A graph of the line whose x-intercept is 8 and whose y-intercept is 7 is shown below.
What is the slope-intercept form?In Mathematics and Geometry, the slope-intercept form of the equation of a straight line is given by this mathematical expression;
y = mx + c
Where:
m represents the slope or rate of change.x and y are the points.c represents the y-intercept or initial value.Mathematically, an intercept form of the equation of a standard line is given b;
x/a + y/b = 1
Where:
a and b are x-intercept and y-intercept respectively.
By substituting, we have:
x/8 + y/7 = 1
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Plis help I don’t have to do this plis !
Work out each of the following:
1) −5 − +23=
2) −16 + −15=
3) 40 − −40=
4) −18 − −27=
5) −52 + 90=
HELPPP PLEEEAAAASSSSEEEE!!!! :(
I need those answers before 09:30 pleeeaaaaassssseeee
What is the value of 45 x 104 =
_?
Answer:
4,680
Step-by-step explanation:
45 × 104 = 4,680I hope this helps!
1900 people attended a baseball game. 1691 of the people attending supported the home team while, 209 supported the visiting team what percentage of people attending supported the home team?
Let X∼Bin(n,p). Find E(e tX
) where t is a constant. [10 marks]
The required expectation of the probability distribution of a binomial distribution (X) is \(E(etX) = (1 - p + pe^t)^n\)
For a random variable X, we can calculate its moment-generating function by taking the expected value of \(e^(tX)\). In this case, we want to find the moment-generating function for a binomial distribution, where X ~ Bin(n,p).The moment-generating function for a binomial distribution can be found using the following formula:
\(M_X(t) = E(e^(tX)) = sum [ e^(tx) * P(X=x) ]\)
for all possible x values The probability mass function for a binomial distribution is given by:
\(P(X=x) = (n choose x) * p^x * (1-p)^(n-x)\)
Plugging this into the moment-generating function formula, we get:
\(M_X(t) = E(e^(tX)) = sum [ e^(tx) * (n choose x) * p^x * (1-p)^(n-x) ]\)
for all possible x values Simplifying this expression, we can write it as:
\(M_X(t) = sum [ (n choose x) * (pe^t)^x * (1-p)^(n-x) ]\)
for all possible x values We can recognize this expression as the binomial theorem with (pe^t) and (1-p) as the two terms, and n as the power. Thus, we can simplify the moment-generating function to:
\(M_X(t) = (pe^t + 1-p)^n\)
This is the moment-generating function for a binomial distribution. To find the expected value of e^(tX), we can simply take the first derivative of the moment-generating function:
\(M_X'(t) = n(pe^t + 1-p)^(n-1) * pe^t\)
The expected value is then given by:
\(E(e^(tX)) = M_X'(0) = n(pe^0 + 1-p)^(n-1) * p = (1-p + pe^t)^n\)
Therefore, the required expectation of the probability distribution of a binomial distribution (X) is \(E(etX) = (1 - p + pe^t)^n.\)
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When the outlier(s) are removed, how does the mean change?
A) The mean decreases by 1.9.
B) The mean increases by 2.4.
C) The mean increases by 1.9.
D) There are no outliers.
Answer:
B) The mean increases by 2.4 because the mean is 1149 and there 6 outliers.
What is the formula for AFC?
The formula for Average Fixed Cost (AFC) is: AFC = FC / Q. Where FC represents the total fixed costs incurred by a firm and Q represents the quantity of output produced by the firm.
AFC is a per-unit measure of the fixed cost of production, and represents the amount of fixed cost that is attributed to each unit of output. As the quantity of output increases, the AFC decreases, since the fixed costs are spread out over a larger number of units. AFC is an important concept in economics and business, as it is used to calculate other cost measures such as average total cost and average variable cost.
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Find the curve that describes the level curve of value c of the surface z = x^2/4 + y^2/25 where c < 0. a. The level curve is an ellipse centered at the origin. b. The level curve is a hyperbola. c. The level curve is a circle centered at the origin. d. The level curve is a parabola. e. The level curve is empty (contains no points).
The curve that describes the level curve of value c of the surface \(z=x^{2}/4 + y^{2}/25\) where c < 0 is a hyperbola i.e., the correct option is B.
To find the level curve, we set the surface equation equal to the constant value c:
\(c = x^{2}/4 + y^{2}/25\)
Since c is negative, let's rearrange the equation to isolate the terms with x and y:
\(y^{2}/25 - x^{2}/4 = -c\)
Now, we can rewrite the equation in a more recognizable form by dividing both sides by -c:
\(y^{2}/(25 * -c) - x^{2}/(4 * -c) = 1\)
This equation represents a hyperbola, as it has the general form of the equation for a hyperbola centered at the origin:
\(x^{2}/a^{2} - y^{2}/b^{2} = 1\)
Therefore, the level curve is a hyperbola.
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PLEASE ANSWER QUICKLY ASAP
Answer:
67°
Step-by-step explanation:
● cos<PQR = adjacent/hypotenus
● cos<PQR = 5/13
● cos< PQR = 0.384
Using a calculator:
● cos^-1(0.384) = 67°
● <PQR = 67°
PLEASE !! HELP i’ve been on this question for a while
Answer:
y = - [x - 1] + 2
Step-by-step explanation:
I think this is right
Im sorry if not :)
Rectangle ABCD is graphed in the coordinate plane. The following are the vertices of the rectangle: A(-2, 1), B(3, 1), C(3, 4), and D(-2, 4). What is the perimeter of rectangle ABCD?
The perimeter of rectangle ABCD is 12 sq. Units
The perimeter of rectangle is defined as the sum of all the sides of a rectangle.
For any polygon, the perimeter formulas are the total distance...
The vertices of the rectangle A (-2,1), B (3,1), C (3,4), and D (-2,4)
From the graph,
The coordinates of point Dare (3,3).
Area of rectangle ABCD=l × b=AB×BC
On further calculation we get
Area of rectangle ABCD=6×2
Area of rectangle ABCD=12 sq. Units
Hence, the perimeter of rectangle ABCD is 12 sq units.
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For the function below find a) the critical numbers; b) the open intervals where the function is increasing, and c) the open intervals where it is decreasing f(x)=8x³-42x-48x + 4 a) Find the critical number(s). Select the correct choice below and, if necessary fill in the answer box to complete your choice. A. The critical number(s) is/are (Type an integer or a simplified fraction. Use a comma to separate answers as needed
A) Function is increasing on (-∞, -1) and (7/2, ∞), and decreasing on (-1, 7/2).
b) The local minimum value of f is; 5608/2197 at x = -42/13, and the local maximum value of f is 139/8 at x = 7/2.
(a) To determine the intervals on which f is increasing or decreasing, we need to determine the critical points and then check the sign of the derivative on the intervals between them.
f(x)=8x³-42x-48x + 4
f'(x) = 24x² - 90
Setting f'(x) = 0, we get
24x² - 90 = 0
24x² = 90
x =± √3.75
So, the critical points are;
x = -1 and x = 7/2.
We can test the sign of f'(x) on the intervals as; (-∞, -1), (-1, 7/2), and (7/2, ∞).
f'(-2) = 72 > 0, so f is increasing on (-∞, -1).
f'(-1/2) = -25 < 0, so f is decreasing on (-1, 7/2).
f'(4) = 72 > 0, so f is increasing on (7/2, ∞).
Therefore, f is increasing on (-∞, -1) and (7/2, ∞), and decreasing on (-1, 7/2).
(b) To determine the local maximum and minimum values of f, we need to look at the critical points and the endpoints of the interval (-1, 7/2).
f(-1) = -49
f(7/2) = 139/8
f(-42/13) = 5608/2197
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A sequence has the recursive definition f(1)= 2/3, f(n)= f(n-1)•
3/2 for n > 2
Write the first 5 terms of the sequence. Keep the answers as fractions.
Can someone help me thank you
The value of the fractions will be:
1. 4/10 + 2/10 = 6/10
2. 9 /12 + 3/12 = 1
3. 6/10 + 4/10 = 1
4. 2/8 + 3/8 = 5/8
5. 2/7 + 6/7 = 1 1/7
6. 11/9 + 8/9 = 2 1/9
7. 5/13 + 10/13 = 1 2/13
8. 3/5 + 7/10 = 1 3/10
9. 7/8 + 13/16 = 1 11/16
10. 9/30 + 3/5 = 9/10
How to calculate the fractionA fraction simply means a piece of a whole. In this situation, the number is represented as a quotient such that the numerator and denominator are split. In this situation, in a simple fraction, the numerator as well as the denominator are both integers.
It should be noted that in order to add the numbers it's essential to have a common denominator. For example, 7/8 + 13/16 will be:
= 7/8 + 13/16
= 14/16 + 13/16
= 27/16
= 1 11/16
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What is 1.75 - 1/6
Thanks!
Answer:
19/12
Step-by-step explanation:
1.75=7/4
7/4-1/6
21/12-2/12
19/12
Answer:
19/12
Step-by-step explanation:
1.75=7/4
7/4-1/6
21/12-2/12
19/12
If c is a number with no exponent, what is the value of c in the equation below?\(\frac{ {4}^{7} }{ {4}^{3} } = {a}^{b} = c\)
Answer:
c = 256
Explanation:
Given the equation:
\(\frac{ {4}^{7} }{ {4}^{3} }={a}^b=c\)We apply the division law of indices to obtain:
\(\frac{ {4}^{7} }{ {4}^{3} }={4^{7-3}=4^4=256}\)The value of c is 256.
Claudia, who is 30 years old, has a 1 in 953 probability of giving birth to an infant with Down syndrome. However, Mayda, who is 40 years old, has a 1 in _____ probability.
For Mayda, who is 40 years old, the probability of giving birth to an infant with Down syndrome is 1 in 85.
To find out the maternal age-specific risk of Down syndrome,
The maternal age-specific risk of Down syndrome is the probability that a baby will be born with Down syndrome based solely on the age of the mother.
Use the maternal age-specific risk of Down syndrome for the specific maternal age,
For example, the maternal age-specific risk of Down syndrome for a 40-year-old mother is 1 in 85.
So the probability for Mayda, who is 40 years old, is 1 in 85.
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Please help This is geometry
Answer:
(x - 2)² + (y - 6)² = 4
Step-by-step explanation:
Equation of a circle is given by,
(x - h)² + (y - k)² = r²
Here, (h, k) is the center of the circle
r = Radius of the circle,
From the graph attached,
Center of the circle → (2, 6)
Radius of the circle = 2 units
Therefore, equation of the circle will be,
(x - 2)² + (y - 6)² = 2²
(x - 2)² + (y - 6)² = 4
the question is in the picture attached. I started to draw it but I don't know what to do next. please help!!!!!
Answer:
Is there an error in the question? it has BC = 27 twice and we don't know much about the other sides. Anyway let's try
Step-by-step explanation:
You are told that to go from WXYZ to ABCD the scale factor is 2/3, which means that you multiply by 2/3. So to go the other way round, from ABCD to WXYZ which is what you want, you divide by 2/3, or multiply by 3/2.
So, to find XY you multiply the right side from ABCD by 3/2. I think BC is the right side?
So XY = 27 × 3/2
XY = 81 / 2 or 40.5 or 40 1/2
Find three consecutive add integers with the sum of 141.
Answer:
45, 47, and 49.
Step-by-step explanation:
The sum of the three consecutive odd integers is 141. So, n + (n + 2) + (n + 4) = 141. The integers are 45, 47, and 49.
help me pleasee, my brain won't work
The given fractions have equal value, so Liam is correct.
How to find the equivalent fractions?Equivalent fractions are defined as fractions that have different numerators and denominators but the same value. For example, 2/4 and 3/6 are equivalent fractions because they are both equal to 1/2. A fraction is part of a whole. Equivalent fractions represent the same part of a whole.
Liam is claiming that the fraction -(5/12) is equivalent to 5/-12.
Thus, we can say that:
The fraction -(5/12) can be described as the opposite of a positive number divided by a positive number. A positive number divided by a positive number always results in a positive quotient and its' opposite is always negative.
The fraction 5/-12 can be described as a positive number divided by a negative number which always results in a negative quotient
The fractions have equal value, so Liam is correct
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HELPPPP!!! Simplify -4(x+1)+6x write your answer in factored form
Answer:
2x - 4
Step-by-step explanation:
Q) Simplify: -4(x+1) + 6x
→ -4(x+1) + 6x
→ -4x-4 + 6x
→ 2x - 4
The simplified form of the given polynomial is 2x-4 and the factors are 2 and (x-2).
What is factorization?The factorization method uses basic factorization formula to reduce any algebraic or quadratic equation into its simpler form, where the equations are represented as the product of factors instead of expanding the brackets. The factors of any equation can be an integer, a variable, or an algebraic expression itself.
The given polynomial is -4(x+1)+6x.
Using distributive property, multiply -4 into the bracket, that is
-4x-4+6x
= (-4x+6x)-4
= 2x-4
= 2(x-2)
Therefore, the simplified form of the given polynomial is 2x-4.
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Please help, If you can't help that is fine but if you can it would be appreciated :)
Answer:
the answer is B
Step-by-step explanation:
-4 * box
and you know that is meant to be 8 so you have to ask what would x 4 and give you -8 so you do -8/-4 to give you 2 so that means you know that that is -4 * 2 which would give you - 8 then that will replace all the other missing box.
Chuck, a single taxpayer, earns $76,000 in taxable income and $1 in interest from an investment in city of heflin bonds. if chuck earns additional 40,000 of taxable income, what is the marginal tax rate on this income?
If chuck earns additional 40,000 of taxable income, 23.52% the marginal tax rate on this income
Chuck, a single taxpayer, earns $76,000 in taxable income and $1 in interest from an investment in city of heflin bonds.
Tax on $76,000
4,617.5 + (76,000 - 40,125) * 22% = 12,510.0
Taxable income 76,000 + 40,000 = 116,000
Tax on $116,000
14,605.5 + (116,000 - 85,525) * 24% = 21,919.5
Marginal tax rate
(21,919.5 - 12,510) / 40,000 = 23.52%
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Describe in words where the square root of 45 minus 9 would be plotted on a number line.
Between −3 and −2, but closer to −3
Between −3 and −2, but closer to −2
Between 6 and 7, but closer to 6
Between 6 and 7, but closer to 7
Answer:
Between -3 and -2, but closer to -2
Step-by-step explanation:
The square root of 45 is approximately 6.708.
Subtract 9 from that and you get -2.292.
-2.292 is between -3 and -2, but is closer to -2.
Which statement best describes a graph of paired points that form a proportional relationship?
Question 2 options:
A. A straight line can be drawn through all the points and the line passes through the origin.
B. A straight line cannot be drawn through all of the points but the line passes through the origin
C. A straight line can be drawn through all the points but the line does not pass through the origin
D. A straight line cannot be drawn through all of the points and the line does not pass through the origin
Answer:
A straight line can be drawn through all the points and the line passes through the origin.
answer for brainliest and 10 points
Answer:
It is rational because 121 is a perfect square.
if I have one broccoli and my teacher gives me two broccolis how many broccolis do I have
Answer:
Step-by-step explanation:
I'm sure of it i even used my calculatr... it 13
Lashonna passed back 140 papers, if these papers were in stacks of 28 how many stacks of papers did lashonna pass back
By unitary method we can say that number of stacks of papers Lashona will pass back from 140 if each stack conatins 28 papers is 5.
According to the given question.
Total number of papers Lashonna passed back = 140
And one stack is made up of 28 papers.
As we know that, the unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Therefore,
By unitary method number of stacks of papers would be made from 140 if each stack conatins 28 papers
= 140/28
= 5
Hence, by unitary method we can say that number of stacks of papers Lashona will pass back from 140 if each stack conatins 28 papers is 5.
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Which is the graph of the linear inequality 2x-3y < 12?
Answer:
First, transform the given equation into the slope-intercept form, y = mx + b.
2x - 3y < 12
3y > 2x - 12
y > \(\frac{2}{3}\)x - 4
Since the equation is y > \(\frac{2}{3}\)x - 4, first draw the graph of y = \(\frac{2}{3}\)x - 4 with a dotted line (because it is >, not ≥) and shade the area above the dotted line.