If h(x) = (-x + 1)2 – 5 and g(x) = -x – 2, then (hog)(x) will be B. -x2 + 2x + 2.
If h(x) = (-x + 1)2 – 5 and g(x) = -x – 2, then (hog)(x) = (h(g(x)). This means that we need to plug in the value of g(x) into the equation for h(x) and simplify. To get this result, first use the chain rule:
(hog)(x) = h(g(x)).
So, (hog)(x) = h(g(x)) = h(-x-2) = (-(x)-2+1)2 – 5 = (-x-1)2 – 5
Expanding the square, we get:
(hog)(x) = (-x-1)(-x-1) – 5 = x2 + 2x + 1 – 5 = x2 + 2x - 4
Therefore, the correct answer is B. -x2 + 2x + 2.
Answer: B. -x2 + 2x + 2
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Mary has $400 in her bank account. She buys an iPad for $475. What is her account balance now?
Answer:
- 75.00
Step-by-step explanation:
400 - 475 = - 75
Helping in the name of Jesus.
Answer:
She's in debt $75
Step-by-step explanation:
475-400=-75
The price of petrol is Rx per litre. After an increase in price of R1 per litre,
you can buy seven litres less for R504. Calculate the original petrol
price. Show all
your calculations[6]
Answer:
Let's assume that the original price of petrol is x per liter.
After the increase of R1 per liter, the new price of petrol is (x+1) per liter.
According to the problem, with the new price, you can buy 7 liters less for R504, so we can write:
7(x+1) = 504
Simplifying this equation, we get:
7x + 7 = 504
Subtracting 7 from both sides, we get:
7x = 497
Dividing both sides by 7, we get:
x = 71
Therefore, the original price of petrol was Rx71 per liter.
Hi. if someone could help me please do it due tomorrow and I have no clue
Answer:if what im getting at is correct, 8000 cm for the part a then that means part b is probably in conversion of that to 80 m
Step-by-step explanation:
if what i think may be correct 1:1000 means that 8 cm would be 8000 then, if it wants to know the real length in meters then it would have to be converted making it 80 meters
___________________________________________________
Hope this is correct
Answer:
A) 8000 cm
B) 80m
Step-by-step explanation:
A) 1:1000 is 0.001 times that by 1000 you get 8 x 1000=8000
=8000cm
B) we know that in cm the ship size is 8000cm converting cm to meter is basically
8000÷100= 80meters
Find the area of the composite figure below.
The tοtal area οf the cοmpοsite figure is 358.38 mm² (rοunded tο twο decimal places).
What is Area?Area is the measurement οf the size οf a surface οr a regiοn in a 2D plane, typically measured in square units. It is calculated by multiplying the length and width οf a surface οr regiοn fοr simple shapes like rectangles, οr by using fοrmulas specific tο each shape fοr mοre cοmplex shapes.
The area οf a semicircle with radius r is given by (π/2)r², and the area οf a trapezium with height h and parallel sides a and b is given by (h/2)(a+b).
Substituting the given values, we get
Area οf semicircle = (π/2)(9mm)² = 81π/2 mm²
Area οf trapezium = (13mm/2)(7mm+18mm) = 227.5 mm²
Therefοre, the tοtal area οf the semicircle and trapezium is:
81π/2 + 227.5 ≈ 358.38 mm²(rοunded tο twο decimal places).
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PLEASE HELP ASAP
A dog eats soft food out of a 16oz packet. Every day the dog eats its meals split into three dishes breakfast, lunch, and dinner. If the dog needs to eat 11oz daily, how many oz would be in each dish?
A dog eats soft food out of a 16oz packet. Every day the dog eats its meals split into three dishes breakfast, lunch, and dinner. If the dog needs to eat 11oz daily, each dish would have 3.67oz of food.
To find out oz would be in each dish, we need to divide the total amount of food the dog needs to eat daily (11oz) by the number of dishes (3). This will give us the amount of food in each dish.
Here's the math:
11oz ÷ 3 dishes = 3.67oz per dish
So, each dish would have 3.67oz of food.
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You and your friend are in an ice skating race. You skate at a rate of 12 feet per second. Your friend skates at a rate of 10 feet per second and has a head start of 20 feet.
a. How long will it take you to catch up to your friend?
b. The entire race is 180 feet. How far ahead of your friend will you be when you cross the finish line?
a. It will take you 2 seconds to catch up to your friend.
b. You will be 60 feet ahead of your friend when you cross the finish line.
a. This is because you are skating at a rate of 12 feet per second and your friend has a head start of 20 feet, so you must cover 20 feet in 2 seconds (20 feet/12 feet per second).
b. You will be 60 feet ahead of your friend when you cross the finish line.
This is because your friend is skating at a rate of 10 feet per second, and you are skating at a rate of 12 feet per second, so you will gain an additional 2 feet per second.
Therefore, in the 180-foot race, you will have gained an additional 60 feet over your friend (180 feet/2 feet per second).
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use the number line to represent the solution 5 x < 20
x<4 is the solution of the inequality 5 x < 20
What is Number system?A number system is defined as a system of writing to express numbers.
The given inequality is 5 x < 20
We have to solve for x
Divide both sides by 5
x<20/5
Divide numerator and denominator by 5
x<4
The graph of x<4 is given in the attachment.
Hence, x<4 is the solution of the inequality 5 x < 20
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Due to an unforeseen case of asthma, Big Wolf Demolition has to buy a wrecking ball. The ball, along with its equipment, will cost $10,000. The cash flows resulting from the investment are as follows: Year 1: $6,000; Year 2: $7,500; Year 3: $7,000; Year 4: $2,000. Calculate the IRR of the project
The project is expected to generate a return of 16.1% per year, which is higher than the company's cost of capital.
To calculate the IRR of the project, we need to find the discount rate at which the present value of the cash inflows equals the initial cost of the investment. We can use the following formula to find the IRR:
NPV = 0 = CF0 + CF1/(1+IRR)¹ + CF2/(1+IRR)² + CF3/(1+IRR)³ + CF4/(1+IRR)⁴
Where:
CF0 = initial investment = -$10,000
CF1, CF2, CF3, CF4 = cash flows in years 1, 2, 3, and 4, respectively
IRR = the discount rate we want to find
Using the given values, we can plug them into the formula and solve for IRR using a financial calculator or Excel. Alternatively, we can use a trial-and-error method to find the discount rate that makes NPV equal to zero.
Here is one way to solve for IRR using Excel:
In Excel, create a new spreadsheet.
In cells A1 to A5, enter the cash flows: -10000, 6000, 7500, 7000, and 2000.
In cell B1, enter the formula: =IRR(A1:A5)
Press Enter. The IRR of the project is displayed in cell B1 as a percentage.
Using this method, we find that the IRR of the project is approximately 16.1%.
Therefore, the Internal Rate of Return (IRR) of the project is calculated to be 16.1%, which indicates that the project is expected to generate a return that is greater than the cost of capital for the company. Hence, investing in this project is considered financially viable for Big Wolf Demolition.
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Is 6x-2 equivalent to 2-6x
Answer:
No
Step-by-step explanation:
6x-2
Factor out -1
( - -6x + -2)
- ( -6x +2)
- ( 2 -6x)
This is not equal to (2+6x) because of the negative sign out front.
A venue sells seated, standing and VIP tickets.
The seated and standing tickets are in the ratio 1:2
The standing and VIP tickets are in the ratio 6:1
What percentage of the tickets sold are standing?
The percentage of those standing is 60%
How to determine the percentage of those standingFrom the question, we have the following parameters that can be used in our computation:
The seated and standing tickets are in the ratio 1:2The standing and VIP tickets are in the ratio 6:1Using the above as a guide, we have the following:
Seated : Standing = 1 : 2
Standing : VIP = 6 : 1
Multiply Seated : Standing = 1 : 2 by 3
Seated : Standing = 3 : 6
Standing : VIP = 6 : 1
Combine the ratios
Seated : Standing : VIP = 3 : 6 : 1
So, we have
Standing = 6/(3 + 6 + 1) * 100%
Evaluate
Standing = 60%
Hence, the percentage is 60%
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Find the measure of angle R.
17.2°
16.1°
70.1°
88.6°
Answer:
16.1 is the closest asnwer
Step-by-step explanation:
if you didn't understand feel free to send me a message bro
Maths question buys plsss
The difference in volumes between the total volume and initial volume is 40 milliliters.
What is volume?Volume is a collection of two - dimensional points enclosed by a single dimensional line. Mathematically, we can write -
V = ∫∫∫ F(x, y, z) dx dy dz
Given is the volume flask as shown in the image.
Initial volume in the container {I} : 360 milliliters
Total volume of the container {T} : 400 milliliters
The difference in volumes between the total volume and initial volume -
{T} - {I}
400 - 360
40 milliliters
Therefore, the difference in volumes between the total volume and initial volume is 40 milliliters.
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Question 10 Solve the linear inequality 3x+(1)/(3)>=(3)/(2)x+(4)/(7). Enter your answer using interval notation.
The linear inequality answer using interval notation are [10/63, ∞]
To solve the linear inequality 3x+(1)/(3)>=(3)/(2)x+(4)/(7), we need to isolate the variable on one side of the inequality.
Here are the steps to do so:
1. Subtract (3)/(2)x from both sides of the inequality: 3x-(3)/(2)x+(1)/(3)>=(4)/(7)
2. Combine like terms on the left side of the inequality: (3/2)x+(1)/(3)>=(4)/(7)
3. Subtract (1)/(3) from both sides of the inequality: (3/2)x>=(4)/(7)-(1)/(3)
4. Find a common denominator and combine the fractions on the right side of the inequality: (3/2)x>=(12-7)/(21)
5. Simplify the fraction on the right side of the inequality: (3/2)x>=(5)/(21)
6. Multiply both sides of the inequality by the reciprocal of (3/2) to isolate the variable: x>=(5)/(21)*(2)/(3)
7. Simplify the fraction on the right side of the inequality: x>=(10)/(63)
The solution to the inequality is x>=(10)/(63). In interval notation, this is expressed as [10/63, infinity).
So the answer is [10/63, infinity]
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Suppose my utility function for asset position x is given by u(x) = 2x + 1.
a) Am I risk-averse, risk-neutral, or risk-seeking?
b) I now have $20,000 and am considering the following two lotteries:
Li: With probability I, I lose $1,000
L2: With probability .9, I gain $0.
With probability .1, I lose $10,000.
Determine which lottery I prefer and the risk premium of L2.
The risk premium of L2 is $19,000 - $18,000.5 = $999.5.
The utility function u(x) = 2x + 1 represents a risk-neutral individual. This is because the utility function is a linear function, meaning that the marginal utility of wealth is constant. Therefore, the individual is indifferent between a certain outcome and a risky outcome with the same expected value.
To determine which lottery the individual prefers, we can calculate the expected utility of each lottery and compare them. The expected utility of a lottery is the sum of the probabilities of each outcome multiplied by the utility of that outcome.
The expected utility of Li is:
EU(Li) = 1 * u($20,000 - $1,000) = 1 * u($19,000) = 1 * (2 * $19,000 + 1) = $38,001
The expected utility of L2 is:
EU(L2) = 0.9 * u($20,000 + $0) + 0.1 * u($20,000 - $10,000) = 0.9 * u($20,000) + 0.1 * u($10,000) = 0.9 * (2 * $20,000 + 1) + 0.1 * (2 * $10,000 + 1) = $36,001.1
Since the expected utility of Li is greater than the expected utility of L2, the individual prefers Li.
The risk premium of L2 is the difference between the certain outcome that gives the same utility as L2 and the expected value of L2. The certain outcome that gives the same utility as L2 is $18,000.5, since u($18,000.5) = $36,001.1. The expected value of L2 is $19,000. The risk premium of L2 is $19,000 - $18,000.5 = $999.5.
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Risk premium = $900
a) Since the utility function is increasing, this means you are risk-averse as increasing your position increases your utility.
b) In this case, you would prefer Lottery Li as it has lower risk of loss compared to Lottery L2. The risk premium of L2 can be calculated by finding the expected value of the lottery and subtracting the expected value of Li.
Expected Value of Li: (.9 x $20,000) - (.1 x $1,000) = $18,900
Expected Value of L2: (.9 x $20,000) - (.1 x $10,000) = $18,000
Risk premium = $18,900 - $18,000 = $900
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For each of the following statements, indicate if it is true or false. Write T for a true statement, and F for a false statement. You will receive 1 point for every correct answer and .5 negative points for every incorrect answer (but you cannot receive a negative mark on this question). (a). If A is an m x n matrix and B is an n x n matrix, where m
The given statement " If A is an m x n matrix and B is an n x n matrix, then A × B is an m x n matrix" is True. Correct answer of (a) is T.
This statement is definately true because, it helps to consider the dimensions of a matrix. The dimensions of a matrix refer to the number of rows and columns it contains. In the case of an m x n matrix (A) and an n x n matrix (B), the dimensions of A are m rows and n columns, while the dimensions of B are n rows and n columns.
When A is multiplied by B, the result is an m x n matrix, meaning it contains m rows and n columns. This is due to the fact that the number of columns of the first matrix (A) must equal the number of rows of the second matrix (B) in order for the matrices to be compatible for multiplication.
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The area of a square living room is 256 ft2
. Which is the length of the room?
Answer:
squareroot(256)
16
Step-by-step explanation:
im genius
Find the length of the segment indicated. Round your answer to the nearest tenth if necessary.
The length of the segment indicated is c = c = 9.92.
What is Pythagoras' theorem?Pythagoras discovered that the square of the hypotenuse in a right-angled triangle with a 90° angle is equal to the sum of the squares of the other two sides.
The triangle has three sides: the hypotenuse, which is always the longest, the opposite, which doesn't touch the hypotenuse, and the adjacent (which is between the opposite and the hypotenuse).
a² = b² + c²
a = 19
b = 16.2
c or x =?
19² = 16.2² + c²
361 = 262.4 + c²
c² = 98.6
c = √98.6
c = 9.92
Therefore, the length of the segment indicated is c = 9.92.
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steve earns $255.75 a week. He is single.and claims 2 allowances. What amount is withheld for federal income tax
Answer:
$445.10
Step-by-step explanation:
The amount withheld for federal income tax depends on several factors, including Steve's filing status, income, and deductions. However, we can make an estimate based on some assumptions.
Assuming Steve is paid weekly and is paid for 52 weeks a year, his gross income would be:
$255.75 x 52 = $13,293
We also assume that Steve is claiming two allowances. Each allowance reduces the amount of taxable income subject to federal income tax withholding. For 2021, each allowance is equal to $4,300.
Therefore, Steve's taxable income for federal income tax purposes would be:
$13,293 - (2 x $4,300) = $4,693
To estimate the federal income tax withholding, we can use the IRS tax tables. For a single person claiming two allowances and earning $4,693 per week, the estimated federal income tax withholding would be:
$445.10
However, this is just an estimate, and the actual federal income tax withholding may be different based on Steve's specific circumstances. It's always best to consult with a tax professional for accurate tax advice.
Solve the equation 17.25x + 3.89 = 21.14. Give your answer correct to the nearest integer.
Answer:
x = 1
Step-by-step explanation:
17.25x+3.89=21.14
17.25x=17.25
x = 1
Answer:
The solution to the equation is x = 1
Step-by-step explanation:
Hi,
We need to isolate the term that contains the variable "x", so we will subtract 3.89.
17.25x + 3.89 - 3.89 = 21.14 - 3.89
We obtain:
17.25x = 17.25
Dividing both sides by 17.25:
x = 1
Therefore, the solution to the equation is x = 1.
Good luck!
Use the Corresponding Angles Converse and ∠ 1 ≅∠2 to show that I // m.
Therefore , the solution of the given problem of angles comes out to be Lines I and m can be inferred to be parallel by the Corresponding Angles Converse .
An angle's meaning is what?An angle is a shape in Euclidean geometry consisting of two rays, or sides of a circular, that split at the angle's apex and the angle's apex, which is in the middle. Where they are located, two rays can join to form an angle. Angle is another outcome of two entities interacting. They are known as dihedral angles.
Here,
The Corresponding Angles Converse states that if two parallels are intersected by a transversal such that a set of corresponding angles are congruent, then perhaps the two lines are parallel.
This can be used to demonstrate that lines I and m are parallel.
We can infer that 1 and 2 are corresponding angles because 1 2.
We can infer that they have the same measure because they are congruent.
Let's now think about the transversal line t. Lines I and m can be inferred to be parallel by the Corresponding Angles Converse because 1 and 2 are corresponding angles and t crosses both I and m.
We have thus demonstrated that I / m.
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john needs to save at least $120 for camp. He has saved $60. Which graph represents the amount of money that john still needs to save for camp?
The graph that best represents the amount of money that John still needs to save for camp is a bar graph.
What is a bar graph?A bar graph is a graphical representation of data that is used to compare different categories of data. It is composed of rectangular bars with lengths proportional to the values that they represent. A bar graph may contain either vertical or horizontal bars, and it is usually used to represent data that is grouped into categories.
This graph would have a vertical axis that represents the amount of money that still needs to be saved and a horizontal axis that represents the amount of time. The graph would start with the bar at $60 and gradually increase over time until it reaches the goal of $120. He could also use the graph to determine how much money he needs to save each week or month in order to reach the goal on time.
Additionally, the graph could show him how much he has saved so far and how much he needs to save in order to reach the goal.
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PLEASE HELP ME I REALLY NEED HELP
Answer: true, true, false, true
Step-by-step explanation:
1 True- 2 is a prime number
2- True 2 is a prime number
3 False 2,3,5,7 can be prime numbers as well
4 True 2 is a prime number
Help me please with this
g(x) = -f(x) - 4
===========================================================
Explanation:
The point (0,1) is on the the red f(x) curve. It's the y-intercept.
If we reflected that point over the x axis, then it moves to (0,-1). Shift it down 4 units to get to (0,-5)
The point (0,-5) is on the purple g(x) curve.
This process of...
reflect over the x axisshift down 4 unitsis applied to every point on the red curve to arrive at a corresponding point on the purple curve. The order of the transformations matters. We can't shift down first before reflecting (or else g(x) will be in a different spot).
We stick a negative sign in front of the f(x) to reflect over the x axis. This is to change the sign of the y coordinate from positive to negative. Our answer choices are narrowed to either B or C.
The answer is choice B since that -4 at the end means "shift each point 4 units down". We're subtracting 4 from each y coordinate.
GeoGebra and Desmos are two useful tools to help verify the answer.
What is the circumference of the circle with a radius of 6.5 meters? Approximate using π = 3.14.
40.82 meters
20.41 meters
9.64 meters
4.33 meters
The circumference of the circle.
The formula:
[tex]\huge\begin{array}{ccc}C=2\pi r\end{array}[/tex]
[tex]r[/tex] - radius
SOLUTION:We have:
[tex]r=6.5m[/tex]
Substitute:
[tex]C=2\cdot6.5m\cdot\pi=13\pi m[/tex]
Use: [tex]\pi\approx3.14[/tex]
[tex]C\approx13m\cdot3.14=40.82m[/tex]
Answer:40.82 meters
The circumference of the circle.
The formula:
- radius
SOLUTION:
We have:
Substitute:
Use:
Step-by-step explanation:
Give bro above me the good stuff
HELP!!!
Zach earns $37.50 every weekend for delivering newspapers. Zach is saving his earnings in order to buy a new computer that costs $470.80. If Zach already has $58.30, enter the minimum number of weekends Zach will need to work before he has enough money to buy the computer.
Answer: 11 weekends
Step-by-step explanation: I did 470.80 divided by 37.50 and got 12 with a decimal, so then I multiplied 37.50 by 11 and got 412.5, then added the 58.30 .
Answer:
Step-by-step explanation:
So first you have to subtract the total that the computer costs by how much zach already has. Then you get 411.7. Then you have to divide 411.7 by 37.50 to get how many weeks it takes to get the computer. Which is 10.96 or 11. 11 weeks is the answer! You can check this by multiplying 37.50 by 11 and add 58 because he already has that money, you will get 470! which is close so there you go!
Which of the following statements is true? Please explain why.
(a) Regression coefficients estimated using least squares are always BLUE.
(b) If the omitted variable has positive effect on the explained variable and is negatively correlated with another explanatory variable we have negative bias.
(c) R2 j in the expression: V ar(βˆ j ) = σ 2 SSTj (1−R2 j ) is obtained from the regression of the dependent variable on the rest of explanatory variables.
(d) None of the above
The correct statement is (a) Regression coefficients estimated using least squares are always BLUE.
Therefore, statement (a) is true. The other statements are not correct. Statement (b) is incorrect because the omitted variable bias can be positive or negative, depending on the direction of the correlation between the omitted variable and the other explanatory variables. Statement (c) is incorrect because R2 j is obtained from the regression of the jth explanatory variable on the rest of the explanatory variables, not the dependent variable. Statement (d) is incorrect because statement (a) is true.
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45 minutes of 2 1/2 hours as a percentage
show method
Answer:
30%
Step-by-step explanation:
First, I added up the number of minutes in 2 1/2 hours. 2 hours is 120 minutes, and 1/2 hour is 30 minutes. 120 + 30 = 150.
Next, divide 45 (which is the number out of 150 we are determining the percentage for) by 150 (which is the total number of minutes). Multiply that number by 100 to get 30. The answer is 30%.
Hans has scored 79, 89, 80, and 65 on his previous four tests. What score does he need on his next test so that his average (mean) is 77?
yes
im not sure though try it!
Let B be an invertible matrix such that B^(-1) (see photo)
Find the solution of the equation Bx = (see photo)
Bx = 1
2
3
B^-1 = -1 0 1
2 2 0
1 0 1
The solution of the equation Bx = 1 2 3 is x = 2 6 4.
To find the solution of the equation Bx =
1
2
3
, we can multiply both sides of the equation by the inverse of B, B^-1. This will give us:
B^-1 Bx = B^-1
1
2
3
Since the product of a matrix and its inverse is the identity matrix, I, we can simplify the left side of the equation to:
Ix = B^-1
1
2
3
And since the product of the identity matrix and any vector is just the vector itself, we can simplify further to:
x = B^-1
1
2
3
Now, we can plug in the given values for B^-1 and the right side of the equation to find the solution for x:
x =
-1 0 1
2 2 0
1 0 1
*
1
2
3
Multiplying the matrices gives us:
x =
(-1)(1) + (0)(2) + (1)(3)
(2)(1) + (2)(2) + (0)(3)
(1)(1) + (0)(2) + (1)(3)
Simplifying further gives us:
x =
2
6
4
So, the solution of the equation Bx = 1 2 3 is x = 2 6 4
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The difference between the two outputs of a firm is 2 . Eight times the larger quantity is 10 times the smaller quantity. Write a system of equations describing the given conditions. Then solve the system and find the two output levels. Letx^represent the larger quantity andyrepresent the smaller quantity. Type the equation for "The difference between two quantities is 2." 0. (Enter vour response as an equation in terms ofxandy
The first equation describing the given conditions is x - y = 2, as the difference between the two outputs of a firm is 2. The second equation is 8x = 10y, as eight times the larger quantity is 10 times the smaller quantity. The system of equations can be written as:
x - y = 2
8x = 10y
To solve the system, we can use the substitution method. First, we can solve for x in the first equation:
x = y + 2
Then, we can substitute this expression for x into the second equation:
8(y + 2) = 10y
Distributing the 8 gives:
8y + 16 = 10y
Subtracting 8y from both sides gives:
16 = 2y
Dividing by 2 gives:
y = 8
Finally, we can substitute this value of y back into the first equation to find x:
x = 8 + 2 = 10
So the two output levels are x = 10 and y = 8.
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