Answer:
Ahmed sold (7/10) of a mango
Step-by-step explanation:
I don't know how one sells 3/10 or 2/5 of a mango, but he will have sold:
3/10 + 2/5
3/10 + (2/5)*(2/2) [Convert the denominator in 2/5 to 10, so that we can add it to 3/10]
3/10 + (4/10)
(7/10) Ahmed sold (7/10) of a mango
Determine the type of dilation shown and the scale factor used.
Enlargement with scale factor of 1.5
Enlargement with scale factor of 2.5
Reduction with scale factor of 1.5
Reduction with scale factor of 2.5
The type of dilation and scale factor in the figure shown is
Enlargement with scale factor of 2.5How to find the type of dilationScale factors are used to increase or decrease image. The situation of increment is usually called magnifying or enlargement.
The given problem is enlargement since the preimage is smaller than the image. Also the scale factor will be greater than 1
Taking a point of reference say side 6 in the preimage and side 15 in the image and solve for the factor, assuming the factor is k
6k = 15
k = 15/6
k = 2.5
hence we say that the scale factor is 2.5
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Answer: Enlargement with scale factor of 2.5
Step-by-step explanation: I took the quiz so you don't have too!
The temperature changed from 3 degrees below zero at midnight to 7 degrees below
zero at 2 a.m. How much did the temperature decrease?
The temperature has decreased by 4 degrees Celsius.
We have a temperature change from 3 degrees below zero at midnight to 7 degrees below zero at 2 a.m.
We have to determine how much did the temperature decrease.
' The temperature of an area is x degrees below zero '. What does this statement mean ?A temperature of x degrees below zero means that the temperature of an area is equal to = - x degrees i.e., T = 0 - x = - x.
According to question -
Initial Temperature T(i) = 0 - 3 = - 3 degrees
Final temperature T(f) = 0 - 7 = - 7 degrees
Change in temperature ΔT = T(f) - T(i) = -7 - (-3) = -7 + 3 = - 4
Hence, the temperature has decreased by 4 degrees Celsius.
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Edgar cannot sleep because he is terribly worried about his research paper. So edgar decides to get out of bed and continue working on the paper. Although he stays up to nearly 3 a. M. , he is relieved that it is done and easily falls off to sleep. In the future, edgar will be more likely to finish his work before going to bed so that he can avoid the worry and sleeplessness. Such behavior is an example of.
To sum up, Edgar's behavior is an example of positive reinforcement as he has learned to associate finishing his work before going to bed with positive consequences.
Edgar's behavior is an example of a learning process known as operant conditioning. Operant conditioning is the concept that we learn to associate our behavior with its consequences, either positive or negative. We are motivated by rewards, such as praise, and punishments, such as criticism, that we experience as a result of our behavior.
In Edgar's case, his relief and ability to fall asleep after completing his research paper can be considered a reward. Thus, he has been conditioned to associate finishing his work before going to bed with positive consequences. This learning process is an example of positive reinforcement.
Positive reinforcement, in which a positive stimulus is used to encourage a desired behavior, is the most effective way to promote good behavior and discourage undesirable behavior. Positive reinforcement can take many forms, including praise, recognition, and tangible rewards.
By contrast, negative reinforcement, which involves removing an unpleasant stimulus, can also be used to encourage a desired behavior, but it is not as effective as positive reinforcement in the long term.
To sum up, Edgar's behavior is an example of positive reinforcement as he has learned to associate finishing his work before going to bed with positive consequences.
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Negative StartFraction one-half EndFraction y equals StartFraction one-half EndFraction x plus 5 and y equals 2 x plus 2.Y = x + 5 and y = 2x + 2.
Answer:
The solution of the system of equation is (3,8)
Step-by-step explanation:
We are given that
\(y=x+5\)...(1)
\(y=2x+2\)...(2)
We have to graph the system of linear equation.
For equation (1)
Substitute x=0
\(y=5\)
Substitute y=0
\(x=-5\)
Therefore, we obtained two points (0,5) and (-5,0) for equation (1).
For equation (2)
Substitute x=0
\(y=2\)
Substitute y=0
\(2x=-2\)
\(x=-1\)
Therefore, we obtained two points (0,2) and (-1,0) for equation (2).
Now, we find intersection point of two equation
Substract equation (2) from (1)
\(x=3\)
\(x=3\)
Substitute x=3 in equation (1)
\(y=3+5=8\)
The intersection point of two equation is at (3,8).
Hence, the solution of given system of equation is (3,8).
Answer:
(-4,-6)
Step-by-step explanation:
The intersection point is (-4,-6) when you both equations in the calculator. The person who answered this first is wrong.
If dr. robinson rejects the null hypothesis after observing a test statistic which exceeds the critical value at the .05 level, there is_____________________________________________.
If dr. Robinson rejects the null hypothesis after observing a test statistic that exceeds the critical value at the .05 level, there is a 5% chance that the null hypothesis is actually true.
What is a Null Hypothesis?This refers to the hypothesis that there is no significant difference between specified populations, where any observed difference is due to sampling or experimental error.
Hence, we can see that if dr. Robinson rejects the null hypothesis after observing a test statistic that exceeds the critical value at the .05 level, there is a 5% chance that the null hypothesis is actually true.
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Damon drew a scale drawing of a swimming pool. The scale he used was 1 inch : 9 feet. The diving board is 2 inches long in the drawing. How long is the actual diving board?
Since the scale utilized in the draw is 1 inch : 9 feet and the diving board is 2 inches, we need to multiply the 2 inches by the scale:
\(2\cdot9ft=18ft\)The actual diving board is 18ft long
Service cable mounted in contact with a building must be supported at intervals not exceeding _____.
a) 4 ft. b) 3 ft. c) 30 in. d) 24 in.
The correct option a) 4 ft. , Service Cable that is attached to a building must be sustained at intervals no greater than 4 ft..
Explain the term service cable?Service cables mounted in close proximity to a building must be supported at no more than four-foot intervals.
The cables must be held in place firmly and uniformly distributed weight and strain must not be placed on the cables.Additionally, it stops the wires from sagging and drooping with time, which could increase the chance of harm or breakage. The wires need to be properly supported in order to avoid rubbing against it or coming into touch with other items, which can lead to wear and tear or even electrical dangers. To prevent cables from becoming twisted or knotted, appropriate support is also required.Thus, service cable that is attached to a building must be sustained at intervals no greater than 4 ft.
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Please help me with number 11
Answer:
€0.78
Step-by-step explanation:
To find Euros per Dollar, divide euros by dollars:
€175/$225 = 7/9 €/$ ≈ 0.78 €/$
Kareem received about €0.78 for each dollar exchanged.
Is (2, 4) a solution to this system of inequalities?
y < 8x + 8
y ≥ x + 1
Answer:
yes
Step-by-step explanation:
4<8*2+8
4<16+8
4<24
4 ≥2+1
4 ≥3
The picturegram shows information about CDs sold in a shop.
1 . How manny CDs were sold on Wednesday | Key = 3 |
2. How manny more CDs were sold on Thursday than Wednesday?
**If you know the answer let me know!**
Answer:
i believe number 1 is 18 and number 2 is 9.
Step-by-step explanation:
if one full circle represents 6 CDs then on wednesday 18 Cds were sold because 6+6+6=18 and on thursday they sold 9 more Cds than on wednesday because they sold 6+6+6+6+3 which equals 9.
Jorge has 23 fish for his dog sled team that he wants to divide into smaller pieces. How many pieces of fish would there be if Jorge divided each fish into hundredths?
2,300
230
2.3
0.23
Answer:
2,300
Step-by-step explanation:
into hundredths.
that means each fish is cut into 100 pieces.
so, there would be
23 × 100 = 2,300
pieces of fish.
Answer:
A, 2,300.
Step-by-step explanation:
hope this helps lol
find the first four terms of the taylor series for the function 2x about the point a=1. (your answers should include the variable x when appropriate.)
The first four terms of the Taylor series for the function (2x) about the point (a=1) are (2x + 2x - 2).
What are the initial terms of the Taylor series expansion for (2x) centered at (a=1)?To find the first four terms of the Taylor series for the function (2x) about the point (a = 1), we can use the general formula for the Taylor series expansion:
\(\[f(x) = f(a) + f'(a)(x-a) + \frac{f''(a)}{2!}(x-a)^2 + \frac{f'''(a)}{3!}(x-a)^3 + \ldots\]\)
Let's calculate the first four terms:
Starting with the first term, we substitute
\(\(f(a) = f(1) = 2(1) = 2x\)\)
For the second term, we differentiate (2x) with respect to (x) to get (2), and multiply it by (x-1) to obtain (2(x-1)=2x-2).
\(\(f'(a) = \frac{d}{dx}(2x) = 2\)\)
\(\(f'(a)(x-a) = 2(x-1) = 2x - 2\)\)
Third term: \(\(f''(a) = \frac{d^2}{dx^2}(2x) = 0\)\)
Since the second derivative is zero, the third term is zero.
Fourth term:\(\(f'''(a) = \frac{d^3}{dx^3}(2x) = 0\)\)
Similarly, the fourth term is also zero.
Therefore, the first four terms of the Taylor series for the function (2x) about the point (a = 1) are:
(2x + 2x - 2)
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Can Someone help me?
Step-by-step explanation:
first- b
swcond- a
third- c
What is the simple interest rate if p = $4000, t = 2 years and I = $320
Answer:
Step-by-step explanation:
interest was $160 for one year.
160/4000 = 0.04 = 4%
will mark brainliest
ONE question with picture included! no need to do part c :)
Answer:
x + y = 24
16x + 20y = 434
x = 11.5
y = 12.5
Step-by-step explanation:
Part A:
x + y = 24
16x + 20y = 434
Part B:
simplify the second equation to find a "kind of answer" to a variable,
so we could simplify it to either y = 21.7 - 0.8x or x = 27.125 - 1.25y
in this case we will use y = 21.7 - 0.8x
substitute your new value of y into the first equation:
x + (21.7 - 0.8x) = 24
now, we can solve this to find the actual value of x: x = 11.5
so plug in your real x value to the simplified second equation (y = 21.7 - 0.8x)
you get y = 12.5
this tells you how many hours the machine spent on making each type of item
A bookstore sells books at 25% profit calculate the percentage of sales price to cost price ?
Answer:
Cost price=100%
Step-by-step explanation:
A group of students has a total of 29 pencils and everyone has at least one pencil. six students have 1 pencil each ,five students have 3 and the rest have 2 .how many student shave only 2pencils
Answer:
18 students have only 2 pencils
Step-by-step explanation:
There is 29 students. six + five is eleven. Subtract 29 - 11 which is 18
2
Given the coordinates, classify AQRT by by its sides. Q(-2, -1), R(1, 5), T(-8,-4)
If necessary, round to the tenths place.
QR
Classify:
RT=
QT
To classify a quadrilateral by its sides, we need to calculate the distance between each pair of its vertices.
The distance between Q and R is the square root of ((1-(-2))^2 + (5-(-1))^2) = square root of (3^2 + 6^2) = square root of (9+36) = square root of 45 = 6.7
The distance between R and T is the square root of ((-8-1)^2 + (-4-5)^2) = square root of (9+81) = square root of 90 = 9.5
The distance between Q and T is the square root of ((-8+2)^2 + (-4+1)^2) = square root of (10+5) = square root of 15 = 3.87
If the quadrilateral is a rectangle, two sides of it have to be equal, so in this case, AQRT is not a rectangle.
If the quadrilateral is a rhombus, all four sides have to be equal, so in this case, AQRT is not a rhombus.
If the quadrilateral is a square, all four sides have to be equal, so in this case, AQRT is not a square.
If the quadrilateral is a trapezoid, two adjacent sides are parallel, so in this case, AQRT is not a trapezoid.
If the quadrilateral is a parallelogram, two pairs of opposite sides are parallel, so in this case, AQRT is not a parallelogram.
If the quadrilateral is a kite, two pairs of sides have the same length, so in this case, AQRT is not a kite.
So the only possible classification is that AQRT is a general quadrilateral.
so we have:
QR = 6.7
RT = 9.5
QT = 3.87
Grapes cost $1.87 per pound. How much would it cost for 4.25 pounds of grapes?
Answer:
7.95$
Step-by-step explanation:
1.87 $ per 1 lb
1.87 * 4.25 = 7.95$
Answer:
$7.95 for 4.25 lbs. of grapes
Step-by-step explanation:
so your going to multiply $1.87 by 4.25 to get the total amount of money needing to be paid in or der to buy the 4.25 lbs. of grapes:
$1.87 * 4.25 = 7.9475
now turning it into money by rounding to the hundredths place:
7.9475 = $7.95
So you would have to pay $7.95 for 4.25 lbs. of grapes but logically you would bring 8 dollars to buy it, but down to the cents it would be $7.95.
Find the general solution of the following differential equation. Primes denote derivatives with respect to x. 9x(x + y)y' = 9y(x - 6y) The general solution is (Type an implicit general solution in the form F(x,y) = C, where C is an arbitrary constant. Type an expression using x and y as the variables.)
The general solution to the given differential equation is\(y = (C_1)/(x(x-6y))\)where C_1 is the constant of integration.
The given differential equation is \(9x(x+y)y'=9y(x-6y)\)
Step 1: We can simplify this equation to get y' and dy/dx by dividing both sides by
9xy(x−6y) = (x−6y)dy/dx + y
=> dy/dx = y/[x(x−6y)] − 1/(x−6y)
Now, we can rewrite the differential equation as dy/dx = y/[x(x−6y)] − 1/(x−6y)
Step 2: This is a separable differential equation.
We can write it in the form
dy/dx + 1/(x−6y) = y/[x(x−6y)] Multiplying by the integrating factor μ(x) = e∫(1/(x−6y))dx gives us
\(\mu(x)dy/dx + [\mu(x)/(x-6y)] = \mu(x)y/[x(x-6y)]\)
We can simplify this as \(d/dx[\mu(x)y] = \mu(x)y/[x(x-6y)]\)
Integrating both sides, we get
ln|y| = ∫μ(x)/(x(x−6y)) dx + C where C is the constant of integration
Step 3: Now, we need to find the integrating factor μ(x). We can writeμ(x) = e∫1/(x−6y) dxSo, we substitute x−6y = t and get dx = dt + 6dy
So,
\(\mu(x) = e\int1/(x-6y) dx\)
= e∫1/t dt
= e^(ln|t|)
= |t|
= |x−6y|
Step 4: Substituting for μ(x) and simplifying the integral, we get
\(ln|y| = -(1/6)ln|x-6y| - (1/6)ln|x| + C'\)
=> \(ln|y| = ln((C_1)/(x(x-6y)))\)
=> \(y = (C_1)/(x(x-6y))\)
Where C_1 = e^C' is a new constant of integration \(y = (C_1)/(x(x-6y))\)
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Jerry is mowing a rectangular lawn which is 77 feet north to south by 83 feet east to west. His lawn mower cuts a path 18 inches wide. Jerry mows the grass by cutting a path from west to east across the north side of the lawn and then making a right turn cutting a path along the east side of the lawn. When he completes mowing each side of the lawn, he continues by making right turns to mow a path along the next side. How many right turns will he make?
Can someone please help me with this math problem please:):)
Answer:
y = 126° + 29° = 155°
Step-by-step explanation:
I think this may be a solution:
126°+29°=155°
So, y=155°
How do you represent complex numbers in GeoGebra?
Complex numbers can be represented in GeoGebra using the complex number constructors, specifically the complexnumber(real,imaginary) command.
This command creates a complex number with the given real and imaginary components. For example, a complex number with a real part of 3 and an imaginary part of 4 can be written as complexnumber(3,4). This will create a complex number with a real part of 3 and an imaginary part of 4, represented as 3+4i. GeoGebra also contains other commands for manipulating complex numbers, such as the conjugate(z) command, which produces the conjugate of the given complex number z, and the re(z) and im(z) commands, which extract the real and imaginary components of the given z, respectively. Together, these commands allow GeoGebra to effectively represent and manipulate complex numbers.
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Pleaseee help! I WILL MARK BRAINLIEST.
The approximate weights of two animals are 4.23 x 103 lbs. and 8.7 x 103 lbs. Find the total weight of the two animals. Write the final answer in scientific notation with the correct number of significant digits. 1.29 x 104 lbs. 1.3 x 104 lbs. 5.1 x 103 lbs. 12 x 103 lbs.
The total weight of the two animals is 1.3 x 10^4 lbs.
How to determine the total weight of the two animals?The given parameters are
Animal 1 = 4.23 x 103 lbs.
Animal 2 = 8.7 x 103 lbs.
Rewrite the parameters properly
Animal 1 = 4.23 x 10^3 lbs.
Animal 2 = 8.7 x 10^3 lbs.
The total weight of the two animals is calculated as
Total weight = Animal 1 + Animal 2
This gives
Total weight = 4.23 x 10^3 lbs + 8.7 x 10^3 lbs.
Factor out 10^3 lbs
Total weight = (4.23 + 8.7) x 10^3 lbs.
Evaluate the sum
Total weight = 12.93 x 10^3 lbs.
Rewrite as
Total weight = 1.293 x 10^4 lbs.
Approximate
Total weight = 1.3 x 10^4 lbs.
Hence, the total weight of the two animals is 1.3 x 10^4 lbs.
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write a paragraph answering the following question. you may need more room on the next page. (1) identify the independent variable and dependent variable in this lab. (2) refer to your data and explain what it shows you. (3) error analysis: write out at least three ways your data may not be completely accurate. include a specific solution to prevent each error in the future.
In this lab, the independent variable is the physical parameter being manipulated to determine its relationship with the dependent variable. The data from the lab shows that there is a linear relationship between the two variables, which can be seen in the graph provided.
However, there are several sources of error that could be present in the data. First, if the data was collected by hand, there is a possibility of human error due to misreading or recording incorrect values. To prevent this, it is important to double-check all data points before recording them. Additionally, factors such as the accuracy of the measuring device used and the precision of the data collected could lead to discrepancies in the results.
To minimize these errors, it is important to use a device that is accurate and precise, and record data to the correct level of precision. Finally, changes in the environment can also lead to inaccurate results, such as the temperature and humidity of the lab. To prevent this, it is important to keep the lab environment as consistent as possible and to record any variations in the environment that could affect the results.
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Plssss help 30 point!!!
A survey of 100 parks showed the following.
37 had camping.
28 had camping and hiking trails.
69 had hiking trails. 33 had hiking trails and biking paths.
58 had biking paths. 15 had hiking trails, biking paths and camping.
22 had camping and biking paths.
Answer:
A) 2
B)109
c) 4
d)71
I'm a hundred percent sure
Step-by-step explanation:
Draw the Venn diagram
describe the graph of the solution
First, we want to note two things:
We have a solid circle at -10, so -10 IS part of the solution.We have shading to the right of -10, meaning we also need to include numbers to the right of -10, or numbers greater than -10.
We can describe this with an inequality: x ≥ -10
Be sure you use ≥ and not >, since -10 is included.
We can describe this with interval notation: [ -10, infty )
Be sure you use [ and not ( on -10, since -10 is included.
You can also use set-builder notation: { x | x ≥ -10 }
The sun of two numbers is 7 and a different 1 what are the two numbers
Answer:
3 and 4
Step-by-step explanation:
given that the difference is 7, two numbers that add up to 7 are 3 and 4.
Dara and Jo share £420 in the ratio 2:5.
Calculate how much Dara and Jo receive each.
Answer:
Dara receives £120 and Jo receives £300
Step-by-step explanation:
D:J
2:5
5+2=7
£420÷7= £60
1 on the ratio= £60
Dara:
£60 × 2= £120
Jo:
£60× 5= £300
a pair of dice are thrown. the total number of spots is like
When throwing a pair of dice, there are a total of 6 sides on each die, which gives us 6 x 6 = 36 possible outcomes. The total number of spots (the sum of the numbers on the dice) can range from 2 to 12.
When a pair of dice are thrown, there are three possible outcomes for the total number of spots: 1) The sum of the spots on both dice is less than 7. This occurs when the first dice lands on a number between 1 and 6, and the second dice lands on a number that will make the total less than 7 (e.g. if the first dice lands on 3, then the second dice must land on a number less than or equal to 3). 2) The sum of the spots on both dice is exactly 7. This occurs when the first dice lands on a number between 1 and 6, and the second dice lands on the number that will make the total equal to 7 (e.g. if the first dice lands on 2, then the second dice must land on 5). 3) The sum of the spots on both dice is greater than 7. This occurs when the first dice lands on a number between 1 and 6, and the second dice lands on a number that will make the total greater than 7 (e.g. if the first dice lands on 4, then the second dice must land on a number greater than 3).
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