Answer:
At the end of ten days, the size of population B is 256 times that of population A
Step-by-step explanation:
We work under the premise that population A and B start both with the same number of individuals. Let's call such initial population \(N_0\)
Now, we write the exponential expression that describes population A as a function of days (t) for the first 6 days:
\(N_A=N_0\,(2)^t\)
which represents the starting point with \(N_0\) individuals on day zero, doubling after one day (t= 1), and keeping on doubling the following days for 6 days.
So at the end of 6 days, population A would have the following number of individuals:
\(N_A=N_0\,(2)^6\\N_A=N_0\,(64)\\N_A=64\,N_0\)
That is 64 times the starting number of individuals.
After this, the population stops growing and starts reducing to one-half each day. This behavior can be represented by:
\(N_A=64\,N_0\,(\frac{1}{2} )^t\)
therefore after 4 days in this pattern, this culture has the following number of organisms:
\(N_A=64\,N_0\,(\frac{1}{2} )^4\\N_A=64\,N_0\,(\frac{1}{16} )\\N_A=4\,N_0\)
which is now just four times what the culture started with.
Now, on the other hand, population B grows doubling each day without interruption, so at the end of 10 days its size is given by:
\(N_B=N_0\,(2)^t\\N_B=N_0\,(2)^10\\N_B=N_0\1024\\N_B=1024\,N_0\)
that is it has 1024 times the initial number of organisms.
So if we compare both populations at day 10:
\(\frac{N_B}{N_A} =\frac{1024\/N_0}{4\,N_0} =256\)
Therefore, at the end of ten days, population B is 256 times the size of population A
Answer:
After 10 days, population B has grown to be 256 times the size of population A.
Step-by-step explanation:
Which table shows the reflection of f(x) across the y-axis?
answer 4 brainliest
The Correct graph is fourth one !
Answer:
The last one is correctStep-by-step explanation:
Comparison with the gradientQUESTION :
m = (-3--1)/(-5-6) = 2/11
LAST ONE :
m = (-3--1)/(5--6) = -2/11
WITH THE REFLECTION OF F(X) , NORMALLY THE X-INTERCEPTS OF THE REFLECTED VALUE REMAIN THE SAME BUT CHANGE SIGNS. THE Y-INTERCEPTS DON'T CHANGE INCLUDINGVTHE SIGNS.
HOPEFULLY THIS MAKES SENSE :)Rita just got a babysitting job. She will work about 10 hours each week and make $9 an hour. Her parents say she needs to save half, but she can spend the other half. Rita estimates she'll have around $50 of spending money each week. Is that a good estimate?
Rita's estimate of $50 is a good estimate, but it's not precise. If she works 10 hours a week and makes $9 an hour, her total will be $90. Half of 90 is 45. This means her spending money each week is $45.
What are these expressions like in words and numbers please answer if you know simple
Succotash is made by combining corn with lima beans and costs $1.00 per pound.
If lima beans cost $1.10 per pound and corn costs $.60 per pound, how many pounds of each should be used to make 5 lb of succotash?
Answer:
1 lb corn and 4 lb lima beans
Step-by-step explanation:
Let x = weight of corn.
Let y = weight of lima beans.
x + y = 5
0.6x + 1.1y = 5
x = 5 - y
0.6(5 - y) + 1.1y = 5
3 - 0.6y + 1.1y = 5
0.5y = 2
y = 4
x + y = 5
x + 4 = 5
x = 1
Answer: 1 lb corn and 4 lb lima beans
For the fomula V = Ah, find A if:
V = 84, h = 7
Answer:
A = 12
Step-by-step explanation:
V = Ah ( substitute given values into the formula )
84 = 7A ( divide both sides by 7 )
12 = A
During the lecture we considered an example with three video cameras. The truth table for the example is given below. Generate Boolean Function using Product of Sum (Conjunctive Normal Form).
x1 x2 x3 f(x1,x2,x3)
0 0 0 1
0 0 1 1
0 1 0 1
1 0 0 1
0 1 1 0
1 0 1 0
1 1 0 0
1 1 1 0
The Boolean function f(x1, x2, x3) in the Product of Sum (Conjunctive Normal Form) is: f(x1, x2, x3) = (x1'x2'x3') + (x1'x2'x3) + (x1'x2x3') + (x1x2'x3')
The given truth table represents the Boolean function f(x1, x2, x3) that outputs 1 for certain combinations of inputs (x1, x2, x3) and 0 for other combinations.
We need to generate the Boolean function using the Product of Sum (Conjunctive Normal Form) approach.
The Product of Sum (POS) form consists of taking the product of the minterms that result in a 1 output and combining them with a logical OR operation. Each minterm represents a conjunction (AND) of the input variables.
Let's generate the Boolean function using the following steps:
1. Identify the minterms that result in a 1 output: From the truth table, we can see that the minterms that output 1 are (x1, x2, x3) = (0, 0, 0), (0, 0, 1), (0, 1, 0), and (1, 0, 0).
2. Express each minterm as a conjunction of the input variables:
(x1, x2, x3) = (0, 0, 0) can be expressed as x1'x2'x3'
(x1, x2, x3) = (0, 0, 1) can be expressed as x1'x2'x3
(x1, x2, x3) = (0, 1, 0) can be expressed as x1'x2x3'
(x1, x2, x3) = (1, 0, 0) can be expressed as x1x2'x3'
3. Combine the minterms using the logical OR operation:
f(x1, x2, x3) = (x1'x2'x3') + (x1'x2'x3) + (x1'x2x3') + (x1x2'x3')
Therefore, the Boolean function f(x1, x2, x3) in the Product of Sum (Conjunctive Normal Form) is:
f(x1, x2, x3) = (x1'x2'x3') + (x1'x2'x3) + (x1'x2x3') + (x1x2'x3')
In this form, the function is represented as a combination of AND and OR operations, where each term (minterm) represents a conjunction of the input variables. The OR operation combines these terms to form the complete Boolean function.
It's important to note that the POS form is just one way to represent the Boolean function, and depending on the specific problem or context, other forms such as the Sum of Products (SOP) form or other logical expressions may be more appropriate or useful.
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Help please
10(5-n)-1=29
Hey there!
10(5 - n) - 1 = 29
10(5) + 10(-n) - 1 = 29
50 - 10n - 1 = 29
49 - 10n = 29
-10n + 49 = 29
ADD 49 to BOTH SIDES
-10n + 49 - 49 = 29 - 49
WORK IT OUT or SIMPLIFY IT!
NEW EQUATION: -10n = -20
DIVIDE -10 to BOTH SIDES
-10n/-10 = -20/-10
WORK IT OUT or SIMPLIFY IT AS WELL!
n = 2
Therefore, your answer is: n = 2
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Answer:
n=2
Step-by-step explanation:
Step #1. Distribute the 10 to (5-n) which is 50-10n
Step #2. Simplify. 50-10n-1= -10n+50-1= -10n+49=29
Step #3. Subtract. -10n+49-49=29-49
Step #4. Simplify again. -10n = -20
Step #5. Divide. -10n/-10= -20/-10
Step #6. Simplify again. n=2
There you have it! N is equal to 2! please mark be as brainliest if you can.
Hope this helps!
When someone throws a ball, the action force is the person pushing on the ball. What is the reaction force?
Give a real answer and explain.
Answer:
Should be : The Ball Pushing On The Person
Step-by-step explanation:
while the Air resistance answers have a point this question is asking about the reaction and the only reaction answer is the ball pushing on the person. every action has a reaction,
The ball wants to stay still so it pushes back on the person with all it's force, but the person pushes the ball with more force then the ball has so the ball rolls.
(may have explained it to much or weirdly sorry)
A cylinder has a base diameter of 20 feet and a height of 8 feet what is the cubic volume
im on the seacond part 2 more to go lol
Answer:
p = 4
Step-by-step explanation:
3p + 8 = 20
3p = 20 - 8
3p = 12
p = 12/3
p = 4
Answer:
see below
Step-by-step explanation:
2p + 8 = 20 - p
add p to both sides
2p + p + 8 = 20 - p + p
combine like terms
3p + 8 = 20
subtract 8 from both sides
3p + 8 - 8 = 20 - 8
combine like terms
3p = 12
divide both sides by 3
3p / 3 = p
12/3 = 4
we're left with p = 4
a certain data set has a standard deviation of 20 and a mean of 150. one of the values in the data set is 120, what is the z-score for this data point?
Answer:
The z-score for this data point is -1.5
Step-by-step explanation:
Mean = M = 150
Standard Deviation = S = 20
Value = x = 120
We find the z value,
\(z = (x-M)/S\\z = (120 - 150)/20\\z = (-30)/20\\z=-3/2\\z=-1.5\)
Hence the z value is z = -1.5
Mason invests money in an account paying simple interest. He invests $70 and no money is added or removed from the investment. After one year, he has $73.50. What is the simple percent interest per year?
answer: 5%
explanation: subtract the principal from the total amount, then divide the difference by the principal
>> 73.50 - 70 = 3.50
3.50 / 70 = 0.05
0.05 x 100 = 5%
What is the range of the function shown in the graph?
Answer:
D. -∞ < y < 5
Step-by-step explanation:
The range are all the possible values for y that the function can take. In the graph we can see that the highest value for y is 5 and there isn't a lowest value for y. It means that the range are values between -∞ and 5.
So the range is:
-∞ < y < 5
Consider the following geometric sequence 2,6,18,54
Answer:
Multiply the number by 3 to get the next number.
Step-by-step explanation:
On December 17, 2007 baseball writer John Hickey wrote an article for the Seattle P-I External link about increases to ticket prices for Seattle Mariners games during the 2008 season. The article included a data set that listed the average ticket price for each MLB team, the league in which the team plays (AL or NL), the number of wins during the 2007 season and the cost per win (in dollars). The data for the 16 National League teams are shown below. team league price wins cost/win
Order goes
Team/ League/ Price/ Wins/ cost per win
Arizona Diamondbacks /NL /19.68/ 90 /35.40
Atlanta Braves NL 17.07 /84/ 32.89
Chicago Cubs NL 34.30 /85/ 65.33
Cincinnati Reds NL 17.90 /72 /40.32
Colorado Rockies NL 14.72 /90 /26.67
Florida Marlins NL 16.70 /71 /38.13
Houston Astros NL 26.66 /73 /59.11
Los Angeles Dodgers NL 20.09 /82 /34.64
Milwaukee Brewers NL 18.11 /83 /35.37
N.Y. Mets NL 25.28 /88 /46.56
Philadelphia Phillies NL 26.73 /89 /48.69
Pittsburgh Pirates NL 17.08 /68 /40.67
San Diego Padres NL 20.83 /89 /38.15
San Francisco Giants NL 24.53 /71/ 56.00
St. Louis Cardinals NL 29.78 /78 /61.91
Washington Nationals NL 20.88 /73 /46.30
Compute the correlation between average 2007 price and number of 2007 wins for these 16 teams. (Assume the correlation conditions have been satisfied and round your answer to the nearest 0.001.)
The correlation between average 2007 price and number of 2007 is 0.207
To compute the correlation between the average 2007 price and the number of 2007 wins for the 16 National League baseball teams, we can use the formula for Pearson's correlation coefficient.
First, we need to calculate the following sums:
Sum of prices (ΣX) = 19.68 + 17.07 + 34.30 + 17.90 + 14.72 + 16.70 + 26.66 + 20.09 + 18.11 + 25.28 + 26.73 + 17.08 + 20.83 + 24.53 + 29.78 + 20.88 = 387.47
Sum of wins (ΣY) = 90 + 84 + 85 + 72 + 90 + 71 + 73 + 82 + 83 + 88 + 89 + 68 + 89 + 71 + 78 + 73 = 1296
Sum of products of prices and wins (ΣXY) = (19.68 * 90) + (17.07 * 84) + (34.30 * 85) + (17.90 * 72) + (14.72 * 90) + (16.70 * 71) + (26.66 * 73) + (20.09 * 82) + (18.11 * 83) + (25.28 * 88) + (26.73 * 89) + (17.08 * 68) + (20.83 * 89) + (24.53 * 71) + (29.78 * 78) + (20.88 * 73) = 24839.87
Sum of squared prices (ΣX^2) = (19.68)^2 + (17.07)^2 + (34.30)^2 + (17.90)^2 + (14.72)^2 + (16.70)^2 + (26.66)^2 + (20.09)^2 + (18.11)^2 + (25.28)^2 + (26.73)^2 + (17.08)^2 + (20.83)^2 + (24.53)^2 + (29.78)^2 + (20.88)^2 = 19151.7899
Sum of squared wins (ΣY^2) = (90)^2 + (84)^2 + (85)^2 + (72)^2 + (90)^2 + (71)^2 + (73)^2 + (82)^2 + (83)^2 + (88)^2 + (89)^2 + (68)^2 + (89)^2 + (71)^2 + (78)^2 + (73)^2 = 94518
Using these sums, we can calculate the correlation coefficient (r):
r = (n * ΣXY - ΣX * ΣY) / sqrt((n * ΣX^2 - (ΣX)^2) * (n * ΣY^2 - (ΣY)^2))
where n is the number of data points, which in this case is 16.
Substituting the values:
r = (16 * 24839.87 - 387.47 * 1296) / sqrt((16 * 19151.7899 - (387.47)^2) * (16 * 94518 - (1296)^2))
Calculating this expression gives us:
r ≈ 0.207
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Find the value of n.
n+27
11n
The value of n is ? units.
Answer:2.7=n
Step-by-step explanation:
n+27=11n
Move the variable to one side so subtract n
27=10n
Divide by 10
2.7=n
I'm not sure if this what you were asking for
sean uses a candle mold to make candles that are perfect cones. the diameter of the cone is 6 inches with a height that is half as long as the diameter. how much wax is needed to make a candle?
28.26 inches of wax is needed to make a candle.
What is the volume of a cylinder?
The density of a cylinder is determined by its volume, which represents how much material may be immersed in it or carried inside of it. The formula πr2h where r is the radius of the circular base and h is the height of the cylinder determines the volume of a cylinder.
Here, we have
Given: Sean uses a candle mold to make candles that are perfect cones. the diameter of the cone is 6 inches with a height that is half as long as the diameter.
The volume of cylinder = π · r² · h
r = 3 inches
h = 3 inches
= π (3)² · 3
= 27π
Volume of sphere = 4/3πr³
= 4/3π(3)³
= 36π
Total volume = 36π - 27π
= 9π = 9×3.14 = 28.26
Hence, 28.26 inches of wax is needed to make a candle.
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What are the steps to solve this
Malena's steps arranged sequentially are :
collecting like terms Using the appropriate numerical operator divide both sides by 3The first step :
2x + 5 = -10 - x
collecting like terms
2x + x = -10 - 5
step 2 : Using the appropriate numerical operator:
3x = -15
step 3 : divide both sides by 3 to isolate x
x = -5
Hence, the required steps as arranged above .
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find the maclaurin series of f (by any method). f(x) = cos(x4) f(x) = [infinity] n = 0
The Maclaurin series expansion of f(x) = cos(x⁴) is f(x) = 1 - (x⁸)/2! + (x¹⁶)/4! - (x²⁴)/6! + ... . This expansion provides an approximation of the original function in the form of an infinite sum of powers of x.
The Maclaurin series expansion of f(x) = cos(x⁴) can be found by substituting the series expansion of cosine function into the given function. The series expansion of cosine function is cos(x) = 1 - (x²)/2! + (x⁴)/4! - (x⁶)/6! + ... .
To find the Maclaurin series of f(x) = cos(x⁴), we substitute x^4 in place of x in the cosine series expansion. Thus, f(x) = cos(x⁴) = 1 - [(x⁴)²]/2! + [(x⁴)⁴]/4! - [(x⁴)⁶]/6! + ... .
Simplifying further, we get f(x) = 1 - (x⁸)/2! + (x¹⁶)/4! - (x²⁴)/6! + ... .
In summary, the Maclaurin series expansion of f(x) = cos(x⁴) is f(x) = 1 - (x⁸)/2! + (x¹⁶)/4! - (x²⁴)/6! + ... .
This expansion provides an approximation of the original function in the form of an infinite sum of powers of x. The more terms we include in the series, the more accurate the approximation becomes within a certain range of x values.
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CAN ANYBODY HELP? ASAP
Answer:
Step-by-step explanation:
just try
HELP!!! this is due today and i’m super dumb :( pls help me the help will be very much appreciated.
Answer:
Side length: 28
Area: 784
Step-by-step explanation:
Pythagorean
Hope This helps
Answer:
Side lengths of the square are 10 units. The area of the square is 100 units squared
Step-by-step explanation:
Use the Pythagorean theorem to find the hypotenuse of the right triangles. The lengths of the hypotenuses is the same as the side lengths of the square. Since it's a square all the sides are congruent(same length) To find the area of the square multiply the base times the height(10x10) because it's a square the area is squared. Therefore, the area is 100 units squared.
Solve- 3(2d-1)-2d=4(d-2+5
The equation 3(2d-1) - 2d = 4(d-2+5) Isolate the variable 'd' on one side of the equation ,has no solution.
The equation 3(2d-1) - 2d = 4(d-2+5), we will simplify and
Step 1: Distribute the multiplication on the left side:
6d - 3 - 2d = 4(d - 2 + 5)
Simplifying, we have:
4d - 3 = 4(d + 3)
Step 2: Distribute the multiplication on the right side:
4d - 3 = 4d + 12
Step 3: Move the variables to one side and the constants to the other side:
4d - 4d = 12 + 3
Simplifying, we have:
0 = 15
Step 4: Conclusion:
We have obtained the equation 0 = 15, which is not a true statement. This means that there is no solution to the equation. The original equation is inconsistent and does not have a valid value for 'd' that satisfies the equation
Therefore, the equation 3(2d-1) - 2d = 4(d-2+5) has no solution.
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Tessa invests $5400
$
5400
in a new savings account which earns 5.2%
5.2
%
annual interest, compounded monthly. What will be the value of her investment after 8
8
years? Round to the nearest cent.
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Refer to the data set of 20 randomly selected presidents given below. Treat the data as a sample and find the proportion of presidents who were taller than their opponents. Use that result to construct a 95% confidence interval estimate of the population percentage. Based on the result, does it appear that greater height is an advantage for presidential candidates? Why or why not?
Complete Question
The data for this question is shown on the first uploaded image
Answer:
The 95% confidence interval estimate of the population percentage is
\( 33.2\% < p < 76.8 \% \)
Step-by-step explanation:
On the data the first value is the height of the president while the other value is the height of his opponent
The sample size is n = 20
Looking at the data we see that out of the 20 presidents that only 11 is taller than their opponent
So the proportion of presidents that are taller than their opponents is
\(\^ p = \frac{11}{20}\)
=> \(\^ p = 0.55\)
From the question we are told the confidence level is 95% , hence the level of significance is
\(\alpha = (100 - 95 ) \%\)
=> \(\alpha = 0.05\)
Generally from the normal distribution table the critical value of is
\(Z_{\frac{\alpha }{2} } = 1.96\)
Generally the margin of error is mathematically represented as
\(E = Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p) }{n}} \)
\(E = 1.96 * \sqrt{\frac{0.55 (1- 0.55) }{20}} \)
\(E = 0.218\)
Generally 95% confidence interval is mathematically represented as
\(\r p -E < p < \r p +E\)
=> \(0.55-0.218 < p < 0.55+ 0.218 \)
=> \(0.332 < p < 0.768 \)
Converting to percentage
\((0.332*100)\% < p < (0.768 *100) \% \)
=> \( 33.2\% < p < 76.8 \% \)
"Determine whether the Mean Value Theorem can be applied to f on the closed interval [a,b]. (Select all that apply.) f(x)= x / x−10, [1,9] - Yes, the Mean Value Theorem can be applied. - No, f is not continuous on [a,b]. - No, f is not differentiable on (a,b). - None of the above."
"Yes, the Mean Value Theorem can be applied."
The Mean Value Theorem states that if a function is continuous on the closed interval [a,b] and differentiable on the open interval (a,b), then there exists a point c in the interval (a,b) such that the derivative at c is equal to the average rate of change of the function over [a,b].
Given the function f(x) = x / (x - 10) on the interval [1,9], let's examine its continuity and differentiability.
The function has a discontinuity at x = 10 because the denominator becomes zero. However, this point is not within the given interval [1,9]. Thus, the function is continuous on the interval [1,9].
Now, let's check for Mean Value Theorem . We can find the derivative of the function: f'(x) = (x - 10 - x) / (x - 10)^2 = -10 / (x - 10)^2. The derivative exists for all points except x = 10. Since this point is not in the interval (1,9), the function is differentiable on (a,b).
Therefore, the Mean Value Theorem can be applied to f(x) = x / (x - 10) on the closed interval [1,9]. So the answer is: "Yes, the Mean Value Theorem can be applied."
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The blood pressure in millimeters was measured for a large sample of people. The average pressure is 140 mm, and the SD of the measurements is 20 mm. The histogram looks reasonably like a normal curve. Use the normal curve to estimate the following percentages. Choose the answer that is closest to being correct.
a. 10.6%
b. 89.4%
c. 39.4%
d. 78.8%
e. 68.27%
Using the normal curve to estimate the following percentages. The answer that is closes to being correct is 39.4%. So, the correct answer is C.
Since the distribution is approximately normal, we can use the empirical rule (also known as the 68-95-99.7 rule) to estimate the percentages.
a. 10.6%: This corresponds to the area under the curve that is more than 2 standard deviations below the mean. Using the rule, we know that about 2.5% of the area under the curve is more than 2 standard deviations below the mean. So 10.6% is too high. The answer is not a.
b. 89.4%: This corresponds to the area under the curve that is less than one standard deviation above the mean. Using the rule, we know that about 68% of the area under the curve is within one standard deviation of the mean. So 89.4% is too high. The answer is not b.
c. 39.4%: This corresponds to the area under the curve that is within one standard deviation of the mean. Using the rule, we know that about 68% of the area under the curve is within one standard deviation of the mean. So 39.4% is the closest to being correct. The answer is c.
d. 78.8%: This corresponds to the area under the curve that is less than two standard deviations above the mean. Using the rule, we know that about 95% of the area under the curve is within two standard deviations of the mean. So 78.8% is too high. The answer is not d.
e. 68.27%: This corresponds to the area under the curve that is within one standard deviation of the mean. This is the same as c. So e is not the correct answer.
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Lines/and n intersect, as shown below.
45
The measure of angle X is 135
The measure of angle Y is
Answer:
.................. ........
The value of a home increases by 7%each year. Explain why the value of the home doubles approximately once each decade
The value of a home increases by 7%each year, by compounding the value of the home doubles approximately once each decade.
What is compounding?Compounding is a process where the interest is credited to the initial amount and interest, on the whole, is charged again. and this continues for t period of time.
It is given by the formula,
A=P(1+r)^t
where A is the value after t period of time,
P is the value of the asset at the beginning, and,
r is the rate of interest.
The value of the home doubles once each decade.
Given to us
The value of a home increases by 7% each year.
As it is given that the value of a home increases by 7% each year, therefore, the value of the home is compounding every year.
We know the formula of compounding,
A=P(1+r)^t
Why does the value doubles?
Now, let's assume a house whose value is 'P' today, therefore, substitute the value of the house in the formula of compounding,
A=P(1+r)^t
Substitute the rate at which the value is increasing,
A=P(1+0.07)^t
We know that in a decade there are 10 years,
A=P(1+0.07)^10=P(1.07)^10
=1.967P
Approximately
=2P
As we can see that the value of the home is almost 2 times the 'P' therefore, twice the value of the home at the beginning.
Hence, the value of the home doubles once each decade.
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A rectangle ha a perimeter of 42 centimeter. What are whole number dimenion of the rectangle with thi perimeter that would have the mallet area?
The perimeter of a rectangle is the total distance covered by its boundaries or the sides. Since there are four sides of a rectangle, thus, the perimeter of the rectangle will be the sum of all four sides. Since the perimeter is a linear measure, therefore, the unit of the perimeter of rectangle will be in meters, centimeters, inches, feet, etc.
Perimeter of rectangle = 42 cm.
2 × (l + b) = 42
l + b = 21
So l + b = 2 + 19 ; 3+ 18; 4+17; 5+16; 6+ 15 ; 7+14 ; 8+13 ; 9+12; 10 +11:
Area for l × b = 2× 19= 38 sq.cm
Area for second case = 3* 18=54sq.cm
Area for third case = 4* 17=68sq.cm
Area for fourth case = 5* 16=80sq.cm
Area for fifth case = 6* 15=90sq.cm
Area for sixth case =7* 14=98sq.cm
Area for seventh case =8* 13=104sq.cm
Area for eighth case =9* 12=108sq.cm
Area for ninth case =10* 11=110sq.cm
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What is the missing exponent?