Answer:
9
Step-by-step explanation:
explain more detal ples no get it vry hards
Which finds the solution to the equation represented by the model below?
O removing 1 x-tile from each side
O removing 3 unit tiles from the right side
O adding 3 positive unit tiles to each side
O arranging tiles into equal groups to match the number of x-tiles
Answer:
removing 1 x-tile from each side.
Step-by-step explanation:
the question is asking to isolate x and the equation is 2x = x + 3.
to isolate x subtract each side by an x-tile
Answer:
The answer is A
Step-by-step explanation:
A message is coded into the binary symbols 0 and 1 and the message is sent over a communication channel.
The probability a 0 is sent is 0.4 and the probability a 1 is sent is 0.6. The channel, however, has a random error that
changes a 1 to a 0 with probability 0.1 and changes a 0 to a 1 with probability 0.2. Show your work below.
a. What is the probability a 1 is received?
b. If a 1 is received, what is the probability a 0 was sent?
Answer:
A: the probability that a 1 is received is 0.56.
B: the probability that a 0 was sent given that a 1 is received is (2/25) * (1 - P(0 sent)).
Step-by-step explanation:
To solve this problem, we can use conditional probabilities and the concept of Bayes' theorem.
a. To find the probability that a 1 is received, we need to consider the two possibilities: either a 1 was sent and remained unchanged, or a 0 was sent and got flipped to a 1 by the random error.
Let's denote:
P(1 sent) = 0.6 (probability a 1 is sent)
P(0→1) = 0.2 (probability a 0 is flipped to 1)
P(1 received) = ?
P(1 received) = P(1 sent and unchanged) + P(0 sent and flipped to 1)
= P(1 sent) * (1 - P(0→1)) + P(0 sent) * P(0→1)
= 0.6 * (1 - 0.2) + 0.4 * 0.2
= 0.6 * 0.8 + 0.4 * 0.2
= 0.48 + 0.08
= 0.56
Therefore, the probability that a 1 is received is 0.56.
b. If a 1 is received, we want to find the probability that a 0 was sent. We can use Bayes' theorem to calculate this.
Let's denote:
P(0 sent) = ?
P(1 received) = 0.56
We know that P(0 sent) + P(1 sent) = 1 (since either a 0 or a 1 is sent).
Using Bayes' theorem:
P(0 sent | 1 received) = (P(1 received | 0 sent) * P(0 sent)) / P(1 received)
P(1 received | 0 sent) = P(0 sent and flipped to 1) = 0.4 * 0.2 = 0.08
P(0 sent | 1 received) = (0.08 * P(0 sent)) / 0.56
Since P(0 sent) + P(1 sent) = 1, we can substitute 1 - P(0 sent) for P(1 sent):
P(0 sent | 1 received) = (0.08 * (1 - P(0 sent))) / 0.56
Simplifying:
P(0 sent | 1 received) = 0.08 * (1 - P(0 sent)) / 0.56
= 0.08 * (1 - P(0 sent)) * (1 / 0.56)
= 0.08 * (1 - P(0 sent)) * (25/14)
= (2/25) * (1 - P(0 sent))
Therefore, the probability that a 0 was sent given that a 1 is received is (2/25) * (1 - P(0 sent)).
A message is coded into the binary symbols 0 and 1 and the message is sent over a communication channel. The probability a 0 is sent is 0.4 and the probability a 1 is sent is 0.6. The channel, however, has a random error that changes a 1 to a 0 with probability 0.2 and changes a 0 to a 1 with probability 0.1. (a) What is the probability a 0 is received? (b) If a 1 is received, what is the probability a 0 was sent?
Ophelia is making homemade spaghetti sauce by combining 48 oz of tomato paste with 6 cups of water.how many ounces of tomatoes paste are needed for every cup of water show your work.
Answer:
8 ounces of tomato paste for each cup of water.
Step-by-step explanation:
Just divide 48 / 6 to get 8 oz of tomato paste per cup of water.
Hope this helps!
Work Shown:
48 oz of tomato paste = 6 cups of water
48/6 oz of tomato paste = 6/6 cups of water
8 oz of tomato paste = 1 cup of water
In short, we divide both values by 6 so that the "6 cups" becomes "1 cup". We can say the unit rate is 8 oz of tomato paste per cup of water.
3 A farmer's horses drink from a rectangular water tank with dimensions shown.
2 4/5 ft
2 2/5 * ft
2 1/2 * 1
5 3/5 * ft
4 4/5 ft
When the farmer refills the tank, it takes the horses 4 days to drink all the water. The farmer wants to build a new, larger tank and plans to increase each measurement of the tank by 25%.
Section 3
By what percentage will the amount of water the farmer can put in the tank increase when the larger tank is built?
Explain how you found your answers.
Enter your answers and your explanation in the space provided.
How many days will it take the horses to drink all the water in the larger tank?
The amount of water the farmer can put in the tank increase when the larger tank is built is 106.33%.It takes 4days for the horses to drink all the water in the larger tank.
What is percentage?Percentage is a way of expressing a proportion or a fraction out of 100. It represents the number of parts per hundred of a quantity.
What does dimension refers to?Dimension refers to a measurable aspect of an object or a system, such as length, width, height, depth, volume, area, or mass. In mathematics, dimension also refers to the number of coordinates required to specify a point in a space. For example, a two-dimensional shape like a square has two dimensions, length and width, while a three-dimensional object like a cube has three dimensions, length, width, and height.
To find the percentage increase in the amount of water the farmer can put in the larger tank, we need to calculate the volume of the original tank and the volume of the larger tank, and then compare the two.
The original tank has dimensions of 2 4/5 ft, 2 2/5 ft, and 2 1/2 ft. We can convert these mixed numbers to improper fractions for easier calculations:
2 4/5 ft = (2 x 5 + 4)/5 ft = 14/5 ft
2 2/5 ft = (2 x 5 + 2)/5 ft = 12/5 ft
2 1/2 ft = (2 x 2 + 1)/2 ft = 5/2 ft
The volume of the original tank is then:
Volume = Length x Width x Height = 14/5 ft x 12/5 ft x 5/2 ft
Now, the farmer plans to increase measurement by 25%. To do this, we multiply each measurement by 1.25.
The dimensions of the larger tank would be:
Length = 14/5 ft x 1.25 = 3.5 ft
Width = 12/5 ft x 1.25 = 3 ft
Height = 5/2 ft x 1.25 = 3.125 ft
The volume of the larger tank is then:
Volume = Length x Width x Height = 3.5 ft x 3 ft x 3.125 ft
To find the percentage increase, we can compare the two volumes:
Percentage increase = ((Volume of larger tank - Volume of original tank) / Volume of original tank) x 100
Plugging in the values we found:
Percentage increase = ((3.5 ft x 3 ft x 3.125 ft - 14/5 ft x 12/5 ft x 5/2 ft) / (14/5 ft x 12/5 ft x 5/2 ft)) x 100
After calculating the above expression, we find that the percentage increase is approximately 106.33%. So, the amount of water the farmer can put in the larger tank will increase by approximately 106.33% when the larger tank is built.
Now, to find how many days it will take the horses to drink all the water in the larger tank, we can assume that the rate at which the horses drink water remains constant. Since the volume of the larger tank is approximately 106.33% more than the original tank, it will take the horses approximately the same amount of time to drink all the water in the larger tank, which is 4 days.
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A store clerk collects data and finds that as the outside temperature, u, increases, the
average number of bathing suits sold, y, increases. Which is the best choice of a scatter
plot to represent the data collected?
.
Considering that a scatter plot is a linear function, the best choice is an increasing linear function.
What is a linear function?A linear function is modeled by:
\(y = mx + b\)
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0.A scatter-plot is the approximation of a linear function, in this problem with the input being the outside temperature and the output being the number of bathing suits. These measures are direct proportional, as they increase together, hence, the best choice for the scatter-plot is an increasing linear function.
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A botanist has developed a new hybrid cotton plant that can withstand insects better than other cotton plants. However, there is some concern about the germination of seeds from the new plant. To estimate the probability that a seed from the new plant will germinate, a random sample of 3000 seeds was planted in warm, moist soil. Of these seeds, 2470 germinated.
a. Use relative frequencies to estimate the probability that a seed will germinate. What is your estimate?
b. Use relative frequencies to estimate the probability that a seed will not germinate. What is your estimate?
c. Either a seed germinates or it does not. What is the sample space in this problem? Do the probabilities assigned to the sample space add up to 1? Should they add up to 1? Explain.
1. Yes, because they cover the entire sample space.
2. Yes, because they do not cover the entire sample space.
3. No, because they cover the entire sample space.
d. No, because they do not cover the entire sample space.
d. Are the outcomes in the sample space of part (c) equally likely?
Answer:
a. The estimate of the probability that a seed will germinate is:
82% (0.82)
b. The estimate of the probability that a seed will not germinate is:
18% (0.18)
c. The sample space is 2.
1. Yes, because they cover the entire sample space. The probabilities assigned to the sample space add up to 1 (0.82 +0.18).
They should always add up to one. Probability summed cannot exceed 1.
Step-by-step explanation:
a) Data and Calculations:
Sample = 3,000 seeds
Germinated seeds = 2,470
Non-germinated seeds = 530 (3,000 - 2,470)
Probability of a seed germinating = 2,470/3,000 = 82% approx.
Therefore, the probability of a seed not germinating = 18% (100 - 82) or (530/3,000)
please help i don’t feel like typing
Answer: q=13
Step-by-step explanation:
add the separate the q, add 4 to the 9= 13
13=q
A hubcap has a radius of 11 centimeters. What is the area of the hubcap? Round your answer to the nearest hundredth. Use 3.14 for π.
Answer:
379.94 cm 2
Step-by-step explanation:
If the circumference of a circle measures 3/2TT cm, what is the area of the circle in terms of TT?
A. 3/4 tt cm2
B. 9/2 tt cm2
C. 9/4 tt cm2
D. 9/16 tt cm2
Answer:
A = pi 9/16 cm^2
Step-by-step explanation:
The circumference is 3/2 pi
The circumference is given by
C = 2 * pi *r
3/2 pi = 2 * pi *r
Divide each side by 2 *pi
3/2 pi / 2 pi = 2 pi r /2pi
3/4 cm = r
Now we can find the area
A = pi r^2
A = pi ( 3/4) ^2
A = pi 9/16 cm^2
Answer:
d) 9/16π cm²
Step-by-step explanation:
Circumference = 3/2π cm
diameter = 3/2 cm
radius = 3/2 ÷ 2 = 3/4 cm
area = π(3/4)² = 9/16 π cm²
Use the equation 20x+12y= 24 as an equation in three different linear systems. Write a second equation so that each system has a different number of solutions. Explain what you did for each system.
We have created three different linear systems using the equation 20x + 12y = 24.
System 1 has infinitely many solutions, System 2 has no solution, and System 3 has a unique solution.
Let's create three different linear systems using the equation 20x + 12y = 24 and ensure that each system has a different number of solutions.
System 1:
Equation 1: 20x + 12y = 24 (given)
Equation 2: 40x + 24y = 48
Explanation: In this system, we multiplied both sides of the given equation by 2 to create Equation 2.
By doing so, we have essentially created two equations that are multiples of each other.
Since the equations are equivalent, they represent the same line, and the system has infinitely many solutions.
Any values of x and y that satisfy the first equation will automatically satisfy the second equation as well.
System 2:
Equation 1: 20x + 12y = 24 (given)
Equation 2: 20x + 12y = 48
Explanation: In this system, we changed the constant term in Equation 2 to 48.
By doing so, we have created two parallel lines with the same slope. Since the lines are parallel, they will never intersect, and the system has no solution.
There are no values of x and y that satisfy both equations simultaneously.
System 3:
Equation 1: 20x + 12y = 24 (given)
Equation 2: 40x + 24y = 48
Explanation: In this system, we multiplied both sides of Equation 2 by 2 to create Equation 2.
By doing so, we have created two equations that have the same slope but different y-intercepts.
Since the lines are not parallel and have different y-intercepts, they will intersect at a single point, and the system has a unique solution.
There will be one specific pair of values for x and y that satisfy both equations simultaneously.
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Please help!!!!!!!!!!!!
The calculated values of the sum of interior angles of the shapes are 1080 degrees and 360 degrees
Calculating the sum of interior angles of the shapesThe formula of the sum of interior angles of a polygon is
Sum = (n − 2) * 180
For the octagon, we have
n = 8
This means that
Sum of angles = (8 − 2) * 180
Evaluate
Sum of angles = 1080
For the square, we have
n = 4
This means that
Sum of angles = (4 − 2) * 180
Evaluate
Sum of angles = 360
Hence, the sum of interior angles of the shapes are 1080 degrees and 360 degrees
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what is the answer to the equation 1 1/2 x 3/4 + 1/78 = 9/8 x 5/8
11/2*3/4+1/78=9/8*5/8
5.5*3/4+1/78=9/8*5/8
16.5/4+1/78=9/8*5/8
4.125+1/78=9/8*5/8
4.125+0.013=9/8*5/8
4.125+0.013=1.125*5/8
4.125+0.013=5.625/8
4.125+0.013=0.703
4.138=0.703
the answer is 4.138=0.703
hope this helps
During a 7-year period, the amounts (in millions of dollars) spent each year on buying new vehicles N and used vehicles U by United States residents are modeled by the equations
N=−0.028t3+0.06t2+0.1t+17
U=−0.38t2+1.5t+42
where t=1 represents the first year in the 7-year period.
a. Write a polynomial that represents the total amount spent each year on buying new and used vehicles in the 7-year period.
b. How much is spent on buying new and used vehicles in the fifth year?
$ ???
Using addition of polynomials, it is found that:
a) The total amount is: T(t) = -0.028t³ - 0.32t² + 1.6t + 59.
b) $55.5 million was spent on buying new and used vehicles in the fifth year.
How do we add polynomials?To add polynomials, we have to combine the like terms, that is, the terms that have t elevated to the same power.
For this problem, the functions are given as follows:
N(t) = -0.028t³ + 0.06t² + 0.1t + 17.U(t) = -0.38t² + 1.5t + 42.Hence the total amount is:
T(t) = N(t) + U(t)
T(t) = -0.028t³ + 0.06t² + 0.1t + 17 - 0.38t² + 1.5t + 42.
T(t) = -0.028t³ + (0.06 - 0.38)t² + (0.1 + 1.5)t + 17 + 42.
T(t) = -0.028t³ - 0.32t² + 1.6t + 59.
For the 5th year, the amount is given by:
T(5) = -0.028(5)³ - 0.32(5)² + 1.6(5) + 59 = 55.5.
$55.5 million was spent on buying new and used vehicles in the fifth year.
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Mitchell plans to use ASA to prove that two triangles made from a rectangular piece of wood are the same. Which diagram would support his plan to use ASA?
The solution is given below.
What is triangle?A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted \triangle ABC. In Euclidean geometry, any three points, when non-collinear, determine a unique triangle and simultaneously, a unique plane.
here, we have,
Remember that the Angle-Side-Angle Postulate (ASA) states that if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent.
According to this, the correct answer is: given below.
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A collection of 77 quarters and dimes is worth $12.50. How many quarters are in the collection? PLS HELP ILL GIVE YOU BRAINLEST ANSWER
Answer:
32
Step-by-step explanation:
77 quarters and dimes
q + d = 77
subtract q from both sides
d = 77 - q
---------------------------
A collection of quarters and dimes is worth $12.50 (1250 cents)
25q + 10d = 1250
substitute for d
25q + 10(77 - q) = 1250
distribute
25q + 770 - 10q = 1250
Combine like terms
15q + 770 = 1250
subtract 770 from both sides
15q = 480
divide both sides by 15
q = 32
Solve for X please hurry
Answer: 23.1
Step-by-step explanation:
\(\frac{x}{14}=\frac{33}{20}\\\\x=\frac{(33)(14)}{20}\\\\x=23.1\)
write down the value of the 6 in the number 2693
Answer:
6 hundred
Step-by-step explanation:
the value of 6 in 2693 is 6 hundred as :-
TH. H. T. O
2. 6. 9. 3
6 comes under the hundred's value
plzzz mark me as brainliest
Answer:
6 hundred
Step-by-step explanation:
tama po yan im suree lab yow
Help pls
5/2x-7=3/4x+14
\(\frac{5}{2}x-7=\frac{3}{4}x+14\)
\(\frac{5x}{2}-7=\frac{3}{4}x+14\\\\\frac{5x}{2}-7=\frac{3x}{4}+14\)
10x−28=3x+56
10x=3x+56+28
10x=3x+84
10x−3x=84
7x=84
\(x=\frac{84}{7}\)
x=12
Hope this helps, have a blessed and wonderful day!
If she raised her price to $13.00 per hour. How much will she earn now if she works for 5 1/2 hours?
Answer:
$71.50
Step-by-step explanation:
13hper hour and 5 hours is $65
and half an hour would be $6.50
and adding those together js $71.50
What is 78,400,000 expressed in scientific notation?A.78.4 x 10*5B.7.84 x 10*7C.78.4 x 10*6D.784 x 10*4
Solution:
Given:
\(78,400,000\)
Scientific notation is a way of writing very large or very small numbers.
A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10.
Hence, we move the decimal points such that the number is between 1 and 10 and then multiply it by a power of 10.
Thus,
Hence, the decimal point was moved 7 times to make the number fall between 1 and 10.
The number becomes 7.84 and the power of 10 to which is multiplied is 10 to power 7 because the decimal was moved 7 times.
Hence,
\(78,400,000=7.84\times10^7\)Therefore, option B is correct.
Solve for y.
5/8=y+3/9
Convert into fractions with equivalent denominators.
\(\frac{5}{8}=\frac{45}{72}\)
\(\frac{3}{9}=\frac{24}{72}\)
\(y+\frac{24}{72}=\frac{45}{72}\)
\(y=\frac{21}{72}\)
\(y=\frac{7}{24}\)
Hope this helps.
頑張って!
f(x) = -2x^2+3x-6
how does the function open
20. There is a number x sum that x2 is irrational but x is rational. Then x can be
(a) √5102.0 (£)
(b) √2
(c) 3/2
(d) 4/5
The correct answer is 3/2. In this case, x = 3/2, and its square, (3/2)^2 = 9/4, is rational. x satisfies the given condition.option (c)
To explain further, we need to understand the properties of rational and irrational numbers.
A rational number can be expressed as a fraction of two integers, while an irrational number cannot be expressed as a fraction and has non-repeating, non-terminating decimal representations.
In the given options, (a) √5102.0 (£) and (b) √2 are both irrational numbers.
Their squares, (√5102.0)^2 and (√2)^2, would also be irrational, violating the given condition. On the other hand, (d) 4/5 is rational, and its square, (4/5)^2 = 16/25, is also rational.
Option (c) 3/2 is rational since it can be expressed as a fraction. Its square, (3/2)^2 = 9/4, is rational as well.
Therefore, (c) 3/2 is the only option where x is rational, but its square is irrational, satisfying the condition mentioned in the question.
In summary, the number x that satisfies the given condition, where x^2 is irrational but x is rational, is (c) 3/2.option (c)
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add the fractions and simplify the answer:2 1/4+5 5/6+3 2/3
maya needs 54 cubic feet of soil for her garden. she already has 4.5 cubic feet of soil. Each bag contains 1.5 cubic feet of soil. How many bags of soil should maya purchase?
Answer:
33 bags
Step-by-step explanation:
she has 4.5 ft³
she needs 54 ft³
she must get an additional
54 ft³ - 4.5 ft³ = 49.5 ft³
each bag has 1.5 ft³
(49.5 ft³)/(1.5 ft³) = 33
Answer: 33 bags
Suppose that it snows in Greenland an average of once every 23 days, and when it does, glaciers have a 28% chance of growing. When it does not snow in Greenland, glaciers have only a 5% chance of growing. What is the probability that it is snowing in Greenland when glaciers are growing
The likelihood that it will snow in Greenland while the glaciers are advancing is 0.7158.
What is Probability?Probability is calculated as the proportion of favorable events to all potential scenarios of an event. The proportion of positive results, or x, for an experiment with 'n' outcomes can be expressed.
By applying conditional probability's Bayes Theorem, we are able to answer this query.
P(A|B) = [P(B|A) × P(A)] / {(P(B|A) × P(A))+ (P(B|A') × P(A'))} (i)
Imagine if Greenland receives snowfall once every 27 days.
Probability = P(A) = 1/23
P(A) = 0.043
The probability when it not snows = P(A)' = 1 - 0.043
P(A)' = 0.956
The probability when it will snow and glacier grows = P(B|A) = 28%
P(B|A) = 0.28
The probability when it doesn't snow and glacier grows = P(B|A)' = 5%
P(B|A)' = 0.05
Substitute the values obtained in equation (i)
(0.28 × 0.043) / [(0.28 × 0.043) + (0.05 × 0.956)]
= 0.01204 / 0.01682
= 0.7158
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NO LINKS!!! This problem only
Identify the segment bisector of XY. Then find XY.
Segment Bisector:
XY:
Answer:
Segment Bisector: PQXY: 26 units-------------------------------
As per given drawing PQ is the segment bisector of XY.
The point W is the midpoint of XY. As per property of midpoint, XW and WY have equal length.
XW = 13 units, hence:
XY = 2*XW = 2*13 = 26 unitsmath mat mhaha ha hbahuh gyahy w guabhbhabhabhnahqnhuabuha vha ya yva cyvvahba cya yva buabbyga hay avu aygabyga ygabgyagyabhyabga ahh abbahhajna buiajaj
qhubuag qjjbbaqbjbqhuqguqbqbqyqbyqbyqb math help
Place the digits 1,2,3,6,7 and 8 in the boxes below to obtain
a) the greatest possible term
b) the smallest possible sum.
explain your answer!
What is the data correlation in the scatter plot below?
No correlation
Positive
Negative
The data correlation in the scatter plot above include the following: B. positive.
What is a positive correlation?In Mathematics, a positive correlation is used to described a scenario in which two variables move in the same direction and are in tandem.
This ultimately implies that, a positive correlation exist when two variables have a linear relationship or are in direct proportion. Therefore, when one variable increases, the other variable generally increases, as well.
By critically observing the scatter plot shown in the image attached above, we can reasonably infer and logically deduce that there is a positive correlation between the x-values and y-values because they both increase simultaneously.
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