Answer:
40 p
Step-by-step explanation:
2.50 plus 40 equal 2.90 and that is how u get ur answer
Suppose that survey is planned to estimate the proportion of population that is left-handed The sample data will be used to form confidence interval: Which one of the following combinations of sample size and confidence leve will give the widest interval? n E 500, confidence level 909 n = 1,000, confidence level 909 n = 500, confidence level 959 n = 1,000, confidence level 959 Explain why this sample size and confidence level will give the widest interval: The Select-- sample size and Select- confidence level will both tend to increase the width of the confidence interval:
The 500 sample size and 95% confidence level will both tend to increase the width of the confidence interval.
In this question, we have been given the combinations of sample size and confidence level.
We need to select a combinations of sample size and confidence level that will give the widest interval.
We know that the confidence level is typically set in the range of 99% to 80%. The 95% confidence interval will be wider than the 90% interval and which will be wider than the 80% interval.
As we know increasing the confidence will increase the margin of error which results in a wider interval.
But increasing the sample size decreases the width of confidence intervals, as it decreases the standard error.
This means, for the widest interval we need to select a high confidence interval and small sample size.
Therefore, the sample size = 500 and the confidence interval = 95% will give the widest interval.
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What is the geometric mean of: 1, 2, 8, and 16?
Answer:
I think 8 is the geometric
Find the missing side. 31° Z z = [?] Round to the nearest tenth. Remember: SOHCAHTOA 21
A²+B²= C²
31²+ 21²= z²
961+441 = z²
1402= z²
z= 37.443290454
4. Draw a coordinate grid from -10 to 10 on both axes. Using table of the same grid.
(i) y=x-4
(ii) y=2 x-4
(iii) y=3 x-4
The linear functions for this problem are graphed on the image given at the end of the answer.
How to graph the linear functions?The slope-intercept definition of a linear function is given as follows:
y = mx + b.
In which the parameters are given as follows:
m is the slope, representing by how much y changes when x is increased by one.y is the intercept, representing the value of y of the function when it's graph crosses the y-axis.Hence the functions in this problem are graphed as follows:
y = x - 4: when x = 0, y = -4, when x increases by one, y increases by one.y = 2x - 4: when x = 0, y = -4, when x increases by one, y increases by two.y = 3x - 4: when x = 0, y = -4, when x increases by one, y increases by three.More can be learned about linear functions at https://brainly.com/question/24808124
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What is the solid formed when rotated around the side length of 5?
O two cones with a radius of 2.4 units and a height of 1.8 units and 3.2 units
O two cones with a radius of 3.6 units and a height of 1.8 units and 3.2 units
O two cylinders with a radius of 2.4 units and a height of 2.6 units and 2.8 units
O two cylinders with a radius of 3.6 units and a height of 1.6 units and 2.8 units
Find the volumes and surface areas of the solids. Give your answers in terms of pi
The solid formed when the right triangle is rotated around the side length of 5 is two cones with a radius of 1.5 units and a height of 1.8 units and 3.2 units.
The volume of the smaller cone is approximately 3.82 cubic units, and the surface area is approximately 20.94 square units.
The volume of the larger cone is approximately 6.04 cubic units, and the surface area is approximately 20.94 square units.
We have,
When the right triangle is rotated around the side length of 5, it forms two cones with different heights and radii.
Now,
r = base / 2 = 3 / 2 = 1.5 units
h = height = 4 units
Using the Pythagorean theorem,
l = √(1.5² + 4²) = √(18.25) ≈ 4.27 units
The first cone has a radius of 1.5 units and a height of 1.8 units (5 - 4.27)
The second cone has a radius of 1.5 units and a height of 3.2 units (5 - 1.8).
Now,
The volume of a cone.
V = (1/3)πr^2h
The surface area of a cone.
A = πrl + πr^2
For the first cone:
V = (1/3)π(1.5)²(1.8) = 3.82 cubic units
A = π(1.5)(4.27) + π(1.5)² = 20.94 square units
For the second cone:
V = (1/3)π(1.5)²(3.2) = 6.04 cubic units
A = π(1.5)(4.27) + π(1.5)² = 20.94 square units
Thus,
The solid formed when the right triangle is rotated around the side length of 5 is two cones with a radius of 1.5 units and a height of 1.8 units and 3.2 units.
The volume of the smaller cone is approximately 3.82 cubic units, and the surface area is approximately 20.94 square units.
The volume of the larger cone is approximately 6.04 cubic units, and the surface area is approximately 20.94 square units.
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Please explain the meaning of free semigroup based on the following quote with another explanation that is easier to understand. And give an example?
A free semigroup is a collection of all possible finite sequences of symbols generated by a set of symbols, where the multiplication operation is concatenation of such sequences.
A free semigroup is a semigroup that is generated by a set of symbols, where the multiplication operation is defined as concatenation of finite sequences of symbols. In other words, a free semigroup is a collection of all possible finite sequences of symbols, where the multiplication operation is concatenation of such sequences.
The "free" in "free semigroup" comes from the idea that there are no restrictions on how the elements of the semigroup are combined, as long as they are concatenated in a finite sequence. There are no additional relations or rules imposed on the multiplication operation, which makes it "free" in the sense that the operation is determined solely by the set of symbols being used.
For example, consider the set of symbols {a, b}. The free semigroup generated by this set would consist of all possible finite sequences of the symbols a and b, including the empty sequence (). The multiplication operation would be defined as concatenation of sequences, such that (a, b)(b, a, b) = (a, b, b, a, b). Note that there are no additional rules or relations imposed on the multiplication operation.
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A number cube numbered 1-6 is rolled 30 times and lands on an even number 18 times.
How does this frequency compare to the expected frequency based on the probability of
the number cube landing on an even number?
The frequency is 15 more than expected.
The frequency is 13 more than expected.
The frequency is 9 more than expected.
The frequency is 3 more than expected.
Done →
Given statement solution is :- The correct answer is: The frequency is 3 more than expected.
To determine the expected frequency of landing on an even number when rolling a fair six-sided number cube, we need to calculate the probability of landing on an even number and multiply it by the total number of rolls.
The number cube has six possible outcomes: 1, 2, 3, 4, 5, and 6. Of these, three are even numbers: 2, 4, and 6. Therefore, the probability of rolling an even number is 3/6, which simplifies to 1/2 or 0.5.
The expected frequency can be found by multiplying the probability by the total number of rolls:
Expected frequency = Probability of landing on an even number × Total number of rolls
Expected frequency = 0.5 × 30 = 15
Now, we can compare the expected frequency (15) to the actual frequency (18) given in the problem statement.
The actual frequency is 18, and it is 3 more than the expected frequency (18 - 15 = 3).
Therefore, the correct answer is: The frequency is 3 more than expected.
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Using the integers −9 to 9 at most one time each, place a digit in each box ( ___ , ____) and. ( ___ , ____) to create endpoints for the longest possible line segment both numerically and graphically whose midpoint is (1, 3)
Using the integers −9 to 9 at most one time each, place a digit in each box (1, 3) and (9, 3) or (-9, 3) to create endpoints for the longest possible line segment both numerically and graphically whose midpoint is (1, 3).
To find the endpoints of the longest possible line segment with midpoint (1, 3), we can use the midpoint formula, which states that the midpoint of a line segment with endpoints (x₁, y₁) and (x₂, y₂) is ((x₁+x₂)/2, (y₁+y₂)/2).
In this case, we know the midpoint is (1, 3), so we can set up two equations using the variables for the endpoints (x and y) and solve for them:
(x₁ + x₂)/2 = 1
(y₁ + y₂)/2 = 3
We also know that the line segment must be as long as possible, so the endpoints should be as far away from each other as possible. To maximize the distance between the endpoints, we can choose one endpoint to be -9 and the other endpoint to be 9. This gives us:
(x₁ + x₂)/2 = 1 => x₁ + x₂ = 2
(y₁ + y₂)/2 = 3 => y₁ + y₂ = 6
Now we can solve for x₁ and y₁, since x₂ and y₂ will be 2-x₁ and 6-y₁ respectively:
x₁ + (2-x₁) = 2 => x₁ = 1
y₁ + (6-y₁) = 6 => y₁ = 3
So the endpoints of the longest possible line segment with midpoint (1, 3) are (1, 3) and (9, 3) or (-9, 3), and its length is 8 units.
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Alix is 6 inches shorter thelan Ben. Alix is p inches tall. Write an expression to show how tall Ben is
Answer:
p+6
Step-by-step explanation:
the tables represent two linear functions in a system. what is the solution to this system?
Answer: The solution is the point (-14, -54)
Step-by-step explanation:
When we have a system of linear equations like:
y = a*x + b
y = c*x + d
The solution of this system is the point (x, y) that is a solution for both equations, if we graph the lines, this point would be the point where the lines intersect.
To start with this, we need to find the equations of the lines, we will use the following:
A linear relationship can be written as:
y = a*x + b
where a is the slope and b is the y-axis intercept.
For a line that passes through the points (x1, y1) and (x2, y2), the slope can be written as:
a = (y2 - y1)/(x2 - x1).
Now, for the first table, we can use the points: (-3, -10) and (0, 2)
The slope of this line is:
a = (2 - (-10))/(0 - (-3)) = 12/3 = 4
then we have:
y = 4*x + b
To find the value of b, we can just replace one of the points in the equation, for example, we can use the point (0, 2), this means that we need to replace x by 0, and y by 2.
2 = 4*0 + b
2 = b
Then the equation for the first table is y = 4*x + 2
For the second table, we can use the points (0, -12) and (3, - 3)
Then the slope is:
a = (-3 - (-12))/(3 - 0) = 9/3 = 3
Then we have:
y = 3*x + c
And to find the value of c, we can do the same as before, now we use the point (0, -12) then:
-12 = 3*0 + c
-12 = c
Then the equation for this line is:
y = 3*x - 12
The system of linear equations is then:
y = 4*x + 2
y = 3*x - 12
To find the solution of the system, we must have that y = y, then we can write:
4*x + 2 = y = 3*x - 12
4*x + 2 = 3*x - 12
Now we can solve this for x.
4*x - 3*x = -12 - 2
x = -14
x = -14
Now we can replace this in one of the equations to find the value of y.
y = 3*(-14) - 12 = -54
Then the solution is the point (-14, -54)
PLEASE HELP ME ANSWERING THIS QUESTION!!
What is f(g(13))?
A. 16
B. 26
C. 32
D. The function is undefined.
A mapping diagram is shown.
Rules answering this question:
⇒ Please explain your answer!
⇒ Show your work!
⇒ Nonsense answer will be reported.
⇒ Incorrect answer will be reported and deleted.
⇒ Do not spam answers, if you do, it automatically reported and delete your answers!
⇒ The answer should be one option only.
Thank you!
\(f(g(13)) = f( \alpha ) \\ where \: \alpha = g(13)\)
As shown in the output of g when we want to input 13 is shown in the second figure.
\( \alpha = g(13 )= 16\)
Now we want to solve for f(g(13)),now that we know what g(13) is
\(f(g(13)) = f( \alpha ) = f(16) = 32\)
AnswerC 32Answer:
C=32
Step-by-step explanation:
This mapping is both one to one mapping and onto mapping
f(g(13))=f(ã)
since we know that g(13),we proceed to the codomain of g which is g(16)
That will be
f(16)=32
Factor out the coefficient of the variable term. The expression 1/7a + 1/7 factored is___
Answer:
17 and [a+1] is the factor
Step-by-step explanation:
Given:
1/7a + 1/7
Find:
Factor
Computation:
1/7a + 1/7
By taking 1/7 as a common
1/7[a+1]
So,
17 and [a+1] is the factor
The coefficient of the variable term in factored form is; 1
The given expression is;
(1/7)a + 1/7
Now, we want to factorize this and this means that we will bring out the common factor of both terms.
The common factor of both terms is 1/7. Thus, we have;
(1/7)(a + 1)
The variable term is a and as such we see that it's coefficient inside the bracket is 1.
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PLZ ANSWER FAST (40 POINTS + BRAINLIEST)
Rewrite the expression y 2/3 as a radical expression.
Answer:
\(\sqrt[3]{y^2}\)Step-by-step explanation:
Rewrite the expression y^2/3 as a radical expression.
if n is a positive integer that is greater than x and a is a real number or a factor, then aˣ/ⁿ = \(\sqrt[n]{a^x}\)
use the rule to convert y²/₃ to a radical
where a =, x =, and n =.
therefore, the radical expression is \(\sqrt[3]{y^2}\)
A .14kg baseball is dropped from rest. It has a momentum of .78kg x m/s just before it lands on the ground. For what amount of time was the ball in the air?
Answer
what r the options? a b c d?????
i wuld say it is 2.5
Step-by-step explanation:
Whats 743x4824
and also comment if you have a discord account and if you do comment what it is
Answer:
3584232 || N o- t h x—?
Step-by-step explanation:
Answer:
3584232
Step-by-step explanation:
Yes I do its Sunju #5984
In the figure CE=34 cm and DE=30 cm. What is the radius of the circle?
The radius divides the diameter into 2, and the radius of the circle is 16 units
How to determine the radius?The radius of the circle and the tangent line meet at a right angle.
This means that:
CE² = r² + DE² ------ Pythagoras theorem
So, we have:
34² = r² + 30²
Evaluate the squares
1156 = r² + 900
Rewrite as:
r² = 1156 - 900
Evaluate
r² = 256
Take the square root of both sides
r = 16
Hence, the radius of the circle is 16 units
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find the domain and range
Answer:
Domain) all x
Range) 1
Step-by-step explanation:
The domain is the x values and the range is the y values
In this case anything could be x, and y can only be 1
What times what equals -7
Answer:
-7 x 1
hope that helped <3
-7 times one is equal to minus seven.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
We need to find what times what is -7.
Whenever we see a times in an expression its nothing but multiplication.
Multiplication is a method of finding the product of two or more numbers
We need to find the two numbers whose product will be equal to minus seven.
We know that there is only one possibility.
-7×1=-7
and 1×-7=-7
Hence ,-7 times one is equal to minus seven.
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Suppose a company's revenue function is given by R(q) = - q^3 + 220q^2 and its cost function is given by C(q) = 500 + 13q, where q is hundreds of units sold/produced, while R(q) and C(q) are in total dollars of revenue and cost, respectively.
A) Find a simplified expression for the marginal profit function. (Be sure to use the proper variable in your answer.)
MP(q) =
B) How many items (in hundreds) need to be sold to maximize profits? (Round your answer to two decimal places.)
Answer:
A) MP(q) = -3q² + 440q - 13
B) 146.64 units.
Step-by-step explanation:
The profit function is given by the revenue minus the cost function:
\(P(q) = R(q) - C(q)\\P(q) = -q^3+220q^2-500-13q\)
A) The Marginal profit function is the derivate of the profit function as a function of the quantity sold:
\(P(q) = -q^3+220q^2-500-13q\\MP(q) = \frac{dP(q)}{dq} \\MP(q)=-3q^2+440q-13\)
B) The value of "q" for which the marginal profit function is zero is the number of items (in hundreds) that maximizes profit:
\(MP(q)=0=-3q^2+440q-13\\q=\frac{-440\pm \sqrt{440^2-(4*(-3)*(-13))} }{-6}\\q'=146.64\\q'' = - 0.03\)
Therefore, the only reasonable answer is that 146.64 hundred units must be sold in order to maximize profit.
Determine the equation of the inverse of y = e x + 3 - 4
Answer:it would be a
Step-by-step explanation:
I got it right on odseyware
Simplify the expression
Hello User!
Answer:
\(a^{9}/8\)
Last one is your answer
What operation would isolate the variable? X + 8 = 14
Answer:
X = 6
Step-by-step explanation:
X + 8 = 14 * Subtract 8 from both sides so that
-8 -8 the 8 is cancelled out
_________
X + 0 = 6
A - on the po boyds at a emase the foot, 1, of building. He. Observes an obje- et on the top, P of the building at an angle of ele- building of 66 Aviation of 66 Hemows directly backwards to new point C and observes the same object at an angle of elevation of 53° · 1P) |MT|= 50m point m Iame horizontal level I, a a
Answer:
53\(x_{123}\) == 134 cf
Step-by-step explanation:
A - on the po boyds at a emase the foot, 1, of building. He. Observes an obje- et on the top, P of the building at an angle of ele- building of 66 Aviation of 66 Hemows directly backwards to new point C and observes the same object at an angle of elevation of 53° · 1P) |MT|= 50m point m Iame horizontal level I, a a
The height of the building is approximately 78.63 meters.
The following is a step-by-step explanation of how to solve the problem. We'll need to use some trigonometric concepts and formulas to find the solution.
Draw a diagram of the situation described in the problem to get a better understanding of the problem. The diagram would have a right-angled triangle with angle of elevation of 66° at the bottom left vertex and another angle of elevation of 53° at the bottom right vertex. The object on top of the building is at the vertex of the triangle. Point M and I on the diagram are points on the horizontal line of sight and on the ground respectively. We can label the diagram with the following values:Angle of elevation from point A = 66°Angle of elevation from point P = 53° Length of line segment AM = h Length of line segment MP = x Length of line segment IP = y Length of line segment MT = 50m. We'll use these values to calculate the length of h, which is the height of the building.Use the tangent ratio to find x:tan 66° = h / x => x = h / tan 66°. Use the tangent ratio to find y:tan 53° = h / y => y = h / tan 53°.We know that x + y = 50, so substituting the expressions for x and y from step 3 gives:h / tan 66° + h / tan 53° = 50h = 50 tan 66° tan 53° / (tan 53° + tan 66°) ≈ 78.63 m.Therefore, the height of the building is approximately 78.63 meters.
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Here is Takeshi's work determining a third point on the graph of an exponential function, `h(x)`.
Explain why the work is incorrect.
Answer:
Step-by-step explanation:
Let h(x) = y
The exponentail function is of the form :
\(y = ab^x\)
We have :
\(y_{_1} = ab^{x_{_1}}\\y_{_2} = ab^{x_{_2}}\\\\\implies \frac{y_{_1}}{y_{_2}} = \frac{ab^{x_{1}}}{ab^{x_{2}}} \\\\\implies \frac{y_{_1}}{y_{_2}} = \frac{b^{x_{1}}}{b^{x_{2}}} \\\\\implies \frac{y_{_1}}{y_{_2}} = b^{(x_1-x_2)}\)
Given points : (4, 9) and (5, 34.2)
We have:
\(\frac{34.2}{9} = b^{(5-4)}\\\\\implies 3.8 = b\)
Writing the equation with x, y and b:
\(y = ab^x\\\\\implies 9 = a(3.8^4)\\\\a = \frac{9}{3.8^4} \\\\a = 0.043\)
a = 0.043
b = 3.8
When x = 6, y will be:
\(y = (0.043)(3.8^6)\\\\y = 128.47\)
This is not the y value in the question y = 59.4
Therefore (6, 59.4) does not lie on the graph h(x)
1. What is the probability that someone likes tea?
a) 26/62
b) 16/62
c) 24/62
d) 27/62
Answer:
D) 27/62
Step-by-step explanation:
Since the question does not ask for a person that ONLY likes tea, you would use all the numbers within the tea circle. So, you would add 16, 2, 8, and 1 together to get the answer of 27/62.
The base of an above ground pool is a regular octagon. each side of the base is 5 feet long, and the height of the pool is 6 feet. What is the volume of the pool?
Answer:
724.26 cubic feet----------------------------
Calculate the area of the octagon base and then multiply it by the height of the pool.
The area of a regular octagon can be found using the formula:
A = 2s²(1 + √2), where s - side of the octagonPlugging this value into the formula:
A = 2 * 5² * (1 + √2) = 2 * 25 * (1 + 1.414) ≈ 120.71 square feetFind the volume of the pool by multiplying the base area by the height:
V = Ah = 120.71 * 6 ≈ 724.26 cubic feetis 14 a polynomial or a non-polynomial
is x+1 a polynomial or a non-polynomial
is 14 vx a polynomial or a non-polynomial
is x-2 -2x+4 a polynomial or a non-polynomial
Answer:
14 is a polynomial.
x+1 is a polynomial.
14vx is not a polynomial.
x-2 -2x+4 is a polynomial.
14 is a polynomial, x+1 is a polynomial, 14vx is not a polynomial, x-2 -2x+4 is a polynomial.
A polynomial is an equation made up of indeterminates and coefficients that only uses addition, subtraction, multiplication, and positive-integer powers of variables.
Polynomials are algebraic expressions with indeterminates and constants in them. Polynomials can be thought of as a mathematical dialect. They are used to express numbers in practically every subject of mathematics and are quite significant in others, such as calculus.
Polynomials cannot include the following:
Variables with negative or fractional exponents.Variables in the numerator.Variables that fall under a radical.Special characteristics. (trig functions, absolute values, logarithms, and so on).To know more about Polynomials,
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Evaluate the expression for s = 10, t = –2, and u = 9.
t2u + s = ?
Answer:
46
Step-by-step explanation:
You want to evaluate the expression t²u+s for t=-2, u=9, s=10.
Evaluating an expressionPut the numbers in the places of the corresponding variables, and do the arithmetic.
(-2)²·9 +10 = 4·9 +10 = 36 +10 = 46
The value of the expression is 46.
Pythagorean Theorem with Known Legs
Answer:
√52
Step-by-step explanation:
6^2 = 36
4^2 = 16
a. b
√36 + √16 = c
c = √52
Step-by-step explanation:
2
\(2 \sqrt{13 } \)
Francis used the distributive property of multiplication to help him solve the equation 6 x 2 = ________. Francis did not get the same answer for each side of the expression. Explain the steps required to correct his mistake.
Answer:
12
Step-by-step explanation:
well i dont get the qiustion but i can explain it
6x2=12
12/2=6
so
12 is the answer this is the best it can explain it