Answer:
753
Step-by-step explanation:
Minimum of f(x) = x 4 + x 3 + 3x 2 + 12x + 6
Answer: All you need to do is differentiate wrt x and equate to zero. The solutions are either maxima or minima.
Given expression = 2x^3 - 3x^2 - 12x +18
Differential wrt x = 6x^2 - 6x - 12 = 0 At the extrema points, the slopes of the function are zero.
The solutions are x=2 and x=-1 each of which are either maxima or minima.
To find out which is maximum and which is minimum, differntiate again wrt x
2nd Differential = 12x-6.
Now at x=2, 12x-6 is positive, so the minimum is here = 2(8)-3(4)-12(2)+18 = -2
At x=-1, 12x-6 is negative, so the maximum is here = 2(-1)-3(1)-12(-1)+18 = 25
Find the area of the shape shown below.
Answer:
The answer is 32
Step-by-step explanation:
The formula for finding the area of a trapezoid is:
((base 1 + base 2)/ 2 )* h
Now all you have to do is substitute the numbers in.
Note: bases will always be the ones like 12 and 4 in this case. We have just named then 1 and 2.
Answer:
32 square units
Step-by-step explanation:
\(\displaystyle A=\frac{1}{2}(b_1+b_2)h=\frac{1}{2}(12+4)(4)=\frac{1}{2}(16)(4)=\frac{1}{2}(64)=32\)
Note that \(b_1\) and \(b_2\) are the lengths of each base of the trapezoid, so it doesn't matter which is which.
Help me thank you :(
Answer:
m=3
y(-2/3, 2)
Step-by-step explanation:
For each of the following vector fields
F, decide whether it is conservative or not by computing the appropriate first order partial derivatives. Type in a potentialfunction f (that is, ∇f = F) with f(0,0)=0. If it is not conservative, type N.
A. F(x,y)=(−16x+2y)i+(2x+10y) j f(x,y)= _____
B. F(x,y)=−8yi−7xj f(x,y)=_____
C. F(x,y)=(−8sin y)i+(4y−8xcosy)j f(x,y)=_____
(A)
\(\dfrac{\partial f}{\partial x}=-16x+2y\)
\(\implies f(x,y)=-8x^2+2xy+g(y)\)
\(\implies\dfrac{\partial f}{\partial y}=2x+\dfrac{\mathrm dg}{\mathrm dy}=2x+10y\)
\(\implies\dfrac{\mathrm dg}{\mathrm dy}=10y\)
\(\implies g(y)=5y^2+C\)
\(\implies f(x,y)=\boxed{-8x^2+2xy+5y^2+C}\)
(B)
\(\dfrac{\partial f}{\partial x}=-8y\)
\(\implies f(x,y)=-8xy+g(y)\)
\(\implies\dfrac{\partial f}{\partial y}=-8x+\dfrac{\mathrm dg}{\mathrm dy}=-7x\)
\(\implies \dfrac{\mathrm dg}{\mathrm dy}=x\)
But we assume \(g(y)\) is a function of \(y\) alone, so there is not potential function here.
(C)
\(\dfrac{\partial f}{\partial x}=-8\sin y\)
\(\implies f(x,y)=-8x\sin y+g(x,y)\)
\(\implies\dfrac{\partial f}{\partial y}=-8x\cos y+\dfrac{\mathrm dg}{\mathrm dy}=4y-8x\cos y\)
\(\implies\dfrac{\mathrm dg}{\mathrm dy}=4y\)
\(\implies g(y)=2y^2+C\)
\(\implies f(x,y)=\boxed{-8x\sin y+2y^2+C}\)
For (A) and (C), we have \(f(0,0)=0\), which makes \(C=0\) for both.
Define sets U, A, B, and C as shown below. Find (AUB) nC. U=(a,b,c,d,e,f.g.h} A = {c,e,f} B=(a,e,f C = {a,b,d,g,h}
A.) (AUB)'nC={}
The solution is, A'n (BUC')= {a}
What is set?A set is a collection of objects that have something in common or follow a rule. The objects in the set are called its elements.
here, we have,
You want the set A'∩(B∪C') given the definitions of each of the sets U, A, B, C.
Inverse sets
The inverse of a set is the set of elements of the universal set that are NOT in the given set.
A' = {a, b, c, d, e, f, g, h} - {f, g, h} = {a, b, c, d, e}
C' = {a, b, c, d, e, f, g, h} - {a, b, c, d, e} = {f, g, h}
Union
The union of two sets is the list of elements in either of the two sets.
B∪C' = {a, g, h} +{f, g, h} = {a, f, g, h}
Intersection
The intersection of two sets is the list of elements common to both:
A'∩(B∪C') = {a, b, c, d, e} ∩ {a, f, g, h} = {a}
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How much? I say 80 what do you think?
Answer:
Yes, I agree
It is $80
-45.6 divided (-1.2)
Answer:38
Step-by-step explanation:just cause its correct
5 plus the product of 39 and a number e
The required solution is 5+39e.
What is arithmetic?
The branch of mathematics dealing with the properties and manipulation of numbers. a science that deals with the addition, subtraction, multiplication, and division of numbers. Fractions, decimals, percentages, fractions, square root, exponents, and other arithmetic operations are used to achieve mathematical simplifications
Given :
Write down the question as an algebra problem, with the unknown as X
The unknown is a number plus 5, so we write it as (X+5). The product is four times (X+5), so we write it as 39(X+5). Set it equal to e, as per the question, 5+39e
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Question 3 of 10
What is the equation of the following line? Be sure to scroll down first to see
all answer options.
The equation of the line passing through two points (0, 0) and (4, -2) is y = -x/2
What is an equation of the line?The general equation of a line in two variables of the first degree is represented as Ax + By +C = 0, A, B ≠ 0 where A, B and C are constants which belong to real numbers.
Given is a line passing through two points (0, 0) and (4, -2), we need to find the equation of the line,
We know that the equation of the line, passing through two points (x₁, y₁) and (x₂, y₂), is given by:
y-y₁ = y₂-y₁ / x₂-x₁ (x-x₁)
Here, (x₁, y₁) and (x₂, y₂) are (0, 0) and (4, -2), putting the values to finding the equation,
y-0 = -2-0 / 4-0 (x-0)
y = -1/2(x)
y = -x/2
Hence, the equation of the line passing through two points (0, 0) and (4, -2) is y = -x/2
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The average hotel price in Moscow is $216 per night with a standard deviation of $32. The average hotel price in Cancun is $161 per night with a standard deviation of $22. The average hotel price in Bangkok is $100 per night with a standard deviation of $17. A room at the Emerald Hotel in Moscow costs $200 per night, a room at the Ocean View Hotel in Cancun costs $183 per night, and a room at the Emperor Hotel in Bangkok costs $120 per night.
Required:
Which hotel is more expensive compared to other hotels in its city?
Answer:
The Emperor Hotel in Bangkok has the higher z-score, so it is more expensive compared to other hotels in its city.
Step-by-step explanation:
Z-score:
In a set with mean \(\mu\) and standard deviation \(\sigma\), the zscore of a measure X is given by:
\(Z = \frac{X - \mu}{\sigma}\)
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question:
The most expensive hotel has the higher z-score. So
Emerald Hotel in Moscow:
Costs $200, which means that \(X = 200\)
The average hotel price in Moscow is $216 per night with a standard deviation of $32, which means that \(\mu = 216, \sigma = 32\). So
\(Z = \frac{X - \mu}{\sigma}\)
\(Z = \frac{200 - 216}{32}\)
\(Z = -0.5\)
Ocean View Hotel in Cancun
Costs $183, which means that \(X = 183\).
The average hotel price in Cancun is $161 per night with a standard deviation of $22, which means that \(\mu = 161, \sigma = 22\). So
\(Z = \frac{X - \mu}{\sigma}\)
\(Z = \frac{183 - 161}{22}\)
\(Z = 1\)
Emperor Hotel in Bangkok
Costs $120, which means that \(X = 120\).
The average hotel price in Bangkok is $100 per night with a standard deviation of $17, which means that \(\mu = 100, \sigma = 17\). So
\(Z = \frac{X - \mu}{\sigma}\)
\(Z = \frac{120 - 100}{17}\)
\(Z = 1.18\)
The Emperor Hotel in Bangkok has the higher z-score, so it is more expensive compared to other hotels in its city.
Ted is saving for a toy. He has no money now, but
he figures that if he saves $D per week for the next
4 weeks he will have $1 more than he needs for the
toy. Write an expression for the cost of the toy Ted
wants to buy in terms of D. Explain.
Answer:
4D - 1
Step-by-step explanation:
So, if Ted saves $D for 4 weeks, then this amount will be equal to 4D because multiplication is simply repeated addition. We can imagine this situation as D+D+D+D, for the 4 weeks he is saving. We can simplify this to 4D in the expression.
Next, the question tells us that this will be 1 dollar more than needed. So, if we want to find the cost, we need to subtract that dollar.
Thus, the final expression is 4D - 1 because this represents 1 dollar less than the money he saves for 4 weeks.
I am struggling to find domain and range please help thank you
Answer:
Domain: 0, 1, 2, 3, 4,
Range: 1, 2, 3, 4, 5,
Step-by-step explanation:
Based on the graph the domain of the function is 0, 1, 2, 3, 4, and the range is 1, 2, 3, 4, 5, therefore, the answer is:
The arc length of a sector created by a 90° angle is 25 cm. What is the circumference of the entire circle? Express
the answer in terms of Pi
Answer:
We know length of one quarter of a circle = 2πr/4 = πr/2
So here we can make the equation for to find thr value of radius r
length of one quarter given = 25 cm
so πr/2 = 25 cm
=> πr = 50 cm
=> r = 50/π cm
So the entire circumference of circle =
2πr
= 2 π 50/π cm
= 100π/π cm (ans)
Here we dont substitute the value of π due to represent the answer in terms of pi.
Hope it helps you
The radius of a circle is 19 cm. Find the area
Answer: 1134.11
A=3.14*r^2
Step-by-step explanation:
Answer:
a ≈ 1134.11 cm2
Step-by-step explanation:
The formula:
\(a=\pi r^{2}\)
\(a=\pi (19)^{2} =361\pi\)
\(a=1134.11cm^{2}\)
Hope this helps
Find the critical value
χ2R
corresponding to a sample size of 5 and a confidence level of 99.0 percent
The critical value, given the sample size of 5 and the confidence level of 99. 0 percent would be 16. 812.
How to find the critical value ?The critical values for the chi-squared (χ^2) distribution depend on the degree of freedom and the level of significance.
The degree of freedom for a chi-squared distribution typically equals the sample size minus 1 so the degrees of freedom here is:
= 5 - 1
= 4
The level of significance would be:
= 1 - 99. 0 %
= 0. 01
The critical value of the sample would therefore be found on a chi -squared distribution table for df = 4 and α = 0.01 to be 16. 812.
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50 is times as much as
Answer:
i dont really understand this question though but ill try. Ok so 50 times, to say this you would have to take a number then multiply that number by 50 and you would get your answer. but this is the only way i think you could say 50 is times as much as.
Step-by-step explanation:
I hope this helped you in some way or form. :)
need help with this ASAP
!!!!!!!!!!!!!!!!!!!!!!!!
The fence in dead center is about 399 feet from the third base.
What is the Pythagorean Theorem?The Pythagorean Theorem states that in the case of a right triangle, the square of the length of the hypotenuse, which is the longest side, is equals to the sum of the squares of the lengths of the other two sides.
Hence the equation for the theorem is given as follows:
c² = a² + b².
In which:
c > a and c > b is the length of the hypotenuse.a and b are the lengths of the other two sides (the legs) of the right-angled triangle.For the triangle in this problem, we have that:
The sides are d ft and 90 ft.The hypotenuse is of 409 ft.Hence the distance is obtained as follows:
d² + 90² = 409²
\(d = \sqrt{409^2 - 90^2}\)
d = 399 ft.
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Two co- interior angles are in the ratio 5:7 find the angles
Answer:
75°
105°
Step-by-step explanation:
Two co-interor= 180°
5+7= 12
ratio12= 180°
{find the other ratios, 5 and 7)
12=180°
5×180÷12 = 75°
To find 7, just subtract 180-75= 105°
Which function has a greater maximum?
�
(
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=
−
2
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+
4
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2
+
1
f(x)=−2(x+4)
2
+1f, left parenthesis, x, right parenthesis, equals, minus, 2, left parenthesis, x, plus, 4, right parenthesis, squared, plus, 1
A coordinate plane. The x- and y-axes both scale by one. The graph is the function y equals g of x which is a parabola that opens down. The function increases through negative four, negative five and negative three, negative two. It has a maximum at negative two, one, then the function decreases through negative one, negative two and zero, negative five.
The function f(x) = \(-2(x+4)^2\) + 1 has a greater maximum.
1. The given function is f(x) = \(-2(x+4)^2\) + 1.
2. To find the maximum of the function, we need to determine the vertex of the parabola.
3. The vertex form of a quadratic function is given by f(x) = \(a(x-h)^2\) + k, where (h, k) represents the vertex.
4. Comparing the given function to the vertex form, we see that a = -2, h = -4, and k = 1.
5. The x-coordinate of the vertex is given by h = -4.
6. To find the y-coordinate of the vertex, substitute the x-coordinate into the function: f(-4) = \(-2(-4+4)^2\) + 1 = \(-2(0)^2\) + 1 = 1.
7. Therefore, the vertex of the function is (-4, 1), which represents the maximum point.
8. Comparing this maximum point to the information provided about the other function g(x) on the coordinate plane, we can conclude that the maximum of f(x) = \(-2(x+4)^2\) + 1 is greater than the maximum of g(x).
9. The given information about g(x) is not sufficient to determine its maximum value or specific equation, so a direct comparison is not possible.
10. Hence, the function f(x) =\(-2(x+4)^2\) + 1 has a greater maximum.
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Evaluate g(x) = 1.8x^3 − 0.0034x + 0.5 for x = 1 and x = 2.
2.2966; 14.8932
2.2966; 13.9068
1.3035; 13.8932
1.3035; 14.8932
Evaluating the function in the given values we will see that the correct option is the first one.
g(1) = 2.2966; g(2) = 14.8932
How to evaluate the polynomial function?Here we want to evaluate the function below:
g(x) = 1.8x^3 − 0.0034x + 0.5
in x = 1 and x = 2.
To do so, wejust needto replace the variableby the correspondent number, then we will get:
g(1) = 1.8*1^3 − 0.0034*1 + 0.5 = 2.2966
Andthe other value is:
g(2) =1.8*2^3 − 0.0034*2 + 0.5 = 14.8932
Then the correct option is the first one:
2.2966; 14.8932
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a chi-square test is calculated for the observed and expected numbers of progeny from a genetic cross. the probability associated with the chi-square value is 0.023. this is the probability that
The probability associated with the chi-square value of 0.023 in a chi-square test is the probability of obtaining the observed results, assuming that the expected results are true.
In other words, it is the probability of observing the deviation between the observed and expected values purely due to chance. A low probability value, such as 0.023, indicates that the deviation is unlikely to have occurred by chance, and suggests that there may be some other factor affecting the results of the genetic cross.
In this case, the researcher may reject the null hypothesis that the observed and expected values are in agreement, and conclude that there is a significant difference between the observed and expected values.
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Identify one example of each angle pair in the diagram to the right.
Alternate exterior angles are ∠9 and (∠1 + ∠2)
Consecutive interior angles are ∠7 and ∠4
Consecutive exterior angles are ∠9 and ∠∠3
Vertical angles are ∠2 and ∠5
Linear pairs are ∠7 and ∠8
We have,
Alternate exterior angles: Pairs of angles on opposite sides of a transversal line, formed by two parallel lines, and located outside the intersected lines.
Consecutive interior angles: Pairs of angles on the same side of a transversal line, formed by two parallel lines, and located between the intersected lines.
Consecutive exterior angles: Pairs of angles on the same side of a transversal line, formed by two parallel lines, and located outside the intersected lines.
Vertical angles: Pairs of non-adjacent angles formed by the intersection of two lines, sharing the same vertex and having equal measures.
Linear pair: A pair of adjacent angles formed by the intersection of two lines, sharing a common side, and whose measures add up to 180 degrees.
So,
Alternate exterior angles
= ∠9 and (∠1 + ∠2)
Consecutive interior angles
= ∠7 and ∠4
Consecutive exterior angles
= ∠9 and ∠∠3
Vertical angles
= ∠2 and ∠5
Linear pair
= ∠7 and ∠∠8
Thus,
Alternate exterior angles are ∠9 and (∠1 + ∠2)
Consecutive interior angles are ∠7 and ∠4
Consecutive exterior angles are ∠9 and ∠∠3
Vertical angles are ∠2 and ∠5
Linear pairs are ∠7 and ∠8
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Two families buy large sandwiches of the same size. Family A shares one sandwich equally among 4 people. family B shares one sandwich equally among 2 people. Will a person from Family A get the same amount or a different amount of a sandwich as a person from family B?
there's a drawing of 4 squares to represent the 4 ppl
Answer:
Different Amount
Step-by-step explanation:
4 is more than 2 and there would need to be 2 sandwiches in family a in order for them to be equal
WILL MARL BRAINLIEST THIS IS PT.3!!
Answer:
See problem 1 below.
Step-by-step explanation:
Problem 1.
1. <A, <D
Given
2. <1, <3
Given
3. BC is congruent to BC
Congruence of segments is reflexive.
4. ABC, DBC
AAS
How many and of which kind of roots does the equation f(x)=x4−2x3−11x2+12x+36 have?
we have the equation
f(x)=x^4-2x^3-11x^2+12x+36
using a graphing tool
the factors are
(x+2) ----> multiplicity 2
(x-3) -----> multiplicity 2
therefore
The answer is 4 real rootsoption C
A meal has 310 calories in 5 servings. Find the calories per serving.
Answer:
62
Step-by-step explanation:
Answer:
The meal has 62 calories per serving.
Step-by-step explanation:
310/5=62
f(x)=3^x+1 and g(x) = 2x-4, find f(2) - g(-1)
Answer:
16
Step-by-step explanation:
3^x +1 = f(X)
2x-4 = g(x)
find f(2)-g(-1)
we substitute in function f(X) by value (2), and in function g(X) by value (-1)
1. 3^x +1 becomes 3^2+1 =9+1=10
2. 2(-1)-4= -2-4=-6
then f(2)-g(-1)
= 10-(-6) =10+6=16
Select all that apply.
Answer: B, C, and E
Step-by-step explanation:
B and C are the same thing. And E will also work.
A will get you in the right quadrant, but the shape is wrong.
D will just get you back into the place you origianlly started at.
Marcus was interested in whether the frequency that students check emails impacts their grades in the class. He categorized students into three groups. Those who checked email daily, those who checked email at least 2x a week (but not every day), and those who checked email less than 2x a week. Below are the GPAs for the students he studied. Conduct the steps of hypothesis testing on these data.
Table of data: GPAs for students separated by how often they check their email
Daily 2x a week Less than 2x a week
3.6 3.5 2.9
3.5 3.4 3.0
3.7 3.2 3.2
4.0 3.2 2.7
The steps to conduct the steps of hypothesis testing on these data are:
State the null hypothesis (H0) as well as the alternative hypothesis (H1):Select the significance level (alpha): Select the right test statistic:Formulate the decision rule:Compute the test statistic as well as the p-value:Decide on a decision.What is the hypothesis?The hypothesis will be:
H0: Email frequency does not affect grades.H1: Email frequency affects grades.Since we are comparing (GPAs) of three groups (students who check e-mail day by day, students who check mail at least 2x a week, and students who check mail less than 2x a week), one can be able to make use of one-way analysis of variance (ANOVA) as the fitting test measurement.
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Will mark brainliest.
The solution is, the value of the variables are x = 40 and, y = 160.
Notice that "x" and "3x+20" are supplementary angles so their sum is 180°
(x) + (3x + 20) = 180
4x + 20 = 180
4x = 160
x = 40
To solve for "y", you have 2 options: either notice that "x" and "y-20" are supplementary angles so their sum is 180° or notice that "3x + 20" and "y - 20" are vertical angles so are equal to each other. I am going to solve using the first option because it is less work.
(x) + (y - 20) = 180°
40 + y - 20 = 180
y + 20 = 180
y = 160
Answer: x=40, y=160
The solution is, the value of the variables are x = 40 and, y = 160.
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complete question:
Find the value of each variable