Yes ,induction can be used to prove the following is true for every nonnegitive integer n.
If P (n) is true, so is P (n + 1) because this argument holds true for any nonnegative integer n, it establishes the second fact required by the induction proof. As a result of the Induction Principle, the predicate P (m) is true for all nonnegative integers, m.
Mathematical induction is a technique for proving the truth of a statement, theorem, or formula for each and every natural number n. This is generalized as the 'Principle of Mathematical Induction,' which we would use to prove any mathematical statement.
For instance, 13 +23 + 33 +..... +n3 = (n(n+1) / 2)
The statement is assumed to be true for all natural number values in this case.
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A chess club with 60 members is electing a new president. Christine received 21 votes. What percentage of the club members
voted for Christine?
Answer:
35
Step-by-step explanation:
\(\frac{21}{60}\) x 100% = 35
What is the product of -5/8 and -6/7
Answer:
-1 27/56
Step-by-step explanation:
Using the given fractions,
−58+−67
Applying the fractions formula for addition,
=(−5×7)+(−6×8)8×7
=−35+−4856
=−8356
Simplifying -83/56, the answer is
=−12756
Find a irrational number that is between 5.2 and 5.5 how is it irrational and around to the nearest hundred
Answer:
√29 ≈ 5.39
Step-by-step explanation:
There are an infinite number of irrational numbers between any pair of numbers you care to name. Some are "algebraic" in that they are roots of polynomials. Some are not. You can make up one simply by identifying a rule that can be used to determine the value.
π + 2.2 ≈ 5.34 . . . . sum of rational and irrational
√29 ≈ 5.39 . . . . . . root of a number that is not a square
5.21234567891011121314151617181920... digits are sequential integers
≈ 5.21
∛150 ≈ 5.31 . . . . . . root of a number that is not a cube
Question 1 of 10
Simplify the following expression.
3x^4+2x³-5x² +4x²+6x-2x-3x^4 +7x^5-3x³
Combining like terms yields 7x⁵ - x³ - x² + 4x.
PLEASE ANSWER ,in terms of the trigonometric ratios for BCD,what is the lenght of BD? insert text on the triangle in geogebrea to show the lenght of BD. take a screenshot of the triangle with the text,save it,and insert the image in the space below
By applying the law of sine, the length of side BD is equal to 9.05 cm and the image of right-angled triangle BCD is shown in the image attached below.
How to calculate the length of BD?In order to determine the length of side BD, we would apply the law of sine because both side BD and side BC represent the opposite side and hypotenuse of right-angled triangle BCD respectively.
Mathematically, the law of sine is given by this mathematical expression:
sin(θ) = Opp/Hyp
Where:
Opp is the opposite side of a right-angled triangle.Hyp is the hypotenuse of a right-angled triangle.θ is the angle.Substituting the parameters into the formula, we have;
sin(θ) = BD/BC
sin(74) = BD/9.41
Cross-multiplying, we have:
BD = 9.41 × sin(74)
BD = 9.41 × 0.9613
BD = 9.05 cm.
By applying the law of sine, the length of side BD is equal to 9.05 cm and the image of right-angled triangle BCD is shown in the image attached below.
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A grocery store clerk has 16 oranges, 20 apples, and 24 pears. The clerk needs to put an equal number of apples, oranges, and pears into each basket. What is the greatest number of baskets that can be made so that no fruit is left?
Answer:
4 oranges, 5 apples, 6 pears in each bag
Step-by-step explanation:
theyre all divisible by 4
Population of Olde Town
What is the slope for this scenario?
0-500
0.250
200
Answer:
- 250
Step-by-step explanation:
Pick two points along the line of the graph
(4,7000) and (8,6000)
Using the slope formula
m = (y2-y1)/(x2-x1)
= (6000-7000)/(8-4)
-1000/4
- 250
Answer:
-250
Step-by-step explanation:
Help please I beg of you
Answer:
45.7 meters
Step-by-step explanation:
15 = 6 + 7y
9 = 7y
y = 1.3
The two lengths are still the same, so you can set the two parts equal to the whole. Now that you have y you can substitute it in and add all the sides together.
3y + 7y + 3y + 6y + 6 +15 = P
3(1.3) + 7(1.3) + 3(1.3) + 6(1.3) + 6 + 15 = P
P = 45.7 meters
Find the mean, median, mode and range for each set of data. Calculator usage is encouraged!
1. 23, 87, 19, 34, 37, 87, 81, 5, 14, 100, 26 Please help thank you!
Answer:
mean: 46.63636
median: 34
mode: 87
range:95
How To:
Step 1 : To find Mean
Average = ( 1 + 5 + 5 + 7 + 8 + 10 ) / 6
=36 / 6
Mean = 6
Step 2 : To find Median
Middle value = ( 5 + 7 ) / 2
= 12 / 2
Median = 6
Step 3 : To find Mode
Mode = 5 (The number with more repetition, here 5 is repeated two times)
Step 4 : To find Range
Range = Largest number - Smallest number
= 10-1
= 9
Range = 9
Answer:
Mean: 46.6
Mode: 87
Median: 34
Range: 95
Step-by-step explanation:
Mean: (finding the average)
Median: (the middle number of the data set)
Mode: (the most number repeated from the data set)
Range: (is the difference between the highest value and the lowest value)
first arrange the following data set.
23, 87, 19, 34, 37, 87, 81, 5, 14, 100, 26
so:
5, 14, 19, 23, 26, 34, 37, 81, 87, 87, 100
Lets us first find the mean by adding up all the numbers and dividing it by the amount of numbers in the data set.
Mean: 5 + 14 + 19 + 23 + 26 + 34 + 37 + 81 + 87 + 87 + 100 = 513/11 = 46.6
Mode: 87
Median: 34
Range: 100 - 5 = 95
A machine at a food-distribution factory fills boxes of rice. The distribution of the weights of filled boxes of rice has an
approximately Normal distribution, with a mean of 28.2 ounces and a standard deviation of 0.4 ounces. What
percentage of filled boxes of rice have a weight between 28 and 29 ounces?
Find the z-table here.
O 33.1%
O 36.7%
O 63.3%
66.9%
Answer:
D
Step-by-step explanation:
I got it right
Using the normal distribution, it is found that 66.9% of filled boxes of rice have a weight between 28 and 29 ounces.
Normal Probability DistributionThe z-score of a measure X of a normally distributed variable with mean \(\mu\) and standard deviation \(\sigma\) is given by:
\(Z = \frac{X - \mu}{\sigma}\)
The z-score measures how many standard deviations the measure is above or below the mean. Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.In this problem, the mean and the standard deviation are given, respectively, by: \(\mu = 28.2, \sigma = 0.4\).
The proportion of filled boxes of rice have a weight between 28 and 29 ounces is the p-value of Z when X = 29 subtracted by the p-value of Z when X = 28, hence:
X = 29:
\(Z = \frac{X - \mu}{\sigma}\)
\(Z = \frac{29 - 28.2}{0.4}\)
Z = 2
Z = 2 has a p-value of 0.977.
X = 28:
\(Z = \frac{X - \mu}{\sigma}\)
\(Z = \frac{28 - 28.2}{0.4}\)
Z = -0.5
Z = -0.5 has a p-value of 0.308.
0.977 - 0.308 = 0.669 = 66.9%.
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given triangle abc is similar to triangle efg, with medians cd and gh respectively, ac=9, eg=6, cd=x+2, gh=2x-4. find the length of cd
Answer:
X= 9//
Step-by-step explanation:
abc = efg
ac + cd = eg + gh
9 + (x+2) = 6 + (2x-4)
9 - 6 = 2x-4 - (x+2)
3 = x - 6
3+6 = x
9 = x//
The mean life of a new smart LED bulb is 20,000 running hours with a standard deviation is 2,250 hours. The data is normally distributed. If a home improvement store sold 18,000 of these light bulbs in the first year of production, how many light bulbs would you expect to last longer than 22,250 hours?
Answer: The expected number of bulbs that would last longer than 22,250 hours is approximately 2,857.
Step-by-step explanation:
To solve this problem, we can start by finding the z-score for 22,250 using the formula:z = (x - mean) / standard deviationz = (22,250 - 20,000) / 2,250 = 1Next, we need to find the proportion of bulbs lasting longer than 22,250. We can look up this proportion in a standard normal distribution table or use a calculator, which gives us a probability of 0.1587.Finally, we can use this probability to find the expected number of bulbs that will last longer than 22,250:Expected number of bulbs = probability * total number of bulbs sold Expected number of bulbs = 0.1587 * 18,000 = 2,857Therefore, we can expect that approximately 2,857 of the 18,000 bulbs sold will last longer than 22,250 running hours.
Answer:
the afternoon is the right one
What is 60% of 50?
20
30
40
60
Step-by-step explanation:
60/100 ×50
= 30 ........
The solution to a system of two linear equations is x = 3; y = 9.
How could the intersection of the graphs of the two equations be located on a coordinate grid?
What does the solution to a system of two linear equations mean on the graph?
Can you have more than one solution to a Linear system of equations?
Can you have exactly two solutions to a Linear system of equations?
Can you have no solutions to a Linear system of equations?
:: From the origin, move 3 units up and 9 units right
:: The point where the lines cross the y-axis
:: The point that the two lines DO NOT have in common
=
:: No, because lines are straight
POSSIBLE POINTS: 13.0-
From the origin, move 3 units right and 9 units up
::The point of intersection of the two lines
Yes, if both lines are the same exact line :: Yes, if the lines are parallel
:: Yes, because the lines could cross each other twice
The lines intercept at the point (3, 9), and:
A system of linear equations can have one solution, no solutions, and infinite solutions, these are the only options.
How could the intersection of the graphs of the two equations be located on a coordinate grid?If we have a system of equations, the solutions of the system are the points where the graphs of the equations intercept.
Here we know that the solution of the system of linaer equations is (3, 9), this means that the interception of the linear equations is at that point.
Can you have more than one solution to a Linear system of equations?
Yes, you can have:
no solution.
one solution
infinite solutions.
These are the 3 options.
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Sarah climbed 3,150 feet of the way up Pikes Peak and then stopped to rest. After she stops, she continues to climb at a rate of 75 feet per hour for h hours. Which expression indicates her elevation, in feet, h hours after she stops?
A.
3,150 ÷ 75 × h
B.
3,150 - 75 × h
C.
(3,150 + 75) ÷ h
D.
3,150 + 75 × h
Answer:
im pretty sure its A
Step-by-step explanation:
Answer:
the answer would be A. 3,150 / 75 x h
Step-by-step explanation:
plz help Lucas always follows the same recipe to make salsa.Lucas plots points on the coordinate plane below to show how many tomatoes he needs to make different numbers of batches of salsa.
Which of the following ordered pairs could Lucas add to the graph?
Answer:
3,1
Step-by-step explanation:
the other person accidently did it wrong
Answer:
(4,12)
Step-by-step explanation:
Since the slope is (3,1) you go up 3, 1 and when you get 12,4 you graph x then y so, (x,y) = (4,12)
Hope it helps:)
i need the answer of this 9th grade question
The amount of fabric used to make the number cube is given as follows:
C. 294 cm².
How to obtain the amount of fabric?The amount of fabric used to make the number cube is represented by the surface area of the number cube.
The surface area of a cube of side length a is given by the equation presented as follows:
S = 6a².
The side length for this problem is given as follows:
a = 7 cm.
Hence the surface area of the cube is calculated as follows:
S = 6 x 7²
S = 294 cm².
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Solve the equation for θ, where
0 ≤ θ ≤ 2π.
(Enter your answers as a comma-separated list.)
2 sin2(θ) = 1
Answer:
\(\dfrac{\pi}{4},\dfrac{3\pi}{4}\)
Step-by-step explanation:
\(2\sin^2(\theta)=1\)
Divide both sides by 2:
\(\sin^2(\theta)=\dfrac{1}{2}\)
Take the square root of both sides:
\(\sin(\theta)=\dfrac{1}{\sqrt{2}}=\dfrac{\sqrt{2}}{2}\)
The only two places on the unit circle where the y value of the point is \(\dfrac{\sqrt{2}}{2}\) are at:
\(\dfrac{\pi}{4},\dfrac{3\pi}{4}\)
Hope this helps!
π/4 , 3π/4 is the solution of the given equation
What is Trigonometric EquationsThe equations that involve the trigonometric functions of a variable are called trigonometric equations. In the upcoming discussion, we will try to find the solutions to such equations. These equations have one or more trigonometric ratios of unknown angles. For example, cos x -sin2 x = 0, is a trigonometric equation that does not satisfy all the values of x. Hence for such equations, we have to find the values of x or find the solution.
According to the question
2\(sin^{2}\)θ = 1
Divide both sides by 2:
\(sin^{2}\)θ = 1/2
Take the square root of both sides:
sinθ = 1/\(\sqrt{2}\) = \(\sqrt{2}\)/2
The only two places on the unit circle where the y value of the point is are at:
π/4 , 3π/4
Hence,π/4 , 3π/4 is the solution of the given equation
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A rocket is launched in the air. Its height in feet is given by h(t) = - 16t ^ 2 + 112t where t represents the time in seconds after launch. What is the appropriate domain for this situation?
Answer:
Step-by-step explanation:
A
Somebody please do this right for me
I really need the right answer and anybody who puts there time into it I will give brainlist
Step-by-step explanation:
What do u mean by reflected on the axis? You want the equation?
whats the answer to 10/y = 2/9
Answer:
y=45
Step-by-step explanation:
Answer:
=45
Step-by-step explanation:
Please help ASAP I need it right now
Answer:
(0, -23)
Step-by-step explanation:
the slope is -12/18 or -2/3 in reduced form
i used the point (-36,1) and -2/3 as the slope to find 'b' (the y-intercept):
y = mx + b
1 = -2/3(-36) + b
1 = 72/3 + b
1 = 24 + b
-23 = b
Understand How far apart are two parallel lines ℓ and m such that
T〈4, 0〉 (△DEF) = (Rm ∘Rℓ)(△DEF)?
Answer:
2 units
Step-by-step explanation:
What is the solution of the system
of equations?
2x + 5y = 20
Y=-2/5x-1
Answer:
no solutions
Step-by-step explanation:
Substitute -2/5(x) - 1 for y in 2x + 5y = 20
\(2x + 5(-\frac{2}{5}-1)=20\) \(2x + (5)(\frac{-2}{5}x)+(5)(-1)=20\) (Distribute)\(2x -2x - 5 = 20\) (Simplify)\(-5 = 20\) (Simplify)\(-5+5=20+5\) (Add 5 to both sides)\(0 = 25\)Therefore, the answer is no solutions.
1.Use the Pythagorean Theorem to find AD and DC. Then find AC using addition. Show your calculations.
Answer:
c=a2+b2=102+172≈19.72308
Step-by-step explanation:
a calculator bro its easy
You measure 48 backpacks' weights, and find they have a mean weight of 70 ounces. Assume the population standard deviation is 6.4 ounces. Based on this, construct a 99% confidence interval for the true population mean backpack weight.
Give your answers as decimals, to two places
The 99% confidence interval for the true population mean backpack weight is approximately (68.15, 71.85) ounces, rounded to two decimal places.
To construct a 99% confidence interval for the true population mean backpack weight, we can use the formula:Confidence Interval = Sample Mean ± (Critical Value * Standard Deviation / √Sample Size).
Since the population standard deviation is known, we can use the z-distribution and find the critical value corresponding to a 99% confidence level. The critical value for a 99% confidence level is approximately 2.576.
Given that the sample mean weight is 70 ounces, the population standard deviation is 6.4 ounces, and the sample size is 48, we can calculate the confidence interval:
Confidence Interval = 70 ± (2.576 * 6.4 / √48).
Simplifying the expression, we get:
Confidence Interval ≈ 70 ± 1.855.
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The pyramid and prism above have the same triangular base and height. The volume of the pyramid is 18 cubic inches. What is the volume of the prism?
A. 36 cubic inches
B. 72 cubic inches
C. 6 cubic inches
D. 54 cubic inches
Alex and Lara have $21.00. each to spend at a book fair, where all students receive a 35% discount. They both want to purchase a copy of the same book, which normally sells for $28.50 plus 10% sales tax. To check if he has enough to purchase the book, Alex takes 35% of $28.50 and subtract that amount from the normal price. He takes 10% of the discounted selling price and adds it back to find the purchase amount. Lara takes 65% of the normal purchase price and then computes 110% of the reduced price. Is Alex correct? Is Lara correct? Do they have enough money to purchase the book? explain your answer using complete sentences and show your work.
To begin, let's find how much the book is including tax and the student discount. Once we find this, we can see if Lara or Alex is correct and if they can afford it.
First, we want to compute the student discount. The student discount is 35%. Thus, we can do 0.65 x 28.50 = 18.525. With 10% tax, we have 18.525 x 1.1 = 20.3775. Which will round up to $20.38.
Now, lets see what Alex did and if he got the same answer. First he takes 35% of $28.50 and subtracts it from the normal price.
.35 x 28.50 = 9.975
28.50 - 9.975 = 18.525
Then he takes 10% of this number and adds it back.
.10 x 18.525 = 1.8525
18.525 + 1.8525 = 20.3775
Alex has the correct answer.
Next, we will see if Lara computed it correctly.
First she takes 65% of the normal price.
0.65 x 28.50 = 18.525
Then she computes 110% of the reduced price.
18.525 x 1.10 = 20.3775
Lara also gets the correct answer.
So, do they have enough money to purchase the book?
YES:
$20.38 < $21
Is Alex correct?
YES
Is Lara correct?
YES
Although they used different methods to get the answer, they both got the right one!
What is the area of the figure below?
Answer:
please attach the figure
Step-by-step explanation:
no figure provided
Answer:
There is no picture for the area of the figure
Step-by-step explanation:
Please attach the picture next time in order for me to help
Select the correct answer.
Which graph represents the solutions to this equation?
x2 + 8x = -20
(as a graph pls!)
Answer:
Step-by-step explanation: