Express the given sums using sigma notation.
2/5+4/9+6/13+....+20/41​

Answers

Answer 1

Answer:

олвововововлвлвлвлвлвлввлвлв

Answer 2

Answer:

[tex]\begin{array}{ccc}&10&&&\Sigma&\frac{2n}{4n + 1}&&n=1&\end{array}[/tex]


Related Questions

The graph of f^ prime is shown. Find and sketch the graph of f given that fis continuous and f(0) = 1 .

(#72 in the pic)

Answers

9514 1404 393

Answer:

  see attached (blue line)

Step-by-step explanation:

The slope in the first interval (0 to 2) will be -1, down from the y-intercept of 1.

The slope in the second interval will be 2. After that, the slope is zero, so the graph is a horizontal line.

The blue line in the attached is the graph of f(x).

Question 4
Which equation has a graph perpendicular to the graph 3y = 2x - 9?

3x + 2y = 7
2x + 3y = 4
y = 2/3x - 1
y = 2x + 5

Answers

Answer:

slope of the line 3y = 2x - 9 , m = 2/3

therefore slope of line perpendicular to given line

m2 = -1/m1 = -3/2

then the general equation of line with slope -3/2 is given by

y = -3/2 ( x ) + c

where c = y-intercept which can be found when more data is provided

Name an equivalent ratio for with a denominator of 8.

Please select the best answer from the choices provided

A: 4/8
B: 1/8
C: 5/8
D: 3/8​

Answers

Answer:

(A)

Step-by-step explanation:

4+4=8,4/8 is an equalivent ratio. So the best answer would be A!

Hope this helps:)!

express 25 as a power with base 5​

Answers

Answer: 5

Step-by-step explanation:

Answer:

5^2 or 5 to the power of 2

Step-by-step explanation:

5x5=25

Determine the next three terms in the following sequence: -1, 1/2, - 1/4, 1/8​

Answers

Answer:

-1/16, 1/32, and -1/64.

Step-by-step explanation:

Basically, all you have to do is find the pattern in the sequence in front, which in this case is division by -2. Hence, you can apply this onwards to get (1/8) / -2 = -1/16, (-1/16) / -2 = 1/32, and (1/32) / -2 = -1/64.

Hope this helped! Merry Christmas!

-3(x + 6) idk what the answer is. ​

Answers

Answer:

-3x-18

Step-by-step explanation:

-3(x+6)

-3x-3x x 6

-3x-18

Do subtraction with monetory values.

$49.68 -$7.89=?

Answers

Answer:

U have $41.79 left i hope it is helpful have a nice day and merry Christmas

if you have $49.68 to spend and buy a $7.89 gingerbread set, you'll have 1 amazing gingerbread house.

calculate the slope of the line ​

Answers

Answer:

-5/4 or -1.25

Step-by-step explanation:

the points are (-6, -3) and (-2, -8)

the formula for slope is y2-y1/x2-x1

y2 is -8

y1 is -3

x2 is -2

x1 is -6

(-8+3)/(-2+6)

(-5)/(4)

-5/4 or -1.25

ANYBODY KNOW THIS????

Answers

Answer:

The length of BD equals 7.4

Step-by-step explanation:

We can use the pythagorean theorem to solve this.

This is the pythagorean theorem:

[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]

Let's solve.

[tex] {a}^{2} + {b}^{2} = {c}^{2} \\ {a}^{2} + {3}^{2} = {8}^{2} \\ {a}^{2} + {9} = {64} \\ \frac{ \: \: \: \: \: \: - 9 = - 9}{ {a}^{2} = \sqrt{55} } \\ a = 7.4[/tex]

Therefore, The length of BD = 7.4.

Chris bought a pizza that was cut into 8 slices. He saw olives on 2 of the slices. If he chooses a slice at random, what is the probability that he gets a slice without olives?

Answers

The probability is 1/4 or 25%

Answer:

16 slices of pizza without 2 olives

PLEASE HELP ME !!!! I need help

Answers

Answer:

69300 is the total amount without being rounded but after being rounded the answer is 5600

Step-by-step explanation:

You put it in the other comment section for free points

Help please giving brainliest!!

Answers

Answer:

Step-by-step explanation:

-1 = -3x + 5

add 3x on both sides

3x - 1 = 5

add 1 on both sides

3x = 6

divide both sides by 3 to get x by itself

x = 2

Translate the product of 8 and the quotient of 6 and x into an algebraic expression​

Answers

Answer:

3 x

x + y

Step-by-step explanation:

(think about it with a horizontal line between the two numbers)

When using fractions and whole numbers turn the whole numbers into fractions like ---> 3/1

and if their like 3 5/6 (for example) you would multiply the denominator by the whole number ---> 3*6=18 then add what's on the numerator with it. so 18+5=23 which would make it 23/6

Just some tips for making it easier!

Hope it helps! :)

The user manual for Layla’s phone notes that the device can be damaged when operated at temperatures below -20°C and above 45°C. Layla wants to know what these ranges are in degrees Fahrenheit and writes these inequalities to rewrite the relationship where F is degrees Fahrenheit.

5/9 (f - 32) 45

Which statement best describes the temperature ranges Layla should avoid while using her phone?

A.Layla should avoid using her phone in temperatures below -4°F and above 113°F.

B.Layla should avoid using her phone in temperatures above 21°F and below 57°F.

C.Layla should avoid using her phone in temperatures below 21°F and above 57°F.

D.Layla should avoid using her phone in temperatures above -4°F and below 113°F.

Answers

Layla should avoid using her phone in temperatures below -4°F

and above 113°F.

-34 > -10 + 4x
Help ASAP

Answers

Step-by-step explanation:

-34 > -10 + 4x

-24 > 4x

x < -6.

Answer:

Hope it will help u plz brain-list the answer

Step-by-step explanation:

-34 > -10 + 4x

by transitive property of in-equality we get,

-10+4x<-34

4x<-34+10           ( adding 10 to both sides

4x<-24

x<-24/4                 ( dividing 4 to both sides

x<-6  Ans

Which of the following is true about the expression below?

9 * 1/4

O It represents the product of two rational numbers and is equivalent to a rational number.
O It represents the product of two rational numbers and is equivalent to an irrational number
O It represents the product of a rational and an irrational number and is equivalent to a rational number
O It represents the product of a rational and an irrational number and is equivalent to an irrational number​

Answers

Answer:

The first one

Explanation:

9 and 1/4 are both rational numbers (which are numbers that can be represented in a fraction; 9 can be represented as 9/1)
And since it equals to 9/4 (or 2 1/4) the product is also a rational number.

Identify the pattern for the following sequence. Find the next three terms in the sequence.

-15, -11, -7, -3 ____, _____, _____,...

A: Subtract 4; -7, -11, -15
B: Add 4; 2, 6, 10
C: Subtract 4; 1, 5, 9
D: Add 4; 1, 5, 9​

Answers

Answer:

D: Add 4; 1, 5, 9​

Step-by-step explanation:

Firstly, we can look at the preceding sequence: -15, -11, -7, and -3. It's pretty much impossible to be subtract 4, since -15 - 4 = -19, and it only goes downhill from there, deviating from the original sequence. Hence, the front sequence should be following the pattern of add 4.

Now, to decide between B and D, all you have to do is add 4 to the last term of the sequence to continue it. In this case, that would be -3 + 4 = 4 - 3 = 1. Hence, we can instantly identify the correct option is D: Add 4; 1, 5, 9​.

Hope this helped!

Answer:

D is the answer: 4, 1, 5, 9

Step-by-step explanation:

Question 5(Multiple Choice Worth 4 points)
PLZZ help!
on a coordinate grid, both point (1, 2) and point (−3, −3) are reflected across the y-axis. What are the coordinates of the reflected points?

(−1, 2) and (3, −3)
(−1, −2) and (3, 3)
(1, −2) and (−3, 3)
(1, 2) and (3, 3)

Answers

Answer:

The first option (a) is correct

Step-by-step explanation:

VY=27. VZ = 18, and Ww=8, find WX
Х
W
Z

Answers

Answer:

D. 4

Step-by-step explanation:

∆VWZ ~ ∆VXY, therefore:

[tex] \frac{VW}{VX} = \frac{VZ}{VY} [/tex]

VW = 8

VX = 8 + WX

VZ = 18

VY = 27

Plug in the values

[tex] \frac{8}{8 + WX} = \frac{18}{27} [/tex]

Cross multiply

[tex] 8 * 27 = (8 + WX)*18 [/tex]

[tex] 216 = 144 + 18WX [/tex]

Subtract 144 from each side

[tex] 72 = 18WX [/tex]

Divide both sides by 18

[tex] 4 = WX [/tex]

WX = 4

Select all the expressions that could be used to find the area of a running track
that is 1,243 feet long and 8 feet wide.
A. 1,243 + 8
B. 8 × 1,243
C. 8 + (1,000 + 200 + 40 + 3)
D. 8 × (1,000 + 200 + 40 + 3)
E. (8 × 1,000) + (8 × 200) + (8 × 40) + (8 × 3)

Answers

Answer: B,D,E

Step-by-step explanation:

Everyone that is multiplying 1243 by 8

I am having trouble with these two questions . 1) -2+x= -x+2
2) 2+3x=x+7

Answers

Answer:

1)x=2. 2)x=5/2

Step-by-step explanation:

Steps in pic below

tor. Factor each expression. 2x + 8​

Answers

Answer:

The factorized form of 2x + 8 is 2(x+4).

Step-by-step explanation:

Given the expression

2x + 8

Let us factorize the expression

2x + 8

Rewrite 8 as 2·4

[tex]2x\:+\:8=2x+2\cdot \:\:4[/tex]

Factor out common term 2

           = 2(x+4)

Therefore, factorized form of 2x + 8 is 2(x+4).

Salary paid Rs 10000and still due Rs 2000 ​

Answers

Answer:

ooh too bad happened sorry

Find f(-3) of the function below
F(x)=2x^3-9x^2-5x

Answers

Answer:

your answer is -120

Step-By-Step Explanation:

2(-3)^3 - 9(-3)^2 -5(-3)

2 (-27) - 9(9) +15

-54 -81 +15

-135 +15

-120

i hope this helps :)

Answer: -120

Hope this helps :)

Angie divides the polynomial function f(x)=x3+3x2−7x−21 by (x + 3). What can she conclude from the fact that the remainder is equal to 0?

Answers

Answer:

See below

Step-by-step explanation:

Given function

f(x)=x³ + 3x²- 7x - 21

We can find its factors:

x³ + 3x² - 7x - 21 =x²(x + 3) - 7(x + 3) =(x² - 7)(x + 3)

We can conclude that the given polynomial function is fully divisible by (x + 3) and the quotient is (x² - 7)

Also one of zeros of the function is -3

Find the slope of the line passing through the points (9, - 4) an
(5,6)

Answers

Answer:

-5/2

Step-by-step explanation:

(9,-4) and (5,6)

Slope = y2-y1/x2-x1

(6-(-4)/5-9

10/-4

-5/2

Hope this helps!

Ricky spends $103. 19 in additional interest and charges on monthly payments as the result of a prior bankruptcy. If Ricky had been able to save this money for one year and then put it into a savings account earning 3.1% simple interest, how much money could he have in savings after two more years?
a $1,238.28
b. $1,276.67
c. $1,315.06
d. $2,476.56

Answers

Answer:

C. 1,315.06

Step-by-step explanation:

................

What are the measures of center?

Answers

Answer:

Mean, mode,median and mid-point seem to be the basic measurements of center. 

Step-by-step explanation:

A central propensity measure (center measure) is a measure that seeks to characterize a data set by defining the data set's central location.

For the following equation, complete the given ordered pairs.



3x + y = 10 (__, 1), (2, __)





A.
(10, 1), (2, 12)

B.
(0, 1), (2, 3)

C.
(3, 1), (2, 4)

D.
(2, 1), (2, 5)

PLEASE HELP ME!!!!!!!!

Answers

Answer:

C. (3,1) (2,4)

see attached

Kathleen and Antonio hung out at the mall on Saturday. They spent 1 hour and 15 minutes shopping for clothes and 1 hour and 30 minutes at the food court. Then they spent 2 hours at the video arcade before heading home. If it was 11:00 A.M. when Kathleen and Antonio started shopping for clothes, what time was it when they left the mall?

Please help me fast!!!!!

Answers

Answer and Step-by-step explanation:

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

First, we should list all the information that is given to us.

Started at: 11:00 AM

Time spent shopping: 1 hour and 15 minutes

The spent in food court: 1 hour and 30 minutes

Time spent in video arcade: 2 hours

Now, all we have to do is add the times.

11:00 AM + 1 hour and 15 minutes = 12:15 PM

12:15 PM + 1 hour and 30 minutes = 1:45 PM

1:45 PM + 2 hours = 3:45 PM

So, Kathleen and Antonio left the mall at 3:45 pm.

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

#teamtrees #WAP (Water And Plant)

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