Answer:
B.) (1, -5)
Given, equation:
[tex]\sf \dfrac{(x-1)^2}{25} -\dfrac{(y+5)^2}{49} =1[/tex]
Comparing it with standard formula of hyperbola:
[tex]\sf \dfrac{(x-h)^2}{a^2} -\dfrac{(y-k)^2}{b^2} =1[/tex]
where (h, k) is center
The given equation in standard form:
[tex]\sf \dfrac{(x-1)^2}{5^2} -\dfrac{(y-(-5))^2}{7^2} =1[/tex]
Determined:
(h, k) = (1, -5)
a = 5, b = 7
So, here (1, -5) is the center of the given hyperbola.
X-6y=24 find the slope
The slope of the linear equation perpendicular to:
x - 6y = 24
is a = -6.
How to find the slope of the perpendicular line?A general line can be written in the slope-intercept form as:
y = a*x + b
Where a is the slope and b is the y-intercept.
Particularly, two lines are perpendicular if the product between their slopes is equal to -1.
Here we want to find a line perpendicular to:
x - 6y = 24
First, we need to find the slope of this line.
x - 6y = 24
-6y = -x + 24
y = (-1/6)*-x - 24/6
y = (1/6)*x - 3
The slope is 1/6, then if the slope of the perpendicular line is a, the slope must be a solution of:
a*(1/6) = -1
a = -6
The slope of the perpendicular line is -6.
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Given a normal distribution with m=100 and s=10, if you select a sample of n=25, what is the probability that X is:
a. less than 95?
b. between 95 and 97.5?
c. above 102.2?
d. There is a 65% chance that X is above what value?
a. The probability that X is less than 95 is approximately 0.0668
b. The probability that X is between 95 and 97.5 is approximately 0.1359
c. The probability that X is above 102.2 is approximately 0.0228
d. The value of X for 65% chance is 99.23
We know, z=(X-mean)/ (S.D./sqrt N)
Thus, putting in the values for the respective cases, we get
(a) z value corresponding to X=95 is,
z=(95-100)/(10/sqrt 25)= -2.5
Therefore, required probability= area under the standard normal curve left to
z= -2.5 = 0.5000- 0.4938= 0.0062
(b) z value corresponding to X=95 is -2.5 and X=97.5 is,
z=(97.5-100)/(10/sqrt 25)= -1.25
Therefore, required probability= area under the standard normal between
z= -2.5 and z= -1.25= 0.4938- 0.3944= 0.0994
(c) z=(102.2-100)/(10/sqrt 25)= 1.1
Therefore, required probability= area under the standard normal curve right to
z= -2.5 = 0.5000- 0.3643= 0.1357
(d) 65%= 0.6500 is an area on the left side of the z value.
Or, we can say 35%= 0.3500 is on the right side of the z value.
therefore, the corresponding z value is -0.385 approximately.
Thus, for X value,
-0.385= (X-100)/(10/sqrt 25)
-0.385= (X-100)/2
-0.77= X-100
X= 99.23
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which of the following are quadratic functions?
A. y= 5x-3/2+x^2
B. y= x^2+5x-2
C. y=-x+2
D. y= x-1/x
The quadratic equation are y= 5x-3/2+x^2, y= x^2+5x-2 and y= x-1/x.
What is quadratic equation?it's a second-degree quadratic equation which is an algebraic equation in x. Ax2 + bx + c = 0, where a and b are the coefficients, x is the variable, and c is the constant term, is the quadratic equation in its standard form. A non-zero term (a 0) for the coefficient of x2 is a prerequisite for an equation to be a quadratic equation. The x2 term is written first, then the x term, and finally the constant term is written when constructing a quadratic equation in standard form. In most cases, the numerical values of letters a, b, and c are expressed as integral values rather than fractions or decimals.
Here,
A. y= 5x-3/2+x^2
It has a degree is 2, So quadratic equation.
B. y= x^2+5x-2
It has a degree is 2, So quadratic equation.
C. y=-x+2
It has a degree is 1, So it's not quadratic equation.
Hence the value of k is 0.33.
D. y= x-1/x
y = x² -1/x
It has a degree is 1, So it's not quadratic equation.
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Suppose you have a pint of grape juice and a pint of milk. You pour 1 tablespoon of the grape juice into the milk and mix it up. Then you pour 1 tablespoon of this mixture back into the grape juice. Which liquid is more contaminated?
The answer is pint of milk
What is a mixture?A mixture refers to the mix that is derived as a result of mixing two or more items or substances in a certain ratio or proportion.
Given here: 1 tablespoon of grape juice is mixed into the milk and 1 tablespoon of this mixture is mixed with grape juice.
Thus the milk is more contaminated as the latter mixture contains some amount of grape juice and as a result the grape juice mixture is not contaminated to the extent of the pint of milk.
Hence, The answer is pint of milk
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use the function below to find f(2) f(x) = 1/3 divided 4^x
The value of the function is 5.33
How to determine the value of the functionFrom the question, we have the following parameters that can be used in our computation:
f(x) = 1/3 * 4^x
To find f(2), we need to substitute x = 2 into the function f(x) = 1/3 * 4^x
f(x) = 1/3 * 4^x
f(2) = 1/3 * 4^2
f(2) = 1/3 * 16
f(2) = (1/3) * 16
f(2) = 16/3
f(2) = 5.33
So the value is f(2) = 5.33
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What is sixty-seven point four three divided by ten
Answer:
67,43/10 = 6.743
When dividing any number by 10, you just move the decimal to the left. When multiplying, you move it to the right.
Step-by-step explanation:
Hope it helps! =D
pls help me in this exercise
Answer:
a = 15 , b = [tex]\frac{2}{9}[/tex]
Step-by-step explanation:
the equation of proportion is
y = kx ← k is the constant of proportion
to find k substitute x = 0.7, y = 2.1 , values from the table into the equation
2.1 = 0.7k ( divide both sides by 0.7 )
3 = k
y = 3x ← equation of proportionality
then using x = 5
a = 3 × 5 = 15
using y = [tex]\frac{2}{3}[/tex]
[tex]\frac{2}{3}[/tex] = 3b ( multiply both sides by 3 to clear the fraction )
2 = 9b ( divide both sides by 9 )
[tex]\frac{2}{9}[/tex] = b
Help asap I need this by today!!!
Answer:33
Step-by-step explanation:
49-16=33
Using Pythagoras theorem, the altitude a is √33.
What is Pythagoras theorem?The Pythagorean theorem, a cornerstone of Euclidean geometry, connects the side lengths of a right triangle via the straightforward formula a² + b² = c². Ancient scholars and architects from Babylon, Egypt, China, and India were aware of the connection.
While Pythagoras lived and wrote between 569 and 475 BCE, the work that bears his name first appeared on clay Babylonian tablets around 1800 BCE. Early Chinese scholars were also aware of the Pythagorean theorem, and it was mentioned in ancient Indian sacred texts that dealt with the construction of altars.
To solve a,
We can see a right triangle forming by those 3 squares
Lets take theirs sides as the base, altitude and hypotenuse
Hypotenuse = 7
Base = 4
Altitude = to find
Using Pythagoras theorem
[tex]a^2 + b^2 = c^2[/tex]
[tex]\Rightarrow a = \sqrt{c^2 - b^2 }[/tex]
[tex]\Rightarrow a = \sqrt{7^2 - 4^2 }[/tex]
[tex]\Rightarrow a = \sqrt{49 - 16 }[/tex]
[tex]\Rightarrow a = \sqrt{33 }[/tex]
Thus, Using Pythagoras theorem, the altitude a is √33.
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what is the average (mean) value of 3t^3-t^2
To calculate the average (mean) value of a function, you need to find the area under the curve of the function, divide it by the interval over which the function is defined, and then find the value of the function at the midpoint of the interval.
In this case, the function is 3t³ - t² and we need to find an interval to calculate the average (mean) value. A common interval used for this calculation is from 0 to 1.
The area under the curve of the function from 0 to 1 can be found by integrating the function from 0 to 1. However, to keep it simple, we can also use the definite integral of the function from 0 to 1, which is:
∫ (3t³ - t²) dt = 3t⁴/4 - t³/3 | from 0 to 1
= (3/4) - (1/3) = 1/4
So, the average (mean) value of the function 3t³ - t² over the interval 0 to 1 is: 1/4 ÷ 1 = 1/4
And the value of the function at the midpoint of the interval, which is 0.5, is: 3(0.5) ³ - (0.5) ² = 3/8 - 1/4 = -1/32
So, the average (mean) value of the function 3t³ - t² over the interval 0 to 1 is -1/32.
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Can somebody please tell me how do we solve these questions? Thank you.
Answer:
D
Step-by-step explanation:
26+169=0
Select the correct answer.
Consider functions f and g.
f (x) = 11x³ 3x²
7x² + 9x³
g(x)
Which expression is equal to f (x) g(x)?
=
A.
B.
OC.
D.
-
7x² +99x³ 3x²
77x¹2 +99x9 21x8 27x6
18x7 + 10x6 + 6x5
77x7 + 78x6 - 27x5
-
-
The expression is equal to f(x) g(x) is 77x⁷ + 78x⁶ - 27x⁵
How to determine which expression is equal to f(x) g(x)?A function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range. A function is generally denoted by f(x) where x is the input.
In order to find which expression is equal to f(x) g(x), multiply (11x³ - 3x²) by (7x⁴ + 9x³). That is:
f(x) g(x) = (11x³ - 3x²)(7x⁴ + 9x³)
Expand the expression:
f(x) g(x) = 11x³ × 7x⁴ + 11x³ × 9x³ - 3x² × 7x⁴ - 3x² × 9x³
f(x) g(x) = 77x⁷ + 99x⁶ - 21x⁶ - 27x⁵
Combine like terms:
f(x) g(x) = 77x⁷ + 78x⁶ - 27x⁵
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Complete Question
Select the correct answer.
Consider functions f and g.
f(x) = 11x³ - 3x²
g(x) = 7x² + 9x³
Which expression is equal to f (x) g(x)?
A. 7x⁴ + 99x³ -3x²
B.77x¹² +99x⁹- 21x⁸ - 27x⁶
C. 18x⁷ + 10x⁶ + 6x⁵
D. 77x⁷ + 78x⁶ - 27x⁵
need help asap will give brainlist
Search fields jason makes 8 gallons of punch he serves some punch in 1 pint containers now he has 12 pints of punch how many pints of punch did jason serve
The amount of pints of punch that Jason served is; 52 pints
How to solve Algebra Word Problems?Algebraic word problems are defined as the questions that require translating sentences to equations, then solving those equations. and a single variable.
We are given that;
Amount of punch made = 8 gallons
Amount of punch left after serving = 12 pints
Now, conversion of pints to gallon is;
1 pint = 0.125 gallons
Thus;
12 pints = 1.5 gallons
Thus;
Amount of pints served = 8 - 1.5 gallons
= 6.5 gallons
Converting to pints gives 52 pints
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Summarize the graph showing gasoline prices.
Price of gasoline is with Time:
Fixed: A , C, E, and G.Increasing: DDecreasing: B, and FDefine the term rate of change?The term "rate of change" (ROC) describes the rate which something alters over time.
Thus, it is not the amount of specific features themselves but rather the acceleration as well as deceleration all changes (i.e., the rate). Rate of change is a tool used in finance to comprehend price returns and spot trend momentum.For the stated graph.
Price of gasoline is fixed for Time: A , C, E, and G.
Price of gasoline is increasing rate for Time: D
Price of gasoline is decreasing rate for Time: B, and F
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Match each expression with the type of factoring that applies. Question 11 options: 3x3 + 15x2 + 2x + 10 x3 + 27 2x2 + 6x x2 - 25 x2 + 6x + 8 x3 - 1 1. GCF (greatest common factor) 2. Unfoil 3. Difference of Squares 4. Difference of Cubes 5. Sum of Cubes 6. Grouping
Expressions → Type of factoring
3x³ + 15x² + 2x + 10 → Grouping
x³ + 27 → Sum of cubes
2x² + 6x → Greatest common factor
x² - 25 → Difference of squares
x² + 6x + 8 → Unfoil
x³ - 1 → Difference of cubes
What is factorization?'Factor' is a term used to express a number as a product of any two numbers. Factorization is a method of finding factors for any mathematical object, be it a number, a polynomial or any algebraic expression. Thus, factorization of an algebraic expression refers to finding out the factors of the given algebraic expression.
Given expressions
3x³ + 15x² + 2x + 10Using grouping method
= (3x³ + 15x²) + (2x + 10)
= 3x²(x + 5) + 2(x + 5)
Factoring out common term
= (x+5)(3x² + 2)
x³ + 27It can be written as
= x³ + 3³
Which is sum of cubes
2x² + 6xit can be written as
= 2x.x + 2x.3
GCF (greatest common factor) = 2x
= 2x (x + 3)
x² - 25It can be written as
= x² - 5²
which is difference of squares
x² + 6x + 8= x² + 4x + 2x + 8
= x(x + 4) + 2(x + 4)
= (x + 4) (x + 2)
Which is unfoil.
x³ - 1it can be written as
= x³ - 1³
which is difference of cubes.
Hence, the factoring of expressions 3x³ + 15x² + 2x + 10, x³ + 27, 2x² + 6x, x² - 25, x² + 6x + 8, x³ - 1 refers to grouping, sum of cubes, greatest common factor, difference of squares, unfoil and difference of cubes respectively.
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You can paint 75 square feet of a surface every 45 minutes. Determine how long it takes you to paint a wall with the given dimensions.
9ft x 9ft
Answer: 48.6 minutes
Step-by-step explanation:
First find the total square feet:
9 x 9 = 81
Next, divide this by the increments give:
81 / 75 = 1.08
Now, the increments were each 45 minutes, so multiply this by the product:
45 x 1.08 = 48.6
image! i’ll put the answers here
A. 2.5
B. 3
C. 5
D. 9.5
Answer:
Text are too tiny for me to see sorry
Answer:
2.5
Step-by-step explanation:
P=29
w+w=4+4=8(rule of perimeter is 2w+2L)
29-8=21
21-16=5(L+L=8+8=16)
5 will be over 2 since it's for the 2 sides so 5÷2=2.5
your welcome
Jordan went to the store with $90.He wants to purchase a leather jacket for $45,a hat for $10,and the rest on jeans.Each pair of jeans costs $35.Write an inequality for the number of jeans he can purchase
Answer:
x <= 1.
Step-by-step explanation:
Let x be the number of jeans Jordan can purchase.
We know that the total cost of the leather jacket, hat and jeans is $45 + $10 + $35x = $45 + $10 + $35x.
We also know that the total cost cannot exceed the amount of money Jordan has, which is $90.
So we can write the inequality: $45 + $10 + $35x <= $90
Solving for x, we get: $35x <= $35
x <= 1
So the number of jeans Jordan can purchase is x <= 1.
Faez bought a box of cheese tart from bakery shop for his family tea time. Diagram 12 shows the top view of a cuboid-shaped box that can hold 12 round- shaped of cheese tart with the same size.
Calculate the perimeter, in cm, of the space that is not filled with cheese tart.
The Perimeter of the space that is not filled with cheese tart is 44 cm.
What is perimeter?Perimeter is the total length of the boundary that surrounds a two-dimensional shape, such as a square or rectangle. It is measured in linear units, such as inches, feet, or meters. The perimeter of a shape can be calculated by adding up the lengths of each of its sides. Perimeter is also used to calculate the area of a two-dimensional shape. The area of a shape can be calculated by multiplying its perimeter by its width. Perimeter is an important concept in mathematics and is used to solve a variety of problems related to area and volume. It is also an important tool for measuring the size and shape of objects, such as in architecture, engineering, and construction.To learn more about perimeter refer to:
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3. A boat has a speed of 36 km/h. If a km is about 60% of a mile, then ABOUT how many miles per hour is
the boat traveling?
Therefore , the solution of the given problem of unitary method is Boat is travelling at a speed of 21.6 miles /hour.
What does "unitary method" mean?The unit method is a way of problem-solving where you first calculate the worth of a single group, subsequently multiply that value to get the answer. Simply expression, a single system value is extracted from a specified multiple using the unit method. For illustration, 40 pens will set you back 400 rupees, or $1.01. The method used to accomplish this might be standardized. a solitary nation. anything has a distinctive component. (Mathematics, Algebra) Its adjoint or reciprocal are equivalent. (Linear Algebra, Mathematical Interpretation, Mathematics of Matrix or Operators)
Here,
A boat has a speed = 36 km/hour
a km is about 60% of a mile.
1 km = 60/100 mile = 0.6 mile
the boat has a speed = (0.6 × 36) mile/hour
= 21.6 miles/ hour
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The gold standard is
The Gold Standard was a system under which nearly all countries fixed the value of their currencies in terms of a specified amount of gold, or linked their currency to that of a country which did so.
Step-by-step explanation:
Answer:
No longer used.
Step-by-step explanation:
Due to too much paper money being printed, some countries did not have enough gold reserves to exchange for the excessive amounts of paper promissory notes. (China's overprinting of printed money during the 9th and 15th centuries foreshadowed England's overprinting during WWI some 200 years later.) This rendered the paper money worthless. (One of the causes of the Great Depression.)
The gold standard is no longer used now, but the system it inspired is currently used between nations.
The distribution of the amount of money spent by students on textbooks in a semester is
approximately normal in shape with a mean of: = 428 and a standard deviation of: σ= 24.
According to the standard deviation rule, almost 16% of the students spent more than what amount of money on
textbooks in a semester?
A normal distribution with a mean of 0 and a standard deviation of 1 is called a standard normal distribution.
What is the standard deviation of o=24?Tables of the standard normal distribution are frequently used to show different regions of the normal distribution. A standard normal distribution is a normal distribution with a mean of 0 and a standard deviation of 1.
Tables of the standard normal distribution are frequently used to show different regions of the normal distribution.The standard deviation reveals the degree of data skewedness. It gauges how far away from the mean each observed value is. Approximately 95% of values in any distribution will be within two standard deviations of the mean.
A sigma value, typically represented by the Greek letter or lower case s, is a measure of how far a sample or point of data is from its mean. It is given in standard deviations.
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Find the x-intercepts of the graph of the equation
x² - 2x + y² - 3y = 48
The x-intercepts of the graph of the equation are (8,0) and (-6,0).
What are intercepts?
A point on the y-axis known as an intercept is where the line's slope passes.
X-intercept and Y-intercept are the two main intercepts. The line's x-intercept and y-intercept are located where the line crosses the x and y axes, respectively.
Now, in order to find the x- intercepts, we need to put y=0 because at that point the line crosses the x- axis and therefore, y=0 at that point.
So,
x^2-2x+(0)^2-3(0)=48
⇒x^2-2x=48
⇒x^2-2x-48=0
⇒x^2+6x-8x-48=0
⇒x(x+6)-8(x+6)=0
⇒(x-8)(x+6)=0
So, x= 8,-6
Hence, the x-intercepts of the graph of the equation are (8,0) and (-6,0).
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need help with that answer
For you to make 5 pecan pies, it would be necessary to buy 1.9 pounds of pecans.
How many grams are there in a cup of pecans?Based on the information displayed on the label 1 cup of pecans is equal to 99 grams.
How many pounds do you need for 5 pecan pies?We know 1 pecan pie requires 1 3/4 cups or 1.75 cups (3/4 = 0.75)
1.75 x 5 = 8.75 cups in total
Now, let's calculate this in grams:
8.75 x 99 = 866.22 grams
Finally, let's calculate the pounds
1 pound = 453
x = 866.22
x = 866.22 / 453 = 1.9
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l =240, w= l ÷ 3, A = I ×W, A= ?
Using the substitution method, we know that the values of A is 19,200.
What is the substitution method?The substitution method is typically used in mathematics to solve an equation system.
In this approach, you solve the equation for one variable first, then you enter its value into the other equation.
So, we know that:
I = 240
W = I / 3
A = I * W
A = ?
Now, keep substituting the values to get A as follows:
I = 240
W = 240/3
W = 80
A = I * W
A = 240 * 80
A = 19,200
Therefore, using the substitution method, we know that the values of A is 19,200.
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Repairs on victors car what hourly pay did the repair charge for labor
The hourly pay that was charged for the repairs to Victor's car was $ 57.14
How to find the hourly wage ?To find the hourly wage, find the total labor wages that were charged as a cost to Victor's repairs. This cost would be:
= 272 - 6 - 28. 50 - 20 .00 - 15. 00 - 2. 50
= $ 200
The total hourly wage charged was $ 200 for 3 . 5 hours of work.
This means that the hourly pay charged was :
= Total labor wages / Number of hours
= 200 / 3 . 5
= $ 57.14
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5/34 x 22 2/3-2 1/9
what is the solution
Answer: The solution to the expression is the result of the mathematical operations being performed in the correct order. The order of operations is: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
5/34 is a fraction, 22 2/3 is a mixed number, and 2 1/9 is also a mixed number. To perform the operations, we need to convert all these mixed numbers to fractions.
So, 22 2/3 is equal to (223+2)/3 = 68/3
and 2 1/9 is equal to (29+1)/9 = 19/9
Now the expression become 5/34 x 68/3 - 19/9
We can now perform the operations:
5/34 x 68/3 - 19/9
= (568)/(343) - 19/9
= 340/102 - 19/9
Now we have to perform subtraction, for this we need to have a common denominator:
= (3409 - 19102)/(102*9)
= 2861/918
The solution is 2861/918 which can be simplified to 3 3/34
Step-by-step explanation:
Please help I’m so confused!!!
Part (a)
[tex]\lim_{h \to 0} \frac{(h-1)^5+1}{h} \\ \\ =\lim_{h \to 0} \frac{5(h-1)^4}{1} \\ \\ =\boxed{5}[/tex]
Part (b)
[tex]y+1=5(x+1) \\ \\ y+1=5x+5 \\ \\ \boxed{y=5x+4}[/tex]
I need help finding the standard deviation
The standard deviation of the data-set is given as follows:
2.24.
How to obtain the standard deviation of the data-set?The standard deviation of a data-set is given by the square root of the sum of the differences squared between each observation and the mean, divided by the number of values.
The sum of the differences squared between each observation and the mean is given as follows:
4 x (6 - 9.28)² + 5 x (7 - 9.28)² + (8 - 9.28)² + 4 x (9 - 9.28)² + 5 x (10 - 9.28)² + 4 x (11 - 9.28)² + 6 x (12 - 9.28)² = 144.75.
Dividing by the number of values, we have that:
144.75/(4 + 5 + 1 + 4 + 5 + 4 + 6) = 5.
Taking the square root, the standard deviation is given as follows:
2.24.
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The population of city A is eighty-four thousand teo hundred-six. The population of city B is represented by the expression 80,000 + 4000 + 200 + 10 +6. Write an expression using < > or = to compare the population of City A and City B. Explain how you know your answer is correct.
The comparison that can be be made between population of city A and B is City A < City B
How to find out the size of the populationThe population of city A is eighty-four thousand two hundred-six
This is written in numerals as : 84,206
For Population B the size is said to be:
80,000 + 4000 + 200 + 10 +6
we would have to add this up
= 84216
Now we are to compare the value that is greater
84216 is greater than 84206
hence we would say that City A has a less population compared to City B which is greater
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