Answer:
see below
Step-by-step explanation:
F(x) = 1,200x + 400
The y intercept is the value of the function when the x value is o
When x = 0 the y value is 400
It is the initial value of the function
Diego is solving this system of equations:
4x + 3y = 10
-4x + 5y = 6
Here is his work:
4x + 3y = 10
-4x + 5y =6
-4x + 5y = 6 +
0 + 8y = 16
y = 2
4x + 3(2) = 10
4x + 6 = 10
4x = 4
x = 1
The solutions of the equations are x = 1 and y = 2
The system of equations are
4x + 3y = 10
-4x + 5y = 6
Here we have to use the elimination method. Eliminate the x term and find the value of y term
Add both equation
3y + 5y = 10 +6
Add the like terms
8y = 16
y = 16 / 8
Divide the terms
y = 2
Substitute the value of x in the first equation
4x + 3y = 10
4x + 3×2 = 10
Multiply the terms
4x + 6 = 10
4x = 10 - 6
4x = 4
x = 4 / 4
Divide the terms
x = 1
Hence, the solutions of the equations are x = 1 and y = 2
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A total of 27 students are in your class. There are nine more males than females.
How many females are in your class?
1. The tiles shown are placed in a bag. You randomly select one of the tiles,
return it to the bag, and then randomly select another tile. What is the
probability that the first number divided by the second number is greater
than zero?
the numbers:
-2
-1
2
1
Therefore, the probability that the first number divided by the second number is greater than zero is 1/3.
What is probability?In mathematics, probability is a measure of the likelihood or chance of an event occurring. It is a way of quantifying uncertainty and expressing how likely it is that a particular outcome will occur. Probability theory is used in a wide range of fields, including mathematics, statistics, physics, engineering, economics, and social sciences. It is used to model and analyze random phenomena, make predictions, and estimate the likelihood of certain outcomes.
Here,
Since we are returning the first tile to the bag before selecting the second one, the two selections are independent of each other.
There are two cases to consider:
Case 1: We select a positive number on the first draw.
The probability of selecting a positive number on the first draw is 2/3, since there are two positive numbers (-12 and 1) out of a total of three tiles.
Regardless of what number we select on the first draw, there is only one negative number (-2) in the bag, so the probability of selecting a negative number on the second draw is 1/3.
Therefore, the probability of selecting a positive number on the first draw and a negative number on the second draw (which results in a quotient greater than zero) is:
(2/3) x (1/3) = 2/9
Case 2: We select the negative number (-2) on the first draw.
The probability of selecting the negative number (-2) on the first draw is 1/3.
In this case, we must select the positive number on the second draw in order for the quotient to be greater than zero. There is only one positive number (1) in the bag, so the probability of selecting it on the second draw is 1/3.
Therefore, the probability of selecting the negative number (-2) on the first draw and the positive number on the second draw (which results in a quotient greater than zero) is:
(1/3) x (1/3) = 1/9
Since these are the only two cases that satisfy the condition, the overall probability is the sum of the probabilities of these two cases:
2/9 + 1/9 = 3/9 = 1/3
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ABCD is a rectangle. AB = 2x + y, BC = x + 2,
DC = x + 12, and AD = y + 6. Find AB.
=
Answer:
See attached image
Step-by-step explanation:
See attached image
Select the correct answer.
Answer:it might be A
shift the market price facing a competitive firm to a level where the firm makes an economic profit in the short run.
The price should be higher than the AVC and ATC in order to make a profit in the short term. Therefore, in order to achieve the requisite profit, the MR curve must rise above cost = 7.
When businesses in a cutthroat sector start making money, it opens the door for more businesses to enter the market, which leads to a shift to the right in the supply curve, a drop in price, and the return of all businesses to a state of no economic profit.
If the market price is lower than the average total cost, a company will experience positive economic profit in the short term.
In the short run, a monopolistically competitive firm optimises profits or avoids losses by producing the amount where marginal revenue equals marginal cost. If the average total cost is less than the market price, the company will make a profit.
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A used-car costs $5,000. You figure you can get 4 years out of it. You drive 10,000 miles per year. Your car insurance costs $1,200 per year. You figure you'll spend $400 per year on maintenance. Gas costs $3 per gallon, and the car gets 25 miles per gallon. What will your average cost (all costs included) per mile be over the 4 years?
Answer:
26,800
Step-by-step explanation:
Im not sure but thats what I got
Answer:
$0.405
I just took the test.
What is the slope of line a?
Answer:
-1/5
Step-by-step explanation:
Help please!! I’ll give brainliest if you show work as well. Thank you!!!
Answer:
TWO CRACKERS
Step-by-step explanation:
I'm assuming they want to find x. Here we see that these two are similar triangles, so the sides are reflective. 5x/5 should be equal to 4/x, so 5x/5 = 4/x. If we use cross multiplying we get 5x^2 = 20. divide both sides by 5 and we get x^2 = 4 or x = 2.
Hope this helped
1/2and8/16 is Equivalent or not Equivalent
Answer:
They are equivalent.
Step-by-step explanation:
The daily water consumption for an Ohio community is normally distributed with a mean consumption of 519,645 gallons and a standard deviation of 71,564 gallons. The community water system will experience a noticeable drop in water pressure when the daily water consumption exceeds 782,238 gallons. What is the probability of experiencing such a drop in water pressure
Answer:
0.0001
Step-by-step explanation:
The computation of the probability of experiencing such a drop in water pressure is shown below:
Given that
mean = 519,645 gallons
Standard deviation = 71,564 gallons
Now the probability is
= 1 - p (x - mean ÷ standard deviation < 782,238 - 519,645 ÷ 71,564)
= 1 - p(z<3.67)
= 1 - 0.9999
= 0.0001
8. If3:8=c:56, the value of c will be
The scale for the second values is 56/8 = 7
C = 3 x 7 = 21
C= 21
What is the domain of the function represented by this graph? the graph of a quadratic function y = x^2 – 4 with a minimum value at the point (0,-4) A. -2 ≤ x ≤ 2 B. x ≥ 4 C. x ≤ 0 D. all real numbers Reset
Domain of the function represented by the graph of a quadratic function y = \(x^2\) – 4 with a minimum value at the point (0,-4) is all real numbers.
The correct answer is option D.
To determine the domain of the quadratic function y = \(x^2\) - 4, we need to consider the x-values for which the function is defined. Since a quadratic function is defined for all real numbers, the domain of this function is "all real numbers."
Let's analyze the given function and its graph to understand why the domain is "all real numbers."
The function y = \(x^2\) - 4 represents a parabola that opens upward, which means it extends infinitely in both positive and negative x-directions. The vertex of the parabola is at the point (0, -4), indicating that the minimum value of the function occurs at x = 0.
Since there are no restrictions or limitations on the x-values for which the function is defined, the domain is unrestricted and encompasses all real numbers. In other words, the function can be evaluated and calculated for any real value of x, whether it is a negative number, zero, or a positive number.
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Jermaine kicked a soccer ball at a speed of 24 feet per second. If the ball never leaves the ground, then it can be represented by the function H(t) = −16t2 + 24t. Determine the time the ball traveled. (1 point) t = 24 seconds t = 8 seconds t = 1.5 seconds t = 0.67 seconds
The time that the ball traveled is given as follows:
1.5 seconds.
How to obtain the time traveled by the ball?The quadratic function determining the ball's height after t seconds is given as follows:
H(t) = -16t² + 24t.
The roots of the quadratic function in this problem are given as follows:
-16t² + 24t = 0.
16t² - 24t = 0
8t(2t - 3) = 0.
Hence we apply the factor theorem as follows:
8t = 0 -> t = 0.2t - 3 = 0 -> 2t = 3 -> t = 1.5.Hence the time is given as follows:
1.5 - 0 = 1.5 seconds.
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Consider the problem of finding the shortest path to a destination city from a start city using roads (e.g., traveling from Arad to Bucharest) using A* search. Which of these heuristics are admissible? There could be multiple such heuristics, select all for full credit. Selecting an inadmissible heuristic has a -50% penalty. Select one or more: I a. Manhattan distance ("go first east/west and then north/south") between a city and start city b. Euclidean distance ("as the crow flies") between a city and destination city c. Twice the Euclidean distance ("as the crow flies") between a city and destination city d. heuristic is o for every city e. heuristic is 1 for every city f. Euclidean distance ("as the crow flies") between a city and start city g. Manhattan distance ("go first east/west and then north/south") between a city and destination city
Heuristic is 0 for every city Heuristic is 1 for every city Selecting an inadmissible heuristic has a -50% penalty.
To find the shortest path to a destination city from a start city using roads (e.g., traveling from Arad to Bucharest) using A* search, the following heuristics are admissible:
Manhattan distance ("go first east/west and then north/south") between a city and start city.
Euclidean distance ("as the crow flies") between a city and destination city.
Euclidean distance ("as the crow flies") between a city and start city.
Manhattan distance ("go first east/west and then north/south") between a city and destination city.
The following heuristics are inadmissible:
Twice the Euclidean distance ("as the crow flies") between a city and destination city.
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Devon is five years younger than Sydney the sum of their ages is 57 what is Sydney
Answer:
Sydney is 31 years old.
Step-by-step explanation:
LET age of Devon be x years
and let age of Sydney be y years
if x=y-5-------(i)
x+y= 57 (sum)
Using (i)
(y-5)+y=57
2y=62
y=31
Which of the following is an equation? 8x or 8x=2 or 8x-5 or 8÷x?
Answer:
2nd one is the equation.8x=2
James has a collection of 1500 country stamps. Of
these stamps, 15% are from England, 40% are from
South Korea, and the rest are from Canada.
How many stamps in James' collection arefrom
Canada?
Answer:
15% plus 40% would be 65%. its just what is left of 100%. The answer is 35%
Step-by-step explanation:
this is really easy. Try harder.
Answer:
525
Step-by-step explanation:
Add the available percent of stamps. 40% + 15%= 65%, a percent is over 100, so 65/100 of 1500 basically means 65/100 x 1500 which equals to 525.
Is 3/2 greater than 1? Or Less than
Answer:
3/2 is greater than 1
Step-by-step explanation:
A little trick to immediately know if a number is more or less than when it involves fractions versus whole numbers is that improper fractions will always be greater than 1.
If you want to confirm this, dividing 3/2 equals 1.5, ergo 1.5 > 1.
In essence, improper fractions will always represent a number greater than one contrasted to proper fractions because if you put it on a perspective (let's say you have 13 pie slices but you only needed 12, that means there is a pie slice that's extra that makes it greater than the original pie slices).
Hope that helps :)
What is the image of point (-6,1) after the reflection over the line x=2
Answer:
(-6,3)
Step-by-step explanation:
reflect over x=2, so you. move Y up by 2. 1+2 =3
4. In a lab experiment, 5300 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to double every 12 hours. Write a function showing the number of bacteria after t hours, where the hourly growth rate can be found from a constant in the function.
Round all coefficients in the function to four decimal places. Also, determine the percentage of growth per hour, to the nearest hundredth of a percent.
The function representing the number of bacteria after t hours is N(t) = 5300 * (1 + 0.0592)^t, and the growth rate per hour is approximately 5.92%.
To represent the number of bacteria after t hours, we can use the exponential growth formula:
N(t) = N₀ * (1 + r)^t,
where N(t) is the number of bacteria after t hours, N₀ is the initial number of bacteria, r is the hourly growth rate, and t is the time in hours.
In this case, the initial number of bacteria is 5300, and the hourly growth rate can be determined from the doubling time of 12 hours. The growth rate can be calculated using the formula:
r = 2^(1/t_double) - 1,
where t_double is the doubling time in hours.
Substituting the given values, we have:
r = 2^(1/12) - 1 ≈ 0.0592.
Now we can write the function for the number of bacteria after t hours:
N(t) = 5300 * (1 + 0.0592)^t.
To determine the percentage of growth per hour, we can calculate the relative growth rate as a percentage:
percentage_growth = r * 100 ≈ 5.92%.
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Write a function rule for
Answer:
x^2
Step-by-step explanation:
1^2=1
2^2=4
3^2=9
helpppppppppppppppppp
Answer:
step 10 5 to the 10th power
Determine the HCF and LCM of 28 and 72
Answer:
(HCF) of 72, 28 is 4.
LCM=504
Step-by-step explanation:
Fred brought a shirt and a wallet for a total of 34.26 before tax. The price of the wallet was $15 less than the price of the shirt. What was the price of the shirt?
Answer:
The price of the shirt is $24.63.
Step-by-step explanation:
Let's assume the price of the shirt is x. Then the price of the wallet will be x - 15. We know that the total cost before tax is 34.26, so we can set up the equation:
x + (x - 15) = 34.26
Simplifying, we get:
2x - 15 = 34.26
Adding 15 on both sides:
2x = 49.26
Dividing by 2:
x = 24.63
Therefore, the price of the shirt is $24.63.
Use elimination method to solve the system of equations
Answer:
x=1/4, y=-1/2, z=1/3
Step-by-step explanation:
the answer can't be understood through typing check the age above
Does anyone know how to solve it?
Answer:
x°=38°
y°=22°
Step-by-step explanation:
The angle that lies between a tangent and a chord is equal to the angle subtended by the same chord in the alternate segment (see image below of example of this if this explanation's unclear). This means:
<UDC=<DAC
38°=x°
The circle contains a cyclic quadrilateral ABCD (a shape with four sides within a circle whose corners are all on the circle edge). Opposite angles in a cyclic quadrilateral total 180°, which means:
<ADC+<ABC=180°
60+<ABC=180°
<ABC=120°
Since DA is parallel to CB, <DAC and <ACB are alternate interior angles and therefore equal, which means <ACB=<DAC=x°=38°
The angles in a triangle always add to 180°. Considering triangle ABC, this means:
<CAB+<ABC+<ACB=180°
y°+120°+38°=180°
y°=180°-158°=22°
I need help please if u help me maybe we can be friends ? :’D its math:
Evaluate the expression 10 + (8 - 4)2 ÷ 2.
options:
1. 10
2. 9
3. 1
4. 18
Answer:
I think ans is 18 but i am not sure
Answer:
This involve bodmas..so bracket first..(8-4) is 4 so we will get 10+4*2/2
so multiplication next
10+8/2
10+4=14
A bucket contains 72 red, 48 blue, 48 green, and 48 yellow crayons. The art teacher also has 120 pieces of drawing paper. What is the largest number of identical kits the art teacher can make with all of the crayons and all of the paper?
The art teacher can make a maximum of 24 identical kits using all the crayons and drawing paper for proper distribution.
To determine the largest number of identical kits the art teacher can make using all the crayons and drawing paper, we need to find the greatest common divisor (GCD) of the quantities.
The GCD represents the largest number that can divide all the quantities without leaving a remainder.
The GCD of the quantities of crayons can be found by considering the prime factorization:
72 = 2³ × 3²
48 = 2⁴ × 3
48 = 2⁴ × 3
48 = 2⁴ × 3
The GCD of the crayons is 2³ × 3 , which is 24.
Now, we need to find the GCD of the quantity of drawing paper:
120 = 2³ × 3 × 5
The GCD of the drawing paper is also 2³ × 3 , which is 24.
Since the GCD of both the crayons and drawing paper is 24, the art teacher can make a maximum of 24 identical kits using all the crayons and drawing paper.
Each kit would contain an equal distribution of crayons and drawing paper.
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The graph below shows a company's profit ) , in dollars , depending on the price of erasers , in dollars , sold by the company Part A : What do the x - intercepts and maximum value of the graph represent ? What are the intervals where the function is increasing and decreasing , and what do they represent about the sal and profit ? ( 4 points ) Part B : What is an approximate average rate of change of the graph from 1 to 4 , and what does this rate represent ? ( 3 points ) Part C : Describe the constraints of the domain . ( 3 points )
Answer:
c Describe the constraints of the domain .
Step-by-step explanation:
I know I'm correct