Answers
=====================================================
Explanation:
We're adding terms in the form (2n+5)
The first term is when n = 3, so
2n+5 = 2*3+5 = 6+5 = 11
The next term is when n = 4, so
2n+5 = 2*4+5 = 8+5 = 13
The next term is when n = 5, so
2n+5 = 2*5+5 = 10+5 = 15
And so on
This means,
[tex]\displaystyle \sum_{n=3}^{\infty} (2n+5) = 11+13+15+17+\ldots[/tex]
which matches with choice C. The three dots indicates the pattern goes on forever.
-------------------
Choice B does not have these dots, so that's why choice B is not the answer. If we replaced the infinity symbol with 7, then choice B would be the answer.
I.e,
[tex]\displaystyle \sum_{n=3}^{7} (2n+5) = 11+13+15+17+19[/tex]
Related Questions
PLEASE HELP ME!!!!!!!!!!!! I HAVE TO TURN THIS IN 5 MINS!!!!!!!!!!!!!!!!!!!!!!
Explain how to write a linear equation from a table in the slope-intercept form. Use complete sentences. Must inlclude capital letters and punctuation where needed
Answers
Answer:The table gives you three points
that are on the line:
(-5, -7), (0, -5), (3, -3)
Use any two of them to find
the slope
m = (y2-y1)/(x2-x1)
Using (0,-5) and (3,-3):
m = (-3-(-5))/(3-0) = 2/3
Step-by-step explanation:
HURRY FAST ANSWER 50 POINTS
Select the correct answer.
Which function is nonlinear?
A.
9y + 3 = 0
B.
y - 4r = 1
C.
y = 2 + 6r4
D.
r - 2y = 7
E.
r/y + 1 = 2
Answers
Answer:
C.
y = 2 + 6r^4
Step-by-step explanation:
C.
y = 2 + 6r^4
Since this exponent is raised to a power, it is non-linear
Since the exponent is raised to the power of 4, it is a non-linear
Therefore the answer is C
Hope it helps
In the chemistry lab an experiment requires 500 mL of one ingredient to be mixed with 1000 mL of another. How many ounces is the solution?
Answers
Answer:
51
Step-by-step explanation:
1 mL = 0.034 fluid ounces
(500 + 1000) x 0.034
= 51 fluid ounces
PLZ HELP ME! What is this! I need help! y = -3x/5 + 2
Answers
Answer:
That is the slope intercept form
Step-by-step explanation:
Simplify negative 4 over 3 divided by 2 over negative 6 . (1 point)
−4
−2
2
4
Answers
Answer:
D.) 4
Step-by-step explanation:
[tex]\frac{-4}{3}[/tex] ÷ [tex]\frac{2}{-6}[/tex]
To divide fractions, just flip the second fraction and multiply
[tex]\frac{-4}{3}[/tex] x [tex]\frac{-6}{2}[/tex] = [tex]\frac{24}{6}[/tex] = [tex]4[/tex]
please simplify 6(–2y) – 9 + 4(–2y + 6) and include a step by step
Answers
Step-by-step explanation:
6(–2y) – 9 + 4(–2y + 6) original equation
-12y - 9 + -8y +24 simplify groups
-20y + 15 combine like terms
Answer:
-20y+15
Step-by-step explanation:
distribute
= 6(-2y) + -9 + (4)(-2y) + (4)(6)
= -12y + -9 + -8y + 24
Combine like terms
= -12y + -9 + -8y + 24
=(-12y + -8y) + (-9+24)
= -20y + 15
Please help me. Show work
Answers
Write the distance from the Sun for each planet using scientific notation.
pls help me I need now like in 2 min
Answers
Answer:
The sun is 9.2549 x 10^-7 miles from the earth
NOTE: I don't know how many significant figures you are needing/given.
Step-by-step explanation:
The earth is 92.549 million miles from the sun.
92 549 000 miles from the sun.
Move the decimal place left until you're right after the first significant figure.
9.2549 x 10^-7
Hi hope your having a good day please answer this
19. Name the word that matches the definition given: A ratio of two quantities with different units.
A. ratio
B. unit rate
C. proportion
D. rate
Answers
Answer:
rate
Step-by-step explanation:
i think it is this bc i did this and it is correct
Answer:
D. rate
Step-by-step explanation:
A rate is a ratio that compares two different quantities that have different units of measure. A rate is a comparison that provides information such as dollars per hour, feet per second, miles per hour, and dollars per quart, for example. An example of this can be miles per hour or g/mL.
Hope this helps! :)
Three consecutive odd integers add up to 39.
Answers
Answer:
11 , 13 , and 15
Step-by-step explanation:
Answer:
11, 13, and 15.
Hope this helps! Please mark Brainliest!
x-7(x-2)=10x+9-x i need the answer asap pls
Answers
Answer:
x=[tex]\frac{1}{3}[/tex]
Step-by-step explanation:
x-7(x-2)=10x+9-x
x-7x+14=10x+9-x Distribute -7
-6x+14=9x+9 Combine like terms
14=15x+9 Add 6x to both sides
5=15x Subtract 9 from both sides
[tex]\frac{1}{3}[/tex]=x Divide both sides by 15
⚠️⚠️PLEASE ANSWER QUESTION IM ALMOST DONE WITH THISSS⚠️⚠️
Answers
Answer:
y-inter=6
slope=2/1
Step-by-step explanation:
slope is 3
y-intercept is 6
Write the symbolic expression in words:
PLEASE SOMEONE HELP
Answers
Answer:
The expression “32” is a symbolic term. ... This means the term has variable meaning depending on which value is substituted for x. For example, if you set x=−2, you get (−2)2, another name for 4. x2−6x+4y (mentioned above) is symbolic term with two variables.
I hope that helps im only in 8th grade so I don't fully understand it either lol
Chad sells custom T-shirts with five friends. They want to make enough money so that, after splitting the earnings evenly, each person earns 40
Answers
Answer: They earned 500 bucks in total
Answer:
They want to make 200 dollars
Step-by-step explanation:
40*5=200
Samantha paid $10 to join an online book club. Then she paid $3 per e-book that she read. She has spent more than $40. How many e-books did she read? Show how you would set the problem up and the answer. * Your answer Submit Jer submit passwords through Google Forms. This form was created inside of River Grove School District 85.5. Report Abuse
Answers
Answer:
13/13.3 or 10
Step-by-step explanation:
You said she paid $10 to join, if she spent at least $40, then we subtract 10, then divide 30 by 3 then you would get 10.
If we don't have to subtract and she spent around $40 on only books, it would be 13/13.3
help PLEASE LIKE ACC STEP BY STEP FIND X PLZ
Answers
Answer:
33
Step-by-step explanation:
The sum of interior angles in a rectangle is 360°
98 + 98 + 98 + 2x = 360
294 + 2x = 360
2x = 66°
x = 33
solve absolute value equation |5c-17| = |3x +11|
Answers
9514 1404 393
Answer:
x = 3/4 or 14
Step-by-step explanation:
Assuming your equation is ...
|5x -17| = |3x +11|
it can be rewritten as two equations:
5x -17 = -(3x +11)
5x -17 = 3x +11
__
The solution to the first of these is ...
5x -17 = -3x -11
8x = 6 . . . . . . . . add 3x+17
x = 6/8 = 3/4 . . . divide by 8
The solution to the second equation is ...
5x -17 = 3x +11
2x = 28 . . . . . . . . add 17-3x
x = 14 . . . . . . . . . . divide by 2
The solutions are x = 3/4 or x = 14.
Jenya answered 24 out of 30 questions correctly on her math test and 21 out of 25 questions
correctly on her science test. On which test did she score higher?
Answers
Answer:
Science Test
Step-by-step explanation:
Math test:
24/30 so divide 24 by 30 to see the percentage she got, which is 80%
Science test:
21/25, same process as before, 21 divided by 25 is 84%
Therefore, she scored higher on the science test.
Which graph represents the function r(x) = \-21-1
D
5
3-
2
-5 - -
-5 -5 -3
1
5-5-3-2-117
3
4
1
61
5
4
3+
2+
1+
-65 +32-1
1 2 3 4 5
Answers
Answer:
The Answer is D because of the Tab Dotch Property of equality
Step-by-step explanation:
Kiri has red and white roses in groups of 8. She has x groups of red roses and y groups of white roses. Which expression shows the total number of roses that Kiri has?
x over 8 + y over 8
8x + 8y
8x + y
x + 8y
Answers
x + 8y heres the answer
Solve for z in the proportion.
Answers
Estimate the yearly (52 weeks) salary for each staff position.
worth 20 points
Answers
I hope this helps
The Elementary School Teacher that lives in Detroit, MI makes $94681.60 in 52 weeks.
The Secretary that lives in Detroit, MI makes $37606.40 in 52 weeks.
The Truck Driver that lives in Detroit, MI makes 35630.40 in 52 weeks.
The Elementary School Teacher that lives in Lincoln, NE makes 67496 in 52 weeks.
The Secretary that lives in Lincoln, NE makes 26416 in 52 weeks.
The Truck Driver that lives in Lincoln, NE makes 33113.60 in 52 weeks.
Write the augmented matrix that represents the following system of equations.
2x + 3y – 4z = 17
-5x + 11y = -7
2x + 3 = y - 4z
Answers
What is the value of the function at x=−2?
y=−2
y = 0
y = 2
y = 3
GRAPH ATTACHED
Answers
Answer:
y = 2
Step-by-step explanation:
When we have graph is given also one value from x and y is given then for finding the other value, We simply see the line where x = -2 is graphed and then we will see what is the value of y there.
This is confusing any help ,, thank youu
Answers
2: 63
Thank me later
Answer:
75˚
Step-by-step explanation
58+47=105
Triangle is 180˚
180-105=75
x=75
HELP! 10 POINTS!! :((
Answers
Answer below.
1. 2
2. 17
3. 16
4. 4
5. 2
6. 8
7. 8
8. 10
Select the graph that would represent the best presentation of the solution set.
|2x - 6| > 10
Answers
Answer:
the third one looks right
Determine 3 solutions to the inequality 5 > x. Show these solutions on the number line below.
Answers
Answer:
Any number less than 5 is the right answer!
Step-by-step explanation:
There's not really much to it, I hope this helped!
A contractor purchases ceramic tile to remodel a kitchen. Each tile costs $4, and the adhesive and grouting material costs $17.82. If the contractor is charged a total of $581.82, how many ceramic tiles did the contractor purchase?
Answers
Answer:
The answer is 145 ceramic tiles
Step-by-step explanation:
$4 Divided by $581.82 = 145.455
can somebody help me please
Answers
difference: first is a positive graph and the second is negative
