Final answer:
To solve the sigma notation problem, we individually calculate each term for n from 1 to 5 and sum them up, resulting in a total value of 33. Thus, the correct answer is C.33.
Explanation:
The problem involves evaluating a series using sigma notation. Specifically, we're looking at the summation of 3 × (-2)n-1, with n going from 1 to 5.
To find the solution, we need to calculate each term separately for each value of n, and then sum all of the calculated terms together.
For n=1: [tex]3 \times (-2)^{1-1[/tex] = 3 × 1 = 3For n=2: [tex]3 \times (-2)^{2-1[/tex] = 3 × (-2) = -6For n=3: [tex]3 \times (-2)^{3-1[/tex] = 3 × 4 = 12For n=4: [tex]3 \times(-2)^{4-1[/tex] = 3 × (-8) = -24For n=5: [tex]3 \times (-2)^{5-1[/tex] = 3 × 16 = 48Adding these values together: 3 - 6 + 12 - 24 + 48 = 33.
So the correct answer to the summation is 33, which corresponds to choice C.
Summer looked at the formula for the Pythagorean Theorem, ashe said that it didn't matter which sides of a right triangle were a, b, and C. Is she correct?
If possible, choose k so that the following function is continuous on any interval:
f(x)= (5x^4-20x^3)/(x-4) , x≠4
f(x)= K , x=4
k=?,
Using continuity concepts, it is found that K = 320 makes the function continuous.
------------------
A function f(x) is said to be continuous at x = a if:
[tex]\lim_{x \rightarrow a^{-}} = \lim_{x \rightarrow a^{+}} = f(a)[/tex]
------------------
The piece-wise function given is:
[tex]f(x) = \frac{5x^4 - 20x^3}{x-4}, x \neq 4[/tex]
[tex]f(x) = K, x = 4[/tex]
------------------
The definition for x different of 4 can be simplified, as follows:
[tex]f(x) = \frac{5x^4 - 20x^3}{x-4} = \frac{5x^3(x - 4)}{x - 4} = 5x^3[/tex]
Thus, the simplified definition is:
[tex]f(x) = 5x^3, x \neq 4[/tex]
[tex]f(x) = K, x = 4[/tex]
------------------
For the lateral limits, x is close to but not exactly 4, so the first definition is used.
[tex]\lim_{x \rightarrow 4^-} = \lim_{x \rightarrow 4} 5x^3 = 5(4)^3 = 5 \times 64 = 320[/tex]
[tex]\lim_{x \rightarrow 4^+} = \lim_{x \rightarrow 4} 5x^3 = 5(4)^3 = 5 \times 64 = 320[/tex]
------------------
For continuity, it is needed that:
[tex]f(4) = 320[/tex]
Thus:
[tex]K = 320[/tex] makes the function continuous.
A similar problem is given at https://brainly.com/question/14755764
what is the fourth term of the expansion of the binomial (2x+5)^5
when expanded from left to right the powers of x decrease from 5 to 0 and powers of y increase from 0 to 5
substitute x =2x and y = 5
(2x + 5)⁵ = (2x)⁵ + 5(2x)⁴5 + 10(2x)³5² + 10(2x)²5³ + 5(2x)5⁴ + 5⁵
= 32x⁵ + 400x⁴ + 2000x³ + 5000x² + 6250x + 3125The system shown is____.
equivalent
independent
inconsistent
BRAINLIESTTTT!!!
If Mary pitches a baseball with the initial height of 6 feet and a velocity of 73 feet per second, how long will it take for the ball to hit the ground? :)
Three survey markers are located on a map at points H, I, and J. A triangle is formed by connecting these markers by string so that HI = 150 feet, HJ = 245 feet,and IJ = 365 feet.
Which statement is true about the measures of the angles of TriangleHIJ?
f m∠I is the largest
g m∠H is the largest
h m∠H is the smallest
j m∠I is the smallest
The measure of the side IJ is the longest one so the largest angle is ∠H. Then the correct option is B.
What is the triangle?The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180°.
Three survey markers are located on a map at points H, I, and J. A triangle is formed by connecting these markers by string so that HI = 150 feet, HJ = 245 feet, and IJ = 365 feet.
If the side is the largest one then its opposite angle will be the largest one.
The measure of the side IJ is the longest one so the largest angle is ∠H. Then the correct option is B.
More about the triangle link is given below.
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Write an equation for the line whose data is in the table below
X:1 2 5
Y: 4 6 12
All my smart people click here
please help 1. another term for adding money to an account is
A) additional
B) submission
C) contribute
D) payment
2. which situation allows you to have the most saved
A) having a set amount set aside for savings each time you are paid
B) having a set minimum or percentage for saving whichever is greater
C) having a percentage set aside for savings
D) having a percentage set aside for savings when your pay is higher and hours are more
1. Another term for adding money to an account is - contribute
One should contribute to his account. This phrase means, one should add money to his account. Contribution is addition of money in account.
2. Which situation allows you to have the most saved ?
A) having a set amount set aside for savings each time you are paid- this can be the most possible answer. Technically a person should save 20% to 25% of his income and this amount increases with income. So, each time when you are paid, set aside the savings amount.
in a club there are 10 women and 10 men. A comittee of 3 men and 2 women is to be chosen. how many different possibilities are there?
An amount of $27,000 is borrowed for 11 years at 8.25%
interest, compounded annually. If the loan is paid in full at the end of that period, how much must be paid back?
Use the calculator provided and round your answer to the nearest dollar.
The stem-and-leaf plot shows the number of home runs hit by the top major league baseball players in the 2000 season. stem leaf 3 0 0 0 0 1 1 1 1 1 1 1 2 2 2 3 3 4 4 4 5 5 5 6 6 6 7 7 8 8 9 4 0 1 1 1 1 2 2 3 3 3 4 4 7 7 9 5 0 3⏐0 ? 30 what is the probability that one of these players picked at random hit more than 35 home runs
what is the approximate area of the shaded region
How many solutions does the system have?
X+y=5
X+y=6
An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
x + y = 5
x + y = 6
5 ≠ 6
The system of equations has many solutions.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 4 is an equation.
2x + 4 - 5x is an equation.
We have,
x + y = 5 _____(1)
x + y = 6 ______(2)
Now,
Solving (1) and (2) we get,
5 = 6
This is not true.
This means that,
We have many solutions.
If we get,
x = y
0 = 0
n = n ( n can be any value)
The system of equations will have no solutions.
Thus,
x + y = 5
x + y = 6
5 ≠ 6
The system of equations has many solutions.
Learn more about equations here:
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The surface area of a rectangular prism is 792 units2. The length of the prism is 2 times the width, and the width is 4 times the height. What is the volume of the prism?
Answer:
The real answer is 846 ^-^ I got it right
The volume of the rectangular prism is 105.57
What is the volume of a rectangular prism?A rectangular prism is a three-dimensional shape that has two at the top and bottom and four are lateral faces.
The volume of a rectangular prism=Length X Width X Height
Where l, h and w represent the length, height and width respectively.
Given that;
Length of the prism is 2 times the width L = 2w
the width is 4 times the height w = 4h
Now let’s plug these values;
the surface area equation, it becomes;
A = 2(2w(w) + w(w/4) + w/4(2w))
A = 2(2w^2 + w^2/4 + w^2/2)
A = 1/2(7w^2)
792 x2 = 7w^2
w = 15.04
The volume of a rectangular prism=Length X Width X Height
V = 2w x w x w/4
V x 2 = w³
V = 15.04³/2
V = 105.57
Thus, the volume is 105.57.
Learn more about a rectangular prism;
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Find the length of JK and the measure of M. A. JK=26, m=33 B. JK=26, M=54. C. JK=33, M=26. D. JK=54, M=33
Answer:
c i would think/suppose
Step-by-step explanation:
The picture below shows a portion of a river dam:
Which of the following can be used to calculate the height of the river dam? (6 points)
220 cos 40°
220 divided by tan 40 degrees
220 sin 40°
220 divided by cos 40 degrees
Answer:
220cos40
Step-by-step explanation:
cos40=x/220
(220)cos40=x/220(220)
220cos40=x
PLEASE HELP
8.07a, part 1
1. Find the vertex, focus, directrix, and focal width of the parabola. (1 point)
negative 1 divided by 40 x squared equals y
A) Vertex: (0, 0); Focus: (0, -10); Directrix: y = 10; Focal width: 160
B) Vertex: (0, 0); Focus: (-20, 0); Directrix: x = 10; Focal width: 160
C) Vertex: (0, 0); Focus: (0, -10); Directrix: y = 10; Focal width: 40
D) Vertex: (0, 0); Focus: (0, 10); Directrix: y = -10; Focal width: 10
2. Find the standard form of the equation of the parabola with a focus at (0, -2) and a directrix at y = 2.
A)y2 = -2x
B) y2 = -8x
C) y equals negative 1 divided by 8 x squared
D) y equals negative 1 divided by 2 x squared
3. Find the standard form of the equation of the parabola with a focus at (-8, 0) and a directrix at x = 8.
A) y equals negative 1 divided by 32 x squared
B) y2 = 16x
C) 16y = x2
D) x equals negative 1 divided by 32 y squared
4. A building has an entry the shape of a parabolic arch 84 ft high and 42 ft wide at the base, as shown below.
A parabola opening down with vertex at the origin is graphed on the coordinate plane. The height of the parabola from top to bottom is 84 feet and its width from left to right is 42 feet.
Find an equation for the parabola if the vertex is put at the origin of the coordinate system.
A) y2 = -21x
B) x2 = -21y
C) x2 = -5.3y
D) y2 = -5.3x
5. Find the center, vertices, and foci of the ellipse with equation x squared divided by 81 plus y squared divided by 225 equals 1 .
A) Center: (0, 0); Vertices: (-15, 0), (15, 0); Foci: (0, -9), (0, 9)
B) Center: (0, 0); Vertices: (0, -15), (0, 15); Foci: (-9, 0), (9, 0)
C) Center: (0, 0); Vertices: (0, -15), (0, 15); Foci: (0, -12), (0, 12)
D) Center: (0, 0); Vertices: (-15, 0), (15, 0); Foci: (-12, 0), (12, 0)
6. Find the center, vertices, and foci of the ellipse with equation 2x2 + 8y2 = 16.
A) Center: (0, 0); Vertices: the point zero comma negative two square root two and the point zero comma 2 square root two ; Foci: Ordered pair 0 comma negative square root 6 and ordered pair 0 comma square root 6
B) Center: (0, 0); Vertices: (-8, 0), (8, 0); Foci: Ordered pair negative 2 square root 15 comma 0 and ordered pair 2 square root 15 comma 0
C) Center: (0, 0); Vertices: (0, -8), (0, 8); Foci: Ordered pair 0 comma negative 2 square root 15 and ordered pair 0 comma 2 square root 15
D) Center: (0, 0); Vertices: the point negative square root six comma zero and the point square root six comma zero ; Foci: Ordered pair negative square root 6 comma 0 and ordered pair square root 6 comma 0
7. Graph the ellipse with equation x squared divided by 36 plus y squared divided by 49 equals 1 .
A) A horizontal ellipse is shown on the coordinate plane centered at the origin with vertices at the point negative seven comma zero and the point seven comma zero. The minor axis has endpoints at zero comma six and zero comma negative six.
B) A vertical ellipse is shown on the coordinate plane centered at the origin with vertices at the point zero comma seven and zero comma negative seven. The minor axis has endpoints at negative six comma zero and six comma zero.
C) A horizontal ellipse is shown on the coordinate plane centered at (6, 7) with vertices at (–1, 7) and (13, 7) and minor axis endpoints at (6, 13) and (6, 1).
D) A horizontal ellipse is shown on the coordinate plane centered at the point six comma seven with vertices at the point negative one comma seven and thirteen comma seven. The minor axis has endpoints at six comma thirteen and six comma one.
8. Find an equation in standard form for the ellipse with the vertical major axis of length 10 and minor axis of length 8.
A) x squared divided by 25 plus y squared divided by 16 equals 1
B) x squared divided by 5 plus y squared divided by 4 equals 1
C) x squared divided by 4 plus y squared divided by 5 equals 1
D) x squared divided by 16 plus y squared divided by 25 equals 1
9. Find the vertices and foci of the hyperbola with equation quantity x plus 5 squared divided by 36 minus the quantity of y plus 1 squared divided by 64 equals 1 .
A) Vertices: (-1, 3), (-1, -13); Foci: (-1, -13), (-1, 3)
B) Vertices: (3, -1), (-13, -1); Foci: (-13, -1), (3, -1)
C) Vertices: (-1, 1), (-1, -11); Foci: (-1, -15), (-1, 5)
D) Vertices: (1, -1), (-11, -1); Foci: (-15, -1), (5, -1)
Vertex: (0, 0); Focus: (0, -10); Directrix: y = 10; Focal width: 10
2. C) y equals negative 1 divided by 8 x squared
3. D) x equals negative 1 divided by 32 y squared
4. C) x2 = -5.3y
5. C) Center: (0, 0); Vertices: (0, -15), (0, 15); Foci: (0, -12), (0, 12)
6. None from the choices, it should be
Center: (0, 0); Vertices: the point negative two square root two comma zero and the point 2 square root two comma zero; Foci: Ordered pair negative square root 6 comma zero and ordered pair square root 6 comma zero
7. B) A vertical ellipse is shown on the coordinate plane centered at the origin with vertices at the point zero comma seven and zero comma negative seven. The minor axis has endpoints at negative six comma zero and six comma zero.
8. D) x squared divided by 16 plus y squared divided by 25 equals 1
9. D) Vertices: (1, -1), (-11, -1); Foci: (-15, -1), (5, -1)
Answer:
the answer is letter C
Step-by-step explanation:
Let set C = {even numbers between 1 and 99} and set D = {numbers between 1 and 150 that are evenly divisible by 10}.
What is C ∩ D?
@ganeshie8,
Suppose rebecca needs a dog sitter so that she can travel to her sister's wedding. rebecca values dog sitting for the weekend at $200. susan is willing to dog sit for rebecca so long as she receives at least $150. rebecca and susan agree on a price of $175. suppose the government imposes a tax of $10 on dog sitting. the tax has made rebecca and susan worse off by a total of
The tax has only made Susan worse off by $10 or 5.7% because Rebecca is the one who is going to pay for the dog sitting and not Susan (who is going to have an income of $165 after-tax).
Further Explanation:
Income Tax: It is the additional payment that an individual needs to pay on the amount of income he/she generates. Here $10 is the tax on the income which Susan is going to generate by dog sitting the dog of Rebecca.
Here, it can be seen that Susan is the one who is earning from the transaction and not Rebecca. So, Rebecca is should not bear any tax payable to the government since both of them agree to a price of $175 so that is the only amount which Rebecca is going to pay for dog sitting. Also, if Susan herself pays the whole amount of tax, it still would not bother her because her expectation from dog sitting was $150 which is still lesser than what she expected in the first place.
Learn more:
1. Learn more about the tax on the profit from selling the fixed assets
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2. Learn more about the personal tax
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3. Learn more about the role of money
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Answer details:
Grade: Senior School
Subject: Taxation
Chapter: Tax imposed on various services.
Keywords: Income tax, payment of tax, dog sitting during the wedding, dog sitter, worse off condition of Rebecca and Susan.
helppppppppppppppppppp
ALL I NEED YOU GUYS TO DO IS TO EXPLAIN THIS IN THE MOST FANCY WAY POSSIBLE!!!! THIS IS JUST FOR FUN, I WILL MARK BRAINLIEST FOR THE FANCIEST ANSWER!!!!
WHAT IS 5x5?!?!?!?!?!
It's 25 easy how I got my answer I looked on my fingers and put 5 fingers up and i did it 5 times and got 5.10.15.20.25 that's 5 times
The tangent ratio compares the length of what to the length of what
is this a linear function , why or why not ? explain
y=x^2-1
Rachel is selling T-shirts. It costs her $5 each week to advertise her T-shirts. She buys each T-shirt for $3.50 and sells each one for $8.00. Write an equation to model the amount of profit, P, she makes from selling x T-shirts in one week.
P = 3.50x − 5
P = 8x − 3.5
P = 5x + 3.5
P = 4.5x − 5
A seller buys an item from a manufacturer for $9,500 he increases cost by %5 percent.What is the markup value?
markup = original cost x percentage markup
Answer: $475
Step-by-step explanation:
Given : A seller buys an item from a manufacturer for $9,500 he increases cost by %5 percent.
i.e. The original cost of item = $9,500
Mark up percentage = 5% = 0.05
The formula given to find the mark up value is :_
[tex]\text{Mark up}=\text{Original cost * percentage mark up}\\\\\Rightarrow\ \text{Mark up}=9500\times0.05=\$475[/tex]
Hence, the mark up value = $475
1. What is the value of x?
sin(x+22)°=cos(2x−7)°
2.Given cosx=1213 and sinx=513
.
What is ratio for tanx
?
leave answer as a fraction in simplest form
the sine and cosine are co-functions
So
sin (theta) = cos (90 - theta)------> This implies that the angles sum to 90°
therefore
( x + 22) + (2x - 7) = 90 simplify
3x + 15 = 90 subtract 15 from both sides
3x = 75 divide both sides by 3
x = 25
The answer Part 1) is x=25°
Part 2) Given cos x=12/13 and sin x =5/13
What is ratio for tanx ?
we know that
tan x = sinx / cos x
tan x = (5/13) / (12/13) = (5/13) * (13/12) = 5/12
the answer Part 2) is 5/12
I need help peeps, im having troubles
Which expressions are equivalent to the one below? Check all that apply. 9x
Answer:
C.),F.),andD.) Are correct
Step-by-step explanation:
Option: C, D and F are the correct options.
C. [tex](\dfrac{36}{4})^x[/tex]
D. [tex]9\cdot 9^{x-1}[/tex]
F. [tex]\dfrac{36^x}{4^x}[/tex]
Step-by-step explanation:We are asked to find the expression which is equivalent to:
[tex]9^x[/tex]
C)
[tex](\dfrac{36}{4})^x[/tex]
We know that:
[tex](\dfrac{36}{4})^x=9^x[/tex]
Since, 36/4=9
Hence, option: C is correct.
D)
[tex]9\cdot 9^{x-1}=9^{1+x-1}[/tex]
Since,
[tex]a^m\cdot a^n=a^{m+n}[/tex]
Hence,
[tex]9\cdot 9^{x-1}=9^x[/tex]
Hence, option: D is correct.
F)
[tex]\dfrac{36^x}{4^x}[/tex]
We know that:
[tex]\dfrac{36^x}{4^x}=(\dfrac{36}{4})^x[/tex]
Since, we know that:
[tex]\dfrac{a^n}{b^n}=(\dfrac{a}{b})^n[/tex]
Hence, we have:
[tex]\dfrac{36^x}{4^x}=9^x[/tex]
Since, 36/4=9
Hence, option: F is the correct answer.
Lines are perpendicular when the slopes are _____