Using the given summation definition,
The value of S₄ is 2.809
The value of S₈ is 4.88
Sum of series: Calculating the value of S₄ and S₈From the question, we are to evaluate the value of S₄ and S₈
From the given information, we have that
\(s_n = \[ \sum_{i-1}^{n} \frac{8}{i+9} \]\)
To determine S₄
\(s_4 = \[ \sum_{i=1}^{4} \frac{8}{i+9} = \frac{8}{1+9} + \frac{8}{2+9} + \frac{8}{3+9} + \frac{8}{4+9}\)
= \(\frac{8}{10} + \frac{8}{11} + \frac{8}{12} + \frac{8}{13}\)
≈ 2.809
To determine S₈
\(s_8 = \[ \sum_{i=1}^{4} \frac{8}{i+9} = \frac{8}{1+9} + \frac{8}{2+9} + \frac{8}{3+9} + \frac{8}{4+9} + \frac{8}{5+9} + \frac{8}{6+9} + \frac{8}{7+9}+ \frac{8}{8+9}\)
= \(\frac{8}{10} + \frac{8}{11} + \frac{8}{12} + \frac{8}{13} + \frac{8}{14} + \frac{8}{15}+ \frac{8}{16}+ \frac{8}{17}\)
≈ 4.88
Hence,
The value of S₄ is 2.809
and
The value of S₈ is 4.88
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A triangle has sides with lengths of 7 yards, 8 yards, and 9 yards. Is it a
right triangle?
Answer:
No, it is not a right triangle.
Step-by-step explanation:
A right triangle will follow the Pythagorean Theorem: a² + b² = c²
c is the hypotenuse, or the longest side. In this case, it is 9.
That means a and b are 7 and 8.
Now let's plug in the values to see if they simplify correctly.
(7)² + (8)² = (9)²
Simplify the exponents.
49 + 64 = 81
Add the left side.
113 = 81
The above expression is not true; therefore, this triangle is not a right triangle.
b. Rewrite 4 x 63 as the product of a unit fraction and a whole number.
Solve.
Rewriting 4 x 3/6 as the product of a unit fraction and a whole number is: 12 * 1/6
How to multiply fractions?The parameters are given as:
Number - 4
Fraction - 3/6
The following steps can be used to determine the product as the product of a whole number and a unit fraction:
Step 1 - Remember the whole number are those numbers that involve all positive integers and zero.
Step 2 - Also remember that the unit fraction is nothing but a fraction whose numerator is 1.
Step 3 - Write the given expression.
4 * 3/6
Step 4 - Convert the given fraction into a unit fraction by multiplying 4 by 3 in the above expression.
4 * 3 * 1/6
Step 5 - Simplify the above expression.
12 * 1/6
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Erika's toy is valued at €450. Its value increased by 10% then decreases by 10% the year after. What is the value of Erika's toy after these two changes?
Answer:
€445.50-------------------------
Initial value of the toy is €450.
After 10% increase the value is:
€450 + 10% = €450*1.1 = €495After further 10% decrease the value becomes:
€495 - 10% = €495*0.9 = €445.50The final value of the toy is €445.50.
Simplify: 6! − 3! 6!(1 − 0.5!) 3!((6x5x4) − 1) 3!(2! − 1) 6!(1 − 2!)
The simplified expression of the complex number 6! - 3! is another complex number 6i(1 - 0.5)
How to simplify the expression?The complex number expression is given a:
6! - 3!
Factor out i from the expression
6! - 3! = i(6 - 3)
Factor out 6 from the expression
6! - 3! = 6i(1 - 0.5)
The above means that the simplified expression of the complex number 6! - 3! is 6i(1 - 0.5)
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M
Check all that apply.
The angles that we have in the image here are:
supplementary angleright angleWhat is a supplementary angle?When two angles are measured, they sum up to 180. They are said to be supplementary angles.
On the question, we have two angles that are 90 degrees on a straight line. Hence they are supplementary.
What is a right angle
This is an angle that is at 90 degrees. We have to two right angles on the diagram that we have here.
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A bag contains 3 blue marbles, 10 green marbles, 4 yellow marbles, and 8 red marbles. A marble is chosen at random, not replaced, then another marble is chosen. What is the probability that it is a red marble, then a blue marble? Write your answer as a fraction in simplest form.
Answer:
There are a total of 25 marbles in the bag.
The probability of choosing a red marble first is 8/25 since there are 8 red marbles out of 25 marbles in the bag.
Since a marble is not replaced after the first selection, there are now 24 marbles in the bag. There are still 3 blue marbles in the bag.
The probability of choosing a blue marble second, after a red marble has already been selected, is 3/24 or 1/8 since there are 3 blue marbles left out of 24 marbles in the bag.
To find the probability of both events occurring together, we multiply their individual probabilities:
8/25 x 1/8 = 1/25
Therefore, the probability that a red marble is chosen first, followed by a blue marble, is 1/25.
Which equation represents a line that passes through (4, 1/3) and had a slope of 3/4?
The equation of line passes through the point (4, 1/3) will be;
⇒ y = 3/4x - 8/3
What is Equation of line?The equation of line in point-slope form passing through the points
(x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
The point on the line are (4, 1/3).
And, The slope of the line is,
⇒ m = 3/4
Now,
Since, The equation of line passes through the point (4, 1/3).
And, Slope of the line is,
m = 3/4
Thus, The equation of line with slope 1/4 is,
⇒ y - 1/3 = 3/4 (x - 4)
⇒ y - 1/3 = 3/4 (x - 4)
⇒ y - 1/3 = 3/4x - 3
⇒ y = 3/4x - 3 + 1/3
⇒ y = 3/4x - 8/3
Therefore, The equation of line passes through the point (4, 1/3) will be;
⇒ y = 3/4x - 8/3
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If the measure of angle ABC is 68°, what is the measure of arc AB?
Answer:
136
Step-by-step explanation:
While there is no picture for this question, I was able to find this question online, so that should be the correct answer.
ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing. Show your work or give an explaination.
Answer:
X is 108, infinite
Step-by-step explanation:
Jax bought a package of plastic utensils for a picnic. There are a total of 40 utensils,
and 10 of them are knives. What percent of the plastic utensils are knives?
4) Pick the model that represents the problem.
0%
0%
?
Submit
10
10
What percent of the plastic utensils are knives?
100%
40
100%
40
Answer:
25% were knives
Step-by-step explanation:
If a binary logistic regression has a pseudo R-Square (L) of 60%, then a) the model is better than another logistic regression with a R-square (CS) of 50%. b) 60% of the variation in the data can be explained by the logistic regression c) Other types of pseudo R-squares may be greater or less than 60% with the same logistic regression model. d) the model is better than another multiple linear regression model with an R- square of 55%.
The correct answer is c) Other types of pseudo R-squares may be greater or less than 60% with the same logistic regression model.
Pseudo R-squares, such as the one used in logistic regression, are measures of how well the model fits the data, but they cannot be directly compared to R-squared values from other types of regression models. Therefore, we cannot conclude that the logistic regression model with a pseudo R-Square of 60% is better than another logistic regression with an R-square (CS) of 50% or a multiple linear regression model with an R-square of 55%. However, we can say that 60% of the variation in the data can be explained by the logistic regression model, based on its pseudo R-Square value.
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Isabel works for a company that makes toys. She is trying to figure out what types of toys kids enjoy
playing with most. She started with a survey that asks about whether kids liked dolls or trains. She
surveyed 80 kids. Of the kids who don't like dolls, 30% more kids like trains than don't like trains.
out the rest of his table.
The type of toy the kids enjoyed the most is the doll.
Evaluation of toys enjoyed mostThe total number of kids evaluated = 80
The percentage of kids that like train = 30%
The percentage of kids that like doll = 70%
30% of 80 = 30/100×80
= 2400/100
= 24
70% of 80 = 70/100×80
= 5600/100
= 56
Therefore, the type of toy the kids enjoyed the most is the doll.
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What’s 29.75 simplified?
Answer:
119/4
Step-by-step explanation:
Distribute to create an equivalent expression with the fewest symbols possible.
\dfrac15(15+10k) =
5
1
(15+10k)=start fraction, 1, divided by, 5, end fraction, left parenthesis, 15, plus, 10, k, right parenthesis, equals
The expression when distributed is 3 + 2k
How to create an equivalent expressionFrom the question, we have the following parameters that can be used in our computation:
1/5(15 + 10k)
The distribution property states that
a(b + c) = ab + ac
using the above as a guide, we have the following:
1/5(15 + 10k) = 1/5 * 15 + 1/5 * 10k
Evaluate the products
1/5(15 + 10k) = 3 + 2k
Hence, the equivalent expression is 3 + 2k
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Which ordered pair is a solution of the equation shown? A.-3/4,- 1/2 B. 0,3/4 C.4/3, 1/2 D. 4, 3/2
pls hurry = 50 point
Answer:
the answer is b, c, d, a, respectively
what is the gcm of -4 and 6?
Answer:
Step-by-step explanation:
We will first find the prime factorization of 4 and 6. After we will calculate the factors of 4 and 6 and find the biggest common factor number .
Step-1: Prime Factorization of 4
Prime factors of 4 are 2. Prime factorization of 4 in exponential form is:
4 = 22
Step-2: Prime Factorization of 6
Prime factors of 6 are 2, 3. Prime factorization of 6 in exponential form is:
6 = 21 × 31
Step-3: Factors of 4
List of positive integer factors of 4 that divides 4 without a remainder.
1, 2
Step-4: Factors of 6
List of positive integer factors of 6 that divides 4 without a remainder.
1, 2, 3
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 4 and 6. The biggest common factor number is the GCF number.
So the greatest common factor 4 and 6 is 2.
Answer: 2 the gcm of -4 and 6 is two
cos (x + 16) = sin(3x – 2)
Answer:
x = 19
Step-by-step explanation:
So cos and sin are closely related, but they are not equal. In order for these two to be equal to each other, the angles (in the parenthesis by the cos and by the sin) have to be complementary. That is, they have to add up to 90°
Use this idea to set up an equation.
x + 16 + 3x - 2 = 90
Combine like terms.
4x + 14 = 90
Subtract 14.
4x = 76
Divide by 4.
x = 19
x = 19
If you are kooking for the angles:
x + 16
= 19 + 16
= 35
and
3x - 2
= 3(19) - 2
= 57 - 2
= 55
Check: 35 + 55=90
Also,
cos35 = sin55
student 1 y=-3x+x student 2 y=7x/10 student 3 y=4(2-x) Which students write an equation of a nonlinear function?
Answer:
its 547632
Step-by-step explanation:
cuz yeeeeeeeeee
Find the sin of angle T.
Thank you :)
Answer:
More precisely, the sine of an angle t equals the y-value of the endpoint on the unit circle of an arc of length t.
Step-by-step explanation:
Bunctions, the sine function has an input and an output.
Answer: 7/25
Step-by-step explanation:
To find the sine you divide the opposite side of the angle by the hypotenuse
Dan multiplied 1,563 by 4 and got the incorrect product of 2,252. Find the correct product and explain what Dan did wrong. Please help me?
Answer:
The correct product is 6,252.
I don't know what Dan did wrong lol
6multiplied by 3 to the -2nd power minus 3 to the fourth power multiplied by 9 plus 4 to the 0th power
Help Simplify: Equation in screenshot
The solution to the given expression \(\sqrt[4]{6561a^{12}b^{8}}\) will be 9a³b². The correct option is D.
What is a radical expression?The square root or nth roots are represented by the symbol. Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
The given expression will be solved as below:- First, write the expression as 9a³b² to the power of 4 and whole to the power of one by four. Simplify the given expression below:-
\(\sqrt[4]{6561a^{12}b^{8}}=[(9a^3b^2)^4]^{\frac{1}{4}}\\\sqrt[4]{6561a^{12}b^{8}}=9a^3b^2\)
Therefore, the solution to the given expression \(\sqrt[4]{6561a^{12}b^{8}}\) will be 9a³b². The correct option is D.
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Ryan and Kaine are two partners in a business. Ryan makes $3 in profits for every $4 Kaine makes. If Kaine makes $60 profit on the first item they sell, how much profit does Ryan make? *
Peggy had four times as many quarters as nickels. She had $2.10 in all. How many nickels and how many quarters did she have?
Answer:
The best way and easiest to answer is to use socratic because its helpful if you dont find the answer here.
How do you get 6.80 from 2.25 ×2.80
Answer:
answer is 6.3
Step-by-step explanation:
there is no way to get 6.80 from 2.25*2.80 because its answer is 6.3
if p(e and f)=.392, p(e/f)=.56 and p(f/e)=.7, then p(e)=
On solving the provided question, we can say that Probability(A and B) = P(A)P(B|A) and P(E or F) = P(E) + P(F) - P(E and F)
What is probability?Probability theory, a subfield of mathematics, gauges the likelihood of an occurrence or a claim being true. An event's probability is a number between 0 and 1, where approximately 0 indicates how unlikely the event is to occur and 1 indicates certainty. A probability is a numerical representation of the likelihood or likelihood that a particular event will occur. Alternative ways to express probabilities are as percentages from 0% to 100% or from 0 to 1. the percentage of occurrences in a complete set of equally likely possibilities that result in a certain occurrence compared to the total number of outcomes.
Probability(A and B) = P(A)P(B|A).
P(A and B) = P(B and A), this may also be written as P(A and B) = P(B)P(A|B).
Using the general multiplication rule, we have
P(E and F) = P(E)P(F|E)
.392 = P(E)(.7)
P(E) = .56
P(E and F) = P(F)P(E|F)
.392 = P(F)(.56), so
P(F) = .7
P(E or F) = P(E) + P(F) - P(E and F)
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Tina is saving to buy a notebook computer. She has two options. The first option is to put $300 away
initially and save $10 every month. The second option is to put $100 away initially and save $30 every
month. After how many months would Tina save the same amount using either option? How much
would she save with either option?
After
months, Tina will save $
with either option.
Answer:
Step-by-step explanation:
The number of months is our unknown, which we will call x. y is the amount she saves. Representing the fact that she puts $10 away per month is 10x. If she puts $300 down initially and then adds 10 per month to that, the first equation is
y = 10x + 300
The same goes for the second option. Putting $30 away every month is represented as 30x, and if she is starting with 100 and adding 30 a month to it, the second equation is
y = 30x + 100
We are being asked to find the number of months where the amount Tina saves is equal. Since y is the amount Tina has saved and we want to know when these amounts are equal, we will set the equations equal to each other and solve for x, the number of months.
10x + 300 = 30x + 100 and
200 = 20x so
x = 10. After 10 months, Tina will have saved the same amount of money regardless of which option she has chosen. This is only true for 10 months though. After that, one will show more of a savings than the other.
find the volume and give explanation
Answer:
Step-by-step explanation:
Gonnnnnnnnnnnnnnnnnnnnn
answer 2-4 and 8-20 please it does not need to be correct but please havve them be plausible answers
The algebraic values of x include:
2. 51 3. 50 4. 82simplest radical form: 8. 2√85 9. √89 10. 2√181 11. 2√181 12. 3√5 13. 10√516. right triangle.17. not a right triangle.18. not a right triangle.19. acute 20. acuteHow to calculate sides of a triangle?Using the same reasoning as in the previous problem:
24² + 45² = x²
576 + 2025 = x²
2601 = x²
x = ±51
Since x represents a length, discard the negative solution. Therefore, the value of x is 51.
Using the Pythagorean Theorem:
30² + 40² = x²
900 + 1600 = x²
2500 = x²
x = ±50
Since x represents a length, discard the negative solution. Therefore, the value of x is 50.
Using the Pythagorean Theorem:
18² + 80² = x²
324 + 6400 = x²
6724 = x²
x = ±82
Since x represents a length, discard the negative solution. Therefore, the value of x is 82.
Using the Pythagorean Theorem:
18² + 4² = x²
324 + 16 = x²
340 = x²
x = √340 = 2√85
Therefore, the value of x is 2√85 in simplest radical form.
Using the Pythagorean Theorem:
8² + 5² = x²
64 + 25 = x²
89 = x²
x = √89
Therefore, the value of x is √89 in simplest radical form.
Using the Pythagorean Theorem:
20² + 18² = x²
400 + 324 = x²
724 = x²
x = √724 = 2√181
Therefore, the value of x is 2√181 in simplest radical form.
Using the Pythagorean Theorem:
25² + 3² = x²
625 + 9 = x²
634 = x²
x = √634
Therefore, the value of x is √634 in simplest radical form.
Using the Pythagorean Theorem:
3² + 6² = x²
9 + 36 = x²
45 = x²
x = √45 = 3√5
Therefore, the value of x is 3√5 in simplest radical form.
Using the Pythagorean Theorem:
22² + 4² = x²
484 + 16 = x²
500 = x²
x = √500 = 10√5
Therefore, the value of x is 10√5 in simplest radical form.
To determine if a triangle is a right triangle, we can use the Pythagorean Theorem, which states that for any right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides. Therefore:
a² + b² = c²
Substituting a = 8, b = 15, and c = 17:
8² + 15² = 17²
64 + 225 = 289
289 = 289
Since the equation is true, the triangle satisfies the Pythagorean Theorem and is therefore a right triangle.
Using the same method:
27² + 36² = 45²
729 + 1296 = 2025
2025 ≠ 2025
Since the equation is false, the triangle does not satisfy the Pythagorean Theorem and is therefore not a right triangle.
Using the same method:
9² + 11² = 4²
81 + 121 = 16
202 ≠ 16
Since the equation is false, the triangle does not satisfy the Pythagorean Theorem and is therefore not a right triangle.
To determine the classification of this triangle, compare the lengths of its sides. If all sides are less than the sum of the other two, then the triangle is acute; if one side is greater than or equal to the sum of the other two, then the triangle is obtuse; and if one side is equal to the sum of the other two, then the triangle is degenerate (a straight line).
Substituting a = 3, b = 4, and c = 6:
a + b = 3 + 4 = 7 < c
b + c = 4 + 6 = 10 > a
a + c = 3 + 6 = 9 > b
Since none of the sides are equal to or greater than the sum of the other two, the triangle is acute.
Substituting a = 9, b = 11, and c = 16:
a + b = 9 + 11 = 20 < c
b + c = 11 + 16 = 27 > a
a + c = 9 + 16 = 25 > b
Since none of the sides are equal to or greater than the sum of the other two, the triangle is acute.
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Image transcribed:
Algebra Find the value of x.
1. 12, 9, x
To start, use the Pythagorean Theorem. Then substitute 9 for a, 12 for b, and x for c.
2. 45 24 x
3. 30, 40, x
4. 80, 18, x
Algebra Find the value of x. Express your answer in simplest radical form.
8. 18, 4, x
9. 8, 5, x
10. 20, 18, x
11. 25, 3, x
12. 3, 6, x
13. 22, 4, x
Is each triangle a right triangle? Explain.
16. 15, 17, 8
17. 27, 45, 36
18. 9, 11, 4
The lengths of the sides of a triangle are given. Classify each triangle as acute, right, or obtuse.
19. 3,4,6
To start, compare to a+b. Substitute the greatest length for c.
20. 9, 11, 16
Solve the formula for the specified variable.
V=BMK for B
The formula for the 'B' variable is V/MK
How to determine the expressionTo solve for the variable B is to make it the subject of formula.
Subject of formula is the variable that is expressed in terms of the other variables in a given formula, expression, function or equation.
Example;
In the equation, 2x + y = 4, let's make 'y' the subject of formula
y = 4 - 2x
Given the expression;
V=BMK
To make 'B' the subject, we need to divide both sides by the coefficients of B, we have;
V/MK = BMK/MK
B = V/MK
Thus, the formula for the 'B' variable is V/MK
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