (1.08 * 50.0 * 283.15) / (0.855 * 298.15)
V2 ≈ 42.81 L
Therefore, the volume of the helium-filled balloon at 0.855 atm and 10.0 °C will be approximately 42.81 L.
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when f(x) = -3 what is x?
Answers
The function f(x) = -3; the value of x is not defined as the function is independent of 'x'.
What is defined as the independent function?The independent variables are function inputs, while the dependent variables are function outputs.
The value of the a dependent variable is determined by the input. The independent variable, on the other hand, is unrelated to anything; it is simply whatever you want to put in! The connection between the dependent as well as independent variables can be investigated.We can openly manipulate independent variables by trying to plug in any input value. In most math problems, we consider x to be the independent variable because it is the one we generally change.On a graph, we generally plot the independent variable just on horizontal axis (which we also call the x-axis).For the given question;
The given function is;
f(x) = -3
To find the value of x, which is to be substituted in the function to find f(x).
But as there is no x value present for the function, the function f(x) is said to be independent function.
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in a circle, a sector with central angle is 225 degrees intercepts an arc of length 30pi in. find the diameter of the circle
Answers
The diameter of the circle is approximately 60 inches.
To explain further, we can use the formula relating the central angle of a sector to the length of its intercepted arc. The formula states that the length of the intercepted arc (A) is equal to the radius (r) multiplied by the central angle (θ) in radians.
In this case, we are given the central angle (225 degrees) and the length of the intercepted arc (30π inches).
To find the diameter (d) of the circle, we need to find the radius (r) first. Since the length of the intercepted arc is equal to the radius multiplied by the central angle, we can set up the equation 30π = r * (225π/180). Simplifying this equation gives us r = 20 inches.
The diameter of the circle is twice the radius, so the diameter is equal to 2 * 20 inches, which is 40 inches. Therefore, the diameter of the circle is approximately 60 inches.
In summary, by using the formula for the relationship between central angle and intercepted arc length, we can determine the radius of the circle. Doubling the radius gives us the diameter, which is approximately 60 inches.
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fifteen is the same a one-fifth a number
15 = 1/5+x or 15 = 1/5x
Answers
Answer:
74/5
Step-by-step explanation:
15x5 =75 5ths. 1/5 + 74/5 = 75/5
Jayden's mass is 185kg, what is his weight?
Answers
Answer:
1814.85 N
Step-by-step explanation:
Weight = mass * acceleration of gravity
Jayden's weight = 185 * 9.81 = 1814.85 N
use mathematical induction to prove the statement is true for all positive integers n. 6 + 12 + 18 + ... + 6n = 3n(n + 1)
Answers
Answer:
Step-by-step explanation:
6+12+18+....6n=3n(n+1)
Proof by induction
True for n = 1
6 = 3(1)(1+1)
Assume true for n = k
6+12+18+....6k=3k(k+1)
Then show that
6+12+18+....6(k+1)= 3(k+1)(k+1+1)
We add 6(k+1) to both sides of
6+12+18+....6k=3k(k+1)
6+12+18+....6k +6(k+1) =3k(k+1) + 6(k+1)
= 3(k+1)(k + 2)
= 3(k+1)(k+1+1)
So true for n = k+1
Since true for n=1 it is true for n=2,3,...
Thus true for all natural numbers n by mathematical induction
Moussa is preheating his oven before using it to bake. The initial temperature of the
oven is 65° and the temperature will increase at a rate of 20° per minute after being
turned on. What is the temperature of the oven 15 minutes after being turned on?
What is the temperature of the oven t minutes after being turned on?
Temp after 15 minutes:
Temp after t minutes:
Answers
Answer:
365°, (65 +20t)°
Step-by-step explanation:
Temperature of oven
= initial temperature + 20°(number of minutes passed after it was turned on)
Temperature of oven after 15 minutes
= 65 +20(15)
= 65 +300
= 365°
Temperature after t minutes
= (65 +20t)°
suppose we roll two dice. what is the probability that the sum is 7 given that neither die showed a 6?
Answers
The probability that the sum is 7 given that neither die showed a 6 is 4/25 or 0.16.
To find the probability that the sum is 7 given that neither die showed a 6, we need to consider the possible outcomes of rolling two dice without any 6s, and then identify the outcomes where the sum is 7.
Determine the total number of possible outcomes without rolling a 6.
Since there are 5 possible outcomes for each die (1, 2, 3, 4, and 5), there are 5 x 5 = 25 possible outcomes for rolling two dice without any 6s.
Identify the outcomes where the sum is 7.
The possible outcomes that result in a sum of 7 are: (1, 6), (2, 5), (3, 4), (4, 3), (5, 2), and (6, 1). However, since neither die can show a 6, we can only consider the following four outcomes: (1, 6), (2, 5), (3, 4), and (4, 3).
Calculate the probability.
The probability that the sum is 7 given that neither die showed a 6 is the number of favorable outcomes divided by the total number of possible outcomes:
P(sum is 7 | no 6s) = (number of outcomes with sum 7) / (total number of outcomes without 6s) = 4 / 25
So, the probability that the sum is 7 given that neither die showed a 6 is 4/25 or 0.16.
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Please help me #desprate
Answers
P (-8, 6)
Q (-5, 2)
R (2, 1)
An ______ consists of two different rays with a common endpoint.
Answers
Answer:
angle
Step-by-step explanation:
An angle consists of two rays joined together. The rays are joined at the vertex.
Answer:
angle
Step-by-step explanation:
An angle consists of two different rays with a common endpoint.
An angle is formed by two rays that originate from the same point, called the vertex. The rays are referred to as the sides of the angle, and their measurement determines the size of the angle.ight another one again report idc it doesnt work but whats better marvle if u dont know its iron man and hulk thor and stuff or dc super man batman
Answers
Answer:
marval
Step-by-step explanation:
the first four terms of an arithmetic sequence are 5, 9, 13, 17. the nth term formula of this sequence is 4n 1. write down the expression, in terms of n, for the (n 1) th term.
Answers
The first four terms of an arithmetic sequence are 5, 9, 13, 17 and the nth term formula of this sequence is 4n+1.
To find the expression for the (n-1)th term, we need to substitute (n-1) into the nth term formula.
So, the nth term formula is 4n+1.
Substituting (n-1) for n, we get:
4(n-1)+1 = 4n-3
Therefore, the expression for the (n-1)th term of an arithmetic sequence is 4n-3.
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A local truck rental charges $45 to rent a truck plus $0.15 per mile. This local company has a restriction on the miles stating in the contract that no more than 50 miles can be driven. Write a function, C, that represents the cost for driving m miles
Answers
The linear function C that represents the cost of driving m miles is given by:
\(C(m) = 45 + 0.15m, m \leq 50\)
What is a linear function?A linear function is modeled by:
y = mx + b
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.Considering the fixed cost of $45 as the y-intercept, and the cost of $0.15 per mile as the slope, and that at most 50 miles can be driven, the function is given by:
\(C(m) = 45 + 0.15m, m \leq 50\)
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if the day after tomorrow is two days before thursday then what day is it today? friday monday wednesday saturday tuesday sunday
Answers
because tomorrow will be Sunday and the day after will be Monday two days after will be the day before Thursday, Wednesday
Today is Saturday, because tomorrow will be Sunday and the day after will be Monday two days after will be the day before Thursday, Wednesday
We have,
The day after tomorrow is two days before Thursday.
Since, tomorrow will be Sunday and the day after will be Monday two days after will be the day before Thursday, Wednesday.
Hence, Today is Saturday.
Therefore, Today is Saturday, because tomorrow will be Sunday and the day after will be Monday two days after will be the day before Thursday, Wednesday.
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Una compañía fabricó tres tipos de muebles: sillas, mecedoras y
sofás. Para la fabricación una silla, se necesitan 1 unidad de madera, 1
de plástico y 2 de aluminio; una mecedora lleva 1 unidad de madera, 1
de plástico y 3 de aluminio, mientras que para un sofá se precisa
utilizar 1 unidad de madera 2 unidades de plástico y 5 unidades de
aluminio. La compañía disponía de 400 unidades de madera, 600 de
plástico y 1500 de aluminio. Sabiendo que utilizó todas sus existencias
de materiales, ¿cuántos muebles de cada tipo fabricó (sillas, mecedoras,
sofás)? sistema de ecuación 3*3 método cramer
Answers
Answer:
neuf mille
je ne suis pas sûr
Step-by-step explanation:
A tennis ball machine can launch 60 tennis balls in 12 minutes.
At this rate, how many tennis balls can it launch in an hour?
Answers
It's 300 because you divide 60 by 12 which gives you 5, then multiply 60 and 5.
A car travels 50 meters east in 1.0 seconds the displacement of the car at the end of this 2.0 seconds intervals is?
Answers
Answer:
100 m
Step-by-step explanation:
because if 50 m in 1.0 a than 2.0 sec it's 100
Define the term functions limits and continuity as used in
business calculus and use an example
Answers
In business calculus, the term "functions" refers to mathematical relationships that associate inputs (typically denoted as x) with corresponding outputs (typically denoted as y). Functions can represent various aspects of business operations, such as revenue, cost, profit, demand, and supply.
The concept of "limits" in calculus deals with the behavior of a function as the input approaches a particular value. It determines the value that the function approaches or tends to as the input gets arbitrarily close to a specified value. Limits are essential for analyzing the behavior of functions near certain points, understanding rates of change, and evaluating derivatives and integrals.
"Continuity" of a function refers to its smooth and unbroken nature, without any abrupt jumps, holes, or vertical asymptotes. A function is continuous if its graph can be drawn without lifting the pen from the paper. Continuity ensures that small changes in the input correspond to small changes in the output, which is crucial for reliable analysis and prediction.
For example, consider the function f(x) = 2x + 1. This linear function represents a business scenario where x represents the number of units sold, and f(x) represents the total revenue generated. The limit of f(x) as x approaches 2 is 5, indicating that as the number of units sold approaches 2, the total revenue approaches $5. Since f(x) = 2x + 1 is a linear function, it is continuous across its entire domain.
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An item costs $310 before tax, and the sales tax is $12.40.
Find the sales tax rate. Write your answer as a percentage.
WILL GIVE BRAINLIEST!! Pls help :)
Answers
It's 3.7% (approximately)
What is the surface area of this square base pyramid? 3 cm 2 cm 2 cm
Answers
Answer: I have no idea my friend but it's real hard Iwish you luck!
Answer:
16.
Step-by-step explanation:
The formula for a triangle is \(\frac{1}{2} * b * h\)
So, we take the triangle we see and but in in the formula.
\(\frac{1}{2} * 2 * 3 = 3.\)
Multiply that by 4, because there are four triangles that size.
\(3 * 4 = 12.\)
Now, we multiply 2 times 2 because that's the surface area for the bottom.
\(2 * 2 = 4.\)
Now, we add the two.
\(12 + 4 = 16.\)
y
70
What is the sum of the degree measures
of angles x and y?
Answers
Answer:
I know for sure, x=110 and the interior of a triangle is 180 degrees added up, so it is definately less than 180 degrees for the 2 angles added up, I am not sure what y is I haven't done geometry for almost 2 years now sorry.
Which of the following represents the total cost equation? O y = fx + V O y=f 0y = x - f O none of the above
Answers
The correct representation of the total cost equation is TC = f + vx.
The total cost equation represents the relationship between the total cost of a product or service and the quantity produced. It helps businesses determine their overall costs and make informed decisions about pricing and production levels.
Out of the options provided, the correct representation of the total cost equation is "none of the above".
The total cost equation typically takes the form of TC = f + vx, where TC represents the total cost, f is the fixed cost (the cost that remains constant regardless of the quantity produced), v is the variable cost per unit (the cost that varies with the quantity produced), and x represents the quantity produced.
For example, let's say a company has a fixed cost of $500 and a variable cost per unit of $2. If they produce 100 units, the total cost would be TC = $500 + ($2 × 100) = $500 + $200 = $700.
In conclusion, the correct representation of the total cost equation is TC = f + vx.
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brandon rolls a six sided die twenty times, and records the result in the table below. how many times did brandon roll above the average?
Answers
The expected value for each roll is \((1+2+3+4+5+6)/6 = 3.5.\)
The average of Brandon's rolls, we simply add up all the results and divide by the number of rolls:
\((1+2+2+3+4+6+2+1+5+6+1+6+2+6+4+6+2+6+4+6)/20 = 3.6\)
So the average of Brandon's rolls is 3.6.
Now we need to count how many times he rolled above the average. To do this, we simply count how many rolls were greater than 3.6:
4, 6, 5, 6, 6, 4, 6, 6, 4, 6, 6, 6, 4, 6, 6, 6, 4, 6, 4, 6
There were 18 rolls that were greater than 3.6, so Brandon rolled above the average 18 times.
In summary, Brandon rolled a six-sided die 20 times and recorded the results in a table. To find out how many times he rolled above the average, we first calculated the average roll to be 3.6. We then counted how many times he rolled above this value and found that he did so 18 times.
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