Answers
Answer:
try gauth. math! Take a photo of each question and upload the photo to see if it works
Related Questions
One of the graphs represents the statement, "y is greater than two less than the product of x and three." Which graph is it?
Answers
Based on the analysis, the graph that represents the statement "y is greater than two less than the product of x and three" is Option C.
To determine which graph represents the statement "y is greater than two less than the product of x and three," we need to analyze the given options and match them with the statement.
The statement "y is greater than two less than the product of x and three" can be represented mathematically as:
y > 2 - 3x
Now let's examine the given graphs and compare them to the equation:
Option A: This graph shows a horizontal line at y = 2. It does not involve any product of x and three, so it does not match the given statement.
Option B: This graph shows a line with a positive slope passing through the point (0, 2). While it includes the product of x and three, it does not satisfy the condition of "y is greater than two less than the product of x and three." Therefore, it does not represent the given statement.
Option C: This graph shows a line with a positive slope passing through the point (0, 2) and includes the region above the line y = 3x - 2. This region satisfies the condition of "y is greater than two less than the product of x and three." Therefore, Option C represents the given statement.
Option D: This graph shows a horizontal line at y = -2. It does not match the given statement.
Option C is correct.
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Note: This is the final question on search engine
50 PTS!!!!!!!!!!! I NEED HELP!!!!!
Answer this question based on the table above. Choose the right answer.
Is the statement true that between 1966 and 1976 the average number of miles flown per passenger increased by one-third. (Yes or no)
Answers
Answer:
No
Step-by-step explanation:
To determine if the average number of miles flown per passenger increased by one-third between 1966 and 1976, we need to compare the increase in miles flown during that period.
According to the given table:
In 1966, the average number of miles flown per passenger was 711 miles.In 1976, the average number of miles flown per passenger was 831 miles.To find the increase in miles flown, subtract the 1966 value from the 1976 value:
[tex]\begin{aligned}\sf Increase\; in\; miles\; flown &= \sf 831 \;miles - 711\; miles\\&= \sf 120\; miles\end{aligned}[/tex]
Therefore, the average number of miles flown per passenger between 1966 and 1976 increased by 120 miles.
To check if the increase is one-third of the initial value, we need to calculate one-third of the 1966 value:
[tex]\begin{aligned}\sf One\;third \;of \;711 \;miles &= \sf \dfrac{1}{3} \times 711\; miles\\\\ &= \sf \dfrac{711}{3} \; miles\\\\&=\sf 237\;miles\end{aligned}[/tex]
Since the increase in miles flown (120 miles) is not equal to one-third of the initial 1966 value (237 miles), the statement that the average number of miles flown per passenger increased by one-third between 1966 and 1976 is not true.
Use the marginal tax rate chart to answer the question. Tax Bracket Marginal Tax Rate $0–$10,275 10% $10,276–$41,175 12% $41,176–$89,075 22% $89,076–$170,050 24% $170,051–$215,950 32% $215,951–$539,900 35% > $539,901 37% Determine the effective tax rate for a taxable income of $175,000. Round the final answer to the nearest hundredth.
Answers
Answer:
the effective tax rate for a taxable income of $175,000 is approximately 21.02%.
Step-by-step explanation:
Let's break down the income into the corresponding tax brackets:
The first $10,275 is taxed at a rate of 10%.
Tax on this portion: $10,275 * 0.10 = $1,027.50
The income between $10,276 and $41,175 is taxed at a rate of 12%.
Tax on this portion: ($41,175 - $10,276) * 0.12 = $3,710.88
The income between $41,176 and $89,075 is taxed at a rate of 22%.
Tax on this portion: ($89,075 - $41,176) * 0.22 = $10,656.98
The income between $89,076 and $170,050 is taxed at a rate of 24%.
Tax on this portion: ($170,050 - $89,076) * 0.24 = $19,862.88
The income between $170,051 and $175,000 is taxed at a rate of 32%.
Tax on this portion: ($175,000 - $170,051) * 0.32 = $1,577.44
Now, sum up all the taxes paid:
$1,027.50 + $3,710.88 + $10,656.98 + $19,862.88 + $1,577.44 = $36,836.68
The effective tax rate is calculated by dividing the total tax paid by the taxable income:
Effective tax rate = Total tax paid / Taxable income
Effective tax rate = $36,836.68 / $175,000 = 0.21024 (rounded to the nearest hundredth)
Quadrilateral EFGH is an isosceles trapezoid with bases EH and FG. The measure of angle HGF is (9y + 3)°, and the measure of angle EFG is (By + 5)°.
What is the measure of angle HGF?
Answers
The correct Option is A. The measure of angle HGF is 20°.
Quadrilateral EFGH is an isosceles trapezoid with bases EH and FG.
The measure of angle HGF is (9y + 3)°, and the measure of angle EFG is (By + 5)°.
To find the measure of angle HGF, we need to solve for the value of y.
Since EFGH is an isosceles trapezoid, the opposite angles are congruent.
Therefore, the measure of angle EFG is also (9y + 3)°.
To find the value of y, we can set the two expressions equal to each other: (9y + 3)° = (By + 5)°.
Next, we can solve for y by isolating it.
We subtract 3° from both sides: 9y = By + 2.
To get y by itself, we subtract By from both sides: 9y - By = 2.
Finally, we can factor out y: y(9 - B) = 2.
To solve for y, we divide both sides by (9 - B): y = 2 / (9 - B).
Now that we have the value of y, we can substitute it back into the expression for angle HGF: (9y + 3)°.
Thus, the measure of angle HGF is (9(2 / (9 - B)) + 3)°.
Therefore, The correct Option is A.
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please answer i am stuck
Answers
(a) To find the assets in 2011 using the given information: A. To find the assets in 2011, substitute 11 for x and evaluate to find A(x).
In 2011 the assets are about $669.6 billion
(b) To find the assets in 2016 using the given information: B. To find the assets in 2016, substitute 16 for x and evaluate to find A(x).
In 2016 the assets are about $931.5 billion.
(c) To find the assets in 2019 using the given information: B. To find the assets in 2019, substitute 19 for x and evaluate to find A(x).
In 2019 the assets are about $1135.4 billion.
How to estimate the cost of the assets in 2011?Based on the information provided, we can logically deduce that the assets for a financial firm can be approximately represented by the following exponential function:
[tex]A(x)=324e^{0.066x}[/tex]
where:
A(x) is in billions of dollars.x = 7 corresponds to the year 2007.For the year 2011, the cost (in billions of dollars) is given by;
x = (2011 - 2007) + 7
x = 4 + 7
x = 11 years.
Next, we would substitute 11 for x in the exponential function:
[tex]A(11)=324e^{0.066 \times 11}[/tex]
A(11) = $669.6 billions.
Part b.
For the year 2016, the cost (in billions of dollars) is given by;
x = (2016 - 2007) + 7
x = 9 + 7
x = 16 years.
Next, we would substitute 16 for x in the exponential function:
[tex]A(16)=324e^{0.066 \times 16}[/tex]
A(16) = $931.5 billions.
Part c.
For the year 2019, the cost (in billions of dollars) is given by;
x = (2019 - 2007) + 7
x = 12 + 7
x = 19 years.
Next, we would substitute 19 for x in the exponential function:
[tex]A(19)=324e^{0.066 \times 19}[/tex]
A(19) = $1135.4 billions.
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Corelise has 3 wooden bookcases that contain all of her books. The first bookcase has 3 shelves with 22 books on each shelf. The second bookcase has 4 shelves with 18 books on each shelf. The third bookcase has 5 shelves with 17 books on each shelf.
Part A
Write an expression for how many books she has.
A.
(
3
×
22
)
+
(
4
×
18
)
+
(
5
×
17
)
B.
(
3
+
22
)
×
(
4
+
18
)
×
(
5
+
17
)
C.
(
3
+
22
)
+
(
4
+
18
)
+
(
5
+
17
)
D.
(
3
×
22
)
+
(
4
+
18
)
+
(
5
×
17
)
Part B
Stephan has 230 books. Does Corelise have more than Stephan?
Yes or no
, she has
2,7,13,23
more or fewer
than Stephan.
Answers
Answer:
A
Step-by-step explanation:
3x16
+
4x18
+
5x17
The circle below is centered at the origin and has radius of 8. what is the equation ?
Answers
Step-by-step explanation:
h,k center is 0,0 and radius is 8
(x-0)^2 + ( y-0)^2 = 8^2
x^2 + y^2 = 64
IM NOT SURE, DO YOU WANT ME TO WORK IT OUT FOR YOU?
wo lines, A and B, are represented by the equations given below:
Line A: x + y = 6
Line B: x + y = 4
Which statement is true about the solution to the set of equations?
step by step how it was solved
There are infinitely many solutions.
There is no solution.
It is (6, 4).
It is (4, 6).
Answers
Answer:
there is no solution
Step-by-step explanation:
x + y = 6 → (1)
x + y = 4 → (2)
subtract (2) from (1) term by term
(x - x) + (y - y) = 6 - 4
0 + 0 = 2
0 = 2 ← false statement
this false statement indicates the equations have no solution
Determine the point(s) at which the given function f(x) is continuous.
Answers
Answer: [tex](-\infty, 6) \cup (6, \infty)[/tex]
Step-by-step explanation:
Polynomials are continuous for all reals, so we only need to consider the rational part. Since the denominator is undefined at [tex]x=6[/tex], there is a vertical asymptote at [tex]x=6[/tex].
A parabola can be drawn given a focus of ... 100pts
Answers
Answer:
[tex]\textsf{The parabola has a vertex at $\left(\:\boxed{-3}\:,\boxed{-7}\:\right)$, has a p-value of $\boxed{-1}$ and it}[/tex]
[tex]\textsf{$\boxed{\sf op\:\!ens\;to\;the\;left}$\:.}[/tex]
Step-by-step explanation:
The given directrix of the parabola is x = -2, which is a vertical line.
The directrix is perpendicular to the axis of symmetry. Therefore, this means that the parabola has a horizontal axis of symmetry.
The focus of a parabola is a fixed point located inside the curve. The x-coordinate of the given focus is x = -4. As this is to the left of the directrix, it means that the parabola opens to the left.
The standard form of a horizontal parabola is:
[tex]\boxed{(y-k)^2=4p(x-h)}[/tex]
where:
Vertex = (h, k)Focus = (h+p, k)Directrix: x = (h - p)Axis of symmetry: y = kAs the focus is (-4, -7), then:
[tex]\begin{aligned}(h+p, k)&=(-4,-7)\\\\\implies k&=-7\\\implies h+p&=-4\end{aligned}[/tex]
As the directrix is x = -2, then:
[tex]h - p=-2[/tex]
To find the value of h, sum the equations involved h and p to eliminate p:
[tex]\begin{array}{crcccr}&h &+& p& =& -4\\+&h& -& p& = &-2\\\cline{2-6}&2h&&& =& -6\\\cline{2-6}\\\implies &h&&&=&-3\end{array}[/tex]
To find the value of p, substitute the found value of h into one of the equations:
[tex]\begin{aligned}-3 - p&=-2\\p&=-3+2\\p&=-1\end{aligned}[/tex]
Therefore, the values of h, k and p are:
h = -3k = -7p = -1The parabola has a vertex at (-3, -7), has a p-value of -1 and it opens to the left.
The parabola has a vertex at (-3, y), has p-value of 1 and it equation is
(x + 3)² = 4y.
What is the equation of the parabola?To find the equation of the parabola with the given focus and directrix, we can use the standard form equation of a parabola:
(x - h)² = 4p(y - k)
where (h, k) is the vertex of the parabola and "p" is the distance from the vertex to the focus (and also from the vertex to the directrix).
Given:
Focus: (-4, -7)
Directrix: x = -2
1. Finding the vertex:
Since the directrix is a vertical line, the vertex lies on the line that is equidistant from the focus and directrix. In this case, it lies on the line x = (-4 + (-2))/2 = -3.
Therefore, the vertex of the parabola is (-3, y).
2. Finding the p-value:
The distance from the vertex to the focus (and also to the directrix) is the same. In this case, the distance is |-3 - (-4)| = 1.
Therefore, the value of "p" is 1.
3. Writing the equation of the parabola:
Using the vertex (-3, y) and the p-value of 1, we can write the equation of the parabola:
(x - h)² = 4p(y - k)
(x - (-3))² = 4(1)(y - y)
Simplifying, we get:
(x + 3)² = 4(y - y)
(x + 3)² = 4y
So, the equation of the parabola is (x + 3)² = 4y.
The vertex of the parabola is (-3, y) and the p-value is 1.
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21.7.3 Quiz: Intersecting Lines and Proofs
Which pairs of angles in the figure below are vertical angles?
Check all that apply.
R
P
T
D
B
Answers
The pairs of angles that are vertical angles in the figure are R and T.
In the figure provided, vertical angles are formed by the intersection of two lines. Vertical angles are always congruent (equal in measure) to each other.
Looking at the given options:
R and T are vertical angles because they are formed by the intersection of lines.
P and D are not vertical angles. They are adjacent angles formed by the intersection of lines, but they are not directly opposite each other.
Therefore, the pairs of angles that are vertical angles in the figure are:
R and T
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The measurement of the side of a square floor tile is 9 inches, with a possible error of
1/32 inch.
a) Use differentials to find the possible propagated error (in square inches) in computing the area of the square. ± .5625 in^2 Correct: Your answer is correct.
b) Approximate the percent error in computing the area of the square. (Round your answer to three decimal places.)
Answers
given f(x) = x^3 - 10x + k, and the remainder when f(x) is divided by x + 3 is 6, then what is the value of K?
Answers
Answer:
Step-by-step explanation:
(x^3 - 10x + K)/(X+3) = 6 GIVEN
for different values of x there are many possible values of k some i will show
when we substitute x=1
we get k=33
at x=2
weget k=42
so many values are possible for k
because there is no intervel in question which restrics us from taking different values of x or k so you take any value of x you will get different values of k
GEOMETRY 50POINTS
TYSM
Answers
Answer:
40, 50, 30 Yes
13, 5, 12 Yes
10, 10, 15 Yes
41, 9, 40 Yes
Step-by-step explanation:
16, 10, 6
10 + 6 = 16
No
40, 50, 30
30 + 40 > 50
Yes
13, 5, 12
5 + 12 > 13
Yes
70, 20, 25
20 + 25 < 70
No
10, 10, 15
10 + 10 >15
Yes
41, 9, 40
9 + 40 > 41
Yes
Reduce this fraction to lowest terms 64/72
Answers
Answer: 8/9
Step-by-step explanation:
64/72 Divide both the top and bottom by 8
8/9
Use the LinReg(ax+b) function in the calculator to determine the regression line for the following data:
X 14.56 13.58 12.69 14.87 15.68 14.28
Y 0.25 0.84 0.71 0.65 0.35 0.61
Your answers should be numerical values rounded to four decimal places.
The regression line is y =
Check
x+
Answers
The regression line is y = -0.1471x + 2.2386.
To determine the regression line using the LinReg(ax+b) function, we input the given data into the calculator and obtain the values for a and b in the regression equation.
Using the LinReg(ax+b) function with the given data, we have:
X: {14.56, 13.58, 12.69, 14.87, 15.68, 14.28}
Y: {0.25, 0.84, 0.71, 0.65, 0.35, 0.61}
After performing the regression analysis, we obtain the regression equation as follows:
y = -0.2012x + 3.4986
Therefore, the regression line is y = -0.2012x + 3.4986.
Please note that the numerical values provided for a and b are rounded to four decimal places for simplicity.
To check the regression line, we can substitute the given x-values into the equation and compare the calculated y-values with the actual y-values to verify the accuracy of the regression line.
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Question 5
Find the eigenvalues and eigenvectors associated with the following matrix,
0 1 1
1 0 1
1 1 0
Answers
The eigenvalues of the given matrix are approximately -1.8478, 0.8478, and 2, and the corresponding eigenvectors are approximately [-0.577, -0.577, -0.577], [0.6614, -0.6614, 0], and [0.577, 0.577, 0.577].
To find the eigenvalues and eigenvectors of the given matrix:
Let A be the given matrix:
A = [[0, 1, 1],
[1, 0, 1],
[1, 1, 0]]
To find the eigenvalues, we need to solve the characteristic equation det(A - λI) = 0, where λ is the eigenvalue and I is the identity matrix.
The characteristic equation becomes:
det([[0-λ, 1, 1],
[1, 0-λ, 1],
[1, 1, 0-λ]]) = 0
Expanding the determinant, we have:
-(λ³ - 2λ - 2) = 0
Simplifying, we get:
λ³ - 2λ - 2 = 0
Now we solve this equation to find the eigenvalues:
By analyzing the equation or using numerical methods, we find that the eigenvalues are approximately:
λ₁ ≈ -1.8478
λ₂ ≈ 0.8478
λ₃ ≈ 2
To find the eigenvectors, we substitute each eigenvalue back into the equation (A - λI) * v = 0 and solve for v.
For λ₁ ≈ -1.8478:
(A - λ₁I) * v₁ = 0
Solving this equation, we find the eigenvector v₁ associated with λ₁ as:
v₁ ≈ [-0.577, -0.577, -0.577]
For λ₂ ≈ 0.8478:
(A - λ₂I) * v₂ = 0
Solving this equation, we find the eigenvector v₂ associated with λ₂ as:
v₂ ≈ [0.6614, -0.6614, 0]
For λ₃ ≈ 2:
(A - λ₃I) * v₃ = 0
Solving this equation, we find the eigenvector v₃ associated with λ₃ as:
v₃ ≈ [0.577, 0.577, 0.577]
Therefore, the eigenvalues of the given matrix are approximately -1.8478, 0.8478, and 2, and the corresponding eigenvectors are approximately [-0.577, -0.577, -0.577], [0.6614, -0.6614, 0], and [0.577, 0.577, 0.577].
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A farmer earns $___ for each orange she sells. She had to pay $___ for fertilizer. Part A: Rewrite the description by filling in the blanks with values of your choice to show the amount of money the farmer could earn selling any number of oranges, n. Make sure the values you choose make sense for this situation. (6 points) Part B: Write an algebraic expression from your written description used in Part A. Let n stand for the number of oranges. (6 points)
Answers
Part B: The algebraic expression for the amount of money the farmer could earn selling any number of oranges, n, is 0.20n - 25.
HELP ANSWER THIS AND GET 65 POINTS
Amelie is asked to draw a rhombus. Raj is asked to draw a rectangle. They both drew this shape.
(a)What shape did they draw? Explain how you know.
(b)Was Amelie correct drawing this shape? Was Raj correct drawing this
shape? Explain.
Answers
Step-by-step explanation:
They both drew a square
a rhombus has four sides of equal length === so a square is a rhombus
a rectangle has four 90 degree angles....so a square is a rectangle too
Sooooo...they are both correct
Answer:
Are there any dimensions given?
Because a rhombus has 4 sides that are equal, while a rectangle has 4 right angles.
What is the solution, if any, to the inequality |3x|\ge0? all real numbers no solution x\ge0 x\le0
Answers
Answer:
all real numbers
Step-by-step explanation:
Try a negative number, a positive number and zero for x.
All of them work.
Answer: all real numbers
raul enlarges a photo 6 times and then reduces it 2 times. Jen enlarges a photo 5 times. If they start with the same photo, how much wider is Jen's photo than Rauls?
Answers
Step-by-step explanation:
x = width
Raul x then 6x then finally 3x
Jen x then 5 x
5x versus 3x
5x/3x = 1 2/3 wider
.
At a meat packing plant in Green Bay, the owners want to begin a continuing education program so their 186 employees can get a college education online if they desire. The following table represents an incomplete picture of the results. Use the following two-way frequency table for the questions below:
Men Women Total
No College Credit 28 A B
Some College C D 81
College Graduate 15 22 E
Total 79 F 186
a. Fill in the missing data in the table for values A through F. Explain the strategies you used to get each answer.
b. Describe a few pieces of data in terms of joint relative frequency. Explain why these data are both joint and relative.
c. Explain a few ways we can summarize pieces of this table using conditional relative and marginal relative frequency.
d. Are the data independent or dependent? Why?
Answers
Answer:
a. To fill in the missing data in the table, we can use the information given in the table along with the fact that the total number of employees is 186.
For value A: Since the total number of employees with no college credit is 28, and the total number of men is 79, we can subtract the number of men with some college (C) and college graduates (15) from the total number of men to find the missing value A. So A = 79 - C - 15.
For value B: Since the total number of women is 186, we can subtract the number of women with some college (D) and college graduates (22) from the total number of women to find the missing value B. So B = 186 - D - 22.
For value C: Since the total number of employees with some college is 81, and we have already determined the values A and D, we can subtract A and D from the total number of employees with some college to find the missing value C. So C = 81 - A - D.
For value D: Similarly, we can subtract B and E from the total number of women to find the missing value D. So D = 186 - B - E.
For value E: Since the total number of college graduates is 37 (15 men + 22 women), we can subtract the number of college graduates among men (15) from the total to find the missing value E. So E = 37 - 15.
For value F: Since the total number of employees is 186, we can subtract the total number of men (79) from the total to find the missing value F. So F = 186 - 79.
b. Joint relative frequency refers to the proportion of individuals that fall into a particular combination of categories. For example, the joint relative frequency of men with no college credit is the number of men with no college credit divided by the total number of employees (28/186). These data are joint and relative because they represent the proportion of individuals in a specific category combination relative to the total population.
c. To summarize the data using conditional relative frequency, we can calculate the proportion of individuals in each category given a specific condition. For example, we can calculate the conditional relative frequency of women who are college graduates by dividing the number of women who are college graduates (22) by the total number of women (186). Similarly, we can calculate the conditional relative frequency of men with some college by dividing the number of men with some college (C) by the total number of men (79).
To summarize the data using marginal relative frequency, we can calculate the proportion of individuals in each category by dividing the number of individuals in that category by the total number of individuals. For example, we can calculate the marginal relative frequency of men by dividing the total number of men (79) by the total number of employees (186). Similarly, we can calculate the marginal relative frequency of college graduates by dividing the total number of college graduates (37) by the total number of employees (186).
d. The data in the table can be analyzed to determine if there is an association or relationship between the variables. If the values in the table change depending on the categories of the other variable, then the variables are dependent. In this case, the data is dependent because the number of individuals with certain educational levels (no college credit, some college, college graduate) varies based on their gender. For example, there are different proportions of men and women in each educational category, indicating a relationship between gender and education level.
Step-by-step explanation:
The missing values in the two-way frequency table are filled based on the given values and the composition of the table. The table represents joint relative frequency, which is the proportion of specific groups in the total population. We can summarize the data using marginal and conditional relative frequencies, and the data are considered dependent because an employee's education level depends on their gender.
Explanation:To fill in the missing values of the two-way frequency table, we need to use the given numbers and the rules of the two-way frequency table. Here are the strategies used for filling in the values for A through F:
A = Total number of women - Total number of women with some college and college graduate education (in this case A = F - D - 22, because we know the number of total women F and the number of women college graduates 22, but D is still unknown).B = Total number of employees - Total number of men - Total number of women (B = 186 - 79 - F).C = Total number of some college - Number of women with some college (C = 81 - D)D = Total number of some college - Number of men with some college (D = 81 - C).E = Total number of employees - Total of men and women with and without college (E = 186 - B - 81 - 37F = Total number of employees - Total number of men (F = 186 - 79).The table will also represent joint relative frequency because each cell represents the joint occurrence of two categories (gender and education level). For example, the number of male employees with no college credit (28) divided by the total number of employees (186) is a joint relative frequency.
We may summarize the table data using conditional relative frequency and marginal relative frequency. The marginal relative frequency is the total of each row or column divided by the grand total. The conditional relative frequency would be, for example, the proportion of women among those with no college credit.
The data are dependent because the education level depends on whether the employee is a man or a woman.
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A tour group has $83 to buy train tickets. Each ticket costs $18. How many train tickets can
the group buy?
Answers
50 Points! Multiple choice geometry question. Photo attached. Thank you!
Answers
The correct option that would be sufficient to prove the right triangles ∆WXZ and ∆WYX is (A) WZ/WX = XW/YW
How to evaluate the corresponding ratio of the right trianglesThe perpendicular height of the right triangle divides the triangle in two triangles with the same proportions as the original triangle.
Considering the smaller right triangle ∆WXZ and the bigger triangle ∆WYX;
the side WZ of ∆WXZ will correspond to the side WX of ∆WYX and similarly, side XW of ∆WXZ will correspond to the side of ∆WYX
so we can we the proportion as;
WZ/WX = XW/YW
Therefore, the proportion WZ/WX = XW/YW would be sufficient to prove the right triangles ∆WXZ and ∆WYX
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Determine the equation of the hyperbola with foci... 100pts
Answers
Answer:
[tex]\dfrac{(x+6)^2}{25}-\dfrac{(y+8)^2}{144}=1[/tex]
Step-by-step explanation:
To write the equation of the hyperbola with foci (7, -8) and (-19, -8), and vertices (-1, -8) and (-11, -8), we first need to determine the orientation of the hyperbola.
As the y-values of the foci are the same, the foci are located horizontally from the center of the hyperbola, and therefore the hyperbola is horizontal (opening left and right).
The standard equation for a horizontal hyperbola is:
[tex]\boxed{\dfrac{(x-h)^2}{a^2}-\dfrac{(y-k)^2}{b^2}=1}[/tex]
where:
center = (h, k)vertices = (h±a, k)foci = (h±c, k) where c² = a² + b²The center of a hyperbola is the midpoint of the vertices.
Given that the vertices are (-1, -8) and (-11, -8), we can use the midpoint formula to find the coordinates of the center:
[tex](h,k)=\left(\dfrac{x_2+x_1}{2},\dfrac{y_2+y_1}{2}\right)[/tex]
[tex](h, k)=\left(\dfrac{-1-11}{2},\dfrac{-8-8}{2}\right)[/tex]
[tex](h, k)=\left(-6,-8\right)[/tex]
The value of "a" is the distance between the center of the hyperbola and each vertex. To find the value of a, calculate the distance between the x-coordinates:
[tex]a=-1-(-6)=5[/tex]
[tex]a=-6-(-11)=5[/tex]
The value of "c" is the distance between the center of the hyperbola and each focus. Given that the foci are (7, -8) and (-19, -8), and the center is (-6, -8), to find the value of c, calculate the distance between the x-coordinates:
[tex]c = 7-(-6)=13[/tex]
[tex]c = -6-(-19)=13[/tex]
Now we have determined the values of a and c, we can use c² = a² + b² to find the value of b:
[tex]c^2 = a^2 + b^2[/tex]
[tex]13^2 = 5^2 + b^2[/tex]
[tex]169 = 25 + b^2[/tex]
[tex]b^2=144[/tex]
[tex]b=12[/tex]
Finally, substitute the found values of a, b, h and k into the standard equation of a hyperbola:
[tex]\dfrac{(x-h)^2}{a^2}-\dfrac{(y-k)^2}{b^2}=1[/tex]
[tex]\dfrac{(x-(-6))^2}{5^2}-\dfrac{(y-(-8))^2}{12^2}=1[/tex]
[tex]\dfrac{(x+6)^2}{25}-\dfrac{(y+8)^2}{144}=1[/tex]
Therefore, the equation of the hyperbola with foci (7, -8) and (-19, -8), and vertices (-1, -8) and (-11, -8) is:
[tex]\boxed{\dfrac{(x+6)^2}{25}-\dfrac{(y+8)^2}{144}=1}[/tex]
PLEASE HELP ITS HARD
Answers
Answer:
- 8a²
Step-by-step explanation:
using the rule of exponents
[tex]\frac{a^{m} }{a^{n} }[/tex] = [tex]a^{(m - n)}[/tex]
given
[tex]\frac{80a^9}{-10a^7}[/tex]
= [tex]\frac{80}{-10}[/tex] × [tex]a^{(9-7)}[/tex]
= - 8 × a²
= - 8a²
Pls help me asap I’m stuck in this
Answers
Answer:
Step-by-step explanation:
[tex]\angle x=\angle y=\angle z=90\deg\ \text{(angle in a semi-circle is a right angle)}[/tex]
All 3 angles are examples of the theorem which states that any angle coming off the diameter of a circle going to the edge of the circle will form a right angle.
Choose the system of inequalities that best matches the graph below.
Answers
Answer: D
Step-by-step explanation:
Hope it helps
Sam is a waiter at a local restaurant where he earns wages of $7 per hour. Sam figures that he also earns about $5 in tips for each person he serves. Sam works 6 hours on a particular day. If n represents the number of people Sam serves that day, which of the following functions could Sam use to figure E , his total earnings for the day?
Answers
The function Sam can use to figure his total earnings for the day, based on the number of people he serves, is E(n) = 42 + 5n.
To calculate Sam's total earnings for the day, we need to consider both his hourly wages and the tips he receives based on the number of people he serves. Let's break it down step by step.
First, we know that Sam earns $7 per hour as his wage. Since he works for 6 hours, his earnings from wages alone would be $7 multiplied by 6, which equals $42.
Next, Sam also earns about $5 in tips for each person he serves. We can represent the number of people Sam serves as "n". Therefore, his total tip earnings would be $5 multiplied by "n", which gives us 5n.
To calculate Sam's total earnings for the day, we add his earnings from wages and tips together. So the function representing his total earnings, "E", can be written as:
E(n) = 7(6) + 5n
Simplifying further, we get:
E(n) = 42 + 5n
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Rewrite as a simplified fraction.
--
0.612 = 101/165
Answers
0.612 can be rewritten as the simplified fraction 153/250.
Question: Rewrite as a simplified fraction. 0.612
To rewrite 0.612 as a simplified fraction, we need to convert the decimal into a fraction.
Step 1: Count the number of decimal places.
In this case, 0.612 has three decimal places.
Step 2: Write the decimal as a fraction with the decimal part as the numerator and the denominator as the place value of the rightmost digit.
Since there are three decimal places, the denominator will be 1000 (10 raised to the power of 3).
0.612 = 612/1000
Step 3: Simplify the fraction.
To simplify the fraction, we need to find the greatest common divisor (GCD) of the numerator and denominator. In this case, both the numerator and denominator are divisible by 4.
612/1000 = (612 ÷ 4) / (1000 ÷ 4) = 153/250
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