how many terms of the series 1+4+7........will add up to 425?

Answers

Answer 1

Answer:

17 terms

Step-by-step explanation:

Let the number of terms be n which will add up to 425.

So, 425=(n/2)*(2+(n-1)*3). 850=n*(3n-1), n=17 or - 50/3 but n can't be negative, so the answer is n=17


Related Questions

What is the equation of a parabola that has a vertical axis passes through the point (-1,3) and has its vertex (3,2)

Answers

Answer:

Standard Form: y = 0.0625x²-0.375x+2.5625    

Graphing Form: y = (1/16)(x-3)²+2    

Step-by-step explanation:

f (8^9)p = 8^18, what is the value of p? (4 points)

Answers

Answer:

p=8^9

Step-by-step explanation:

Evaluate the expression

Answers

Answer:

3

Step-by-step explanation:

(5x -2y) / y

Let x = -4 and y = -4

(5*-4  - 2*-4) / -4

(-20 +8) / -4

-12/ -4

3

Hey there!

5x - 2y / y

= 5(-4) - 2(-4) / -4

5(-4)

= -20

(2)(-4)

= -8

= -20 - (-8) / -4

= -20 + 8 / -4

-20 + 8

= -12

= -12 / -4

= 3

Therefore, your answer is: 3

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

please solve this.....​

Answers

Answer:

Step-by-step explanation:

the dot means multiply

The cityscape bike path is 2 2/3 times longer than the bay view bike path. What is the length of the cityscape bike path?

Answers

The complete version of the question is attached below :

The length of Cityscape Bike Path is [tex]3 \frac{1}{9} miles[/tex]

Given that :

Cityscape Bike Path is [tex]2 \frac{2}{3}[/tex]

times longer than Bay View Bike Path

Length of Bay View Bike Path = [tex] \frac{7}{6} miles[/tex]

Hence, to compute the length of Cityscape Bike Path :

Cityscape Bike Path = [tex]2 \frac{2}{3} \times [/tex] Length of Bay View Bike Path

Therefore, length of Cityscape Bike Path =

[tex]2 \frac{2}{3} \times \frac{7}{6} [/tex]

Length of Cityscape Bike Path =

[tex] \frac{8}{3} \times \frac{7}{6} = \frac{56}{18} = 3 \frac{1}{9} miles[/tex]

Hence, the length of Cityscape Bike Path is [tex]3 \frac{1}{9} miles[/tex]

Learn more : https://brainly.com/question/12213307

Can someone help? It can be 3-5 sentences just compare and contrast them.

Answers

A line segment has two endpoints. It contains these endpoints and all the points of the line between them. You can measure the length of a segment, but not of a line. A ray is a part of a line that has one endpoint and goes on infinitely in only one direction.

I hope this helps! Brainliest would be appreciated.

line is cool segment is cool ray is cool btw the other persons answer is right

please help!
-10y= y+ 1

Answers

Answer:

y = -1/11

Step-by-step explanation:

-10y= y+ 1

-11y = 1

y = -1/11

[tex]\\ \sf\longmapsto -10y=y+1[/tex]

Take y to left

[tex]\\ \sf\longmapsto -10y-y=1[/tex]

[tex]\\ \sf\longmapsto -11y=1[/tex]

[tex]\\ \sf\longmapsto y=\dfrac{1}{-11}[/tex]

Point A(8,4) is reflected over point (6,−2) and its image is point B. What are the coordinates of point BB?

Answers

Answer:

If Point A (8,4) is reflected over point (6,−2), then that point becomes (4, -8).

Let me know if this helps!

if 4 is a root of x^2- kx+12=0 , then the value of k and the other roots are what?​

Answers

Answer:

k=7

Other root=3

Step-by-step explanation:

If x=4 is a root of the given equation, then it satisfies the given equation.

4^2-k(4)+12=0

We can solve this equation for k.

16-4k+12=0

28-4k=0

28=4k

28/4=k

7=k

So the equation is x^2-7x+12=0

Factor form is (x-3)(x-4)=0 since-3(-4)=12 and -3+-4=-7.

This implies x=3 and x=4 are roots.

Is the following number rational or irrational? Choose the appropriate reason. PA N. 1.4 7+ V5 Rational, because it is the sum of two rational numbers. Rational, because it is the sum of a rational and an irrational number. Irrational, because it is the sum of two irrational numbers Irrational, because it is the sum of a rational and an irrational number. There is not enough information to answer the question.​

Answers

Answer:

u need to give more points for thouse kind of questions

Step-by-step explanation:

Find the length of the arc.

Answers

radius=r=7inAngle=135°

We know

Length if arc=L

[tex]\boxed{\sf L=\dfrac{\theta}{360}\times 2πr}[/tex]

[tex]\\ \sf\longmapsto L=\dfrac{135}{360}\times2π(7)[/tex]

[tex]\\ \sf\longmapsto L=\dfrac{27}{72}\times 14π[/tex]

[tex]\\ \sf\longmapsto L=\dfrac{27}{36}\times 14π[/tex]

[tex]\\ \sf\longmapsto L=\dfrac{9}{12}\times 7π[/tex]

[tex]\\ \sf\longmapsto L=\dfrac{63π}{12}[/tex]

[tex]\\ \sf\longmapsto L=\dfrac{21π}{4}in[/tex]

A rectangular box contain 782 apples. If there are 23 rows in a box, how many columns are there?

Answers

Answer:

34

Step-by-step explanation:

This is because you will have to simply divide 782 by 23.

782 / 23 =

34 :D

Can someone please help me on these 4 questions PLEASE HELP ME!!

Answers

Answer:4 ans x is -32/10

7 ans b  is 6

10 ans x is 25/7

13 ans x is 9/2

Step-by-step explanation:

8= 10x+4010x= 8-4010x= -32x= -32÷10x= -3.2

2b+3b-10= 205b= 20+105b= 30b= 30÷5b= 6

4(3x-1)= 24+5x12x-4= 24+5x12x-5x= 24+46x= 28x= 28÷6x= 4.66

2x+17-9+x= 5x-12x+x-5x= -1-17+93x-5x= -18+92x= -9x= -9÷2x= -4.5

please mark this answer as brainlist

Please help me it’s important i will give yo u brainlest

Answers

Answer:

Hello,

Step-by-step explanation:

1)

[tex]g(x)=4*\dfrac{x-3}{5} \\g(-7)=4*\dfrac{-7-3}{5} =4*\dfrac{-10}{5} =4*(-2)=-8\\\\[/tex]

2)

[tex]f(a)=-|-3a-1|\\f(-1)=-|-3*(-1)-1|=-|3-1|=-|2|=-2\\\\[/tex]

3)

[tex]f(a)=4^{a+2}+3\\f(1)=4^{1+2}+3=4^3+3=64+3=67\\\\[/tex]

4)

[tex]p(t)=\dfrac{5\sqrt{2t+8} }{4} +3\\p(4)=\dfrac{5\sqrt{2*4+8} }{4} +3\\=\dfrac{5\sqrt{16} }{4} +3\\=\dfrac{5*4 }{4} +3\\=5+3\\=8\\[/tex]

In a research study, students were randomly assigned to three different groups. Group 1 drank no cups of coffee, group 2 consumed 1 cup of coffee, and group 3 consumed 2 cups of coffee. Following this, all the participants took an IQ test. What is the independent variable

Answers

Answer:

The score that they got on the IQ test is the dependent variable

Step-by-step explanation:

3. Create and write a real-world situation that could be represented by the equation below:
5x + 15 = 45

Answers

Answer:

You ordered 5 tickets for a show on line...

The cost was $5 a ticket Plus a one time ordering fee of $15.

you total cost was $45 ....

Solving for x will determine the cost of one ticket

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

a taxi charges $5 a mile plus $15 "pull fee" ...

you ride cost a total of $45 ... x is the number of miles that you got driven

Step-by-step explanation:

You rent a car for a down payment of $15 and $5 is charged per mile driven. The total charge is therefore, $45. In essence, x is the no. of miles driven.

According to the question;

We are required to create a real-world problem that could be represented by the equation; 5x + 15 = 45.

In essence, x is the no. of miles driven in this scenario.

By solving for x in 5x + 15 = 45, we may determine the no. of miles driven.

Read more:

https://brainly.com/question/2319353


Find the FACTORS of
36

Answers

Answer:

factors of 36 are 1,2,3,4,6,9,12,18,and 36

need answer please
giving out brainiest for ALL MY QUESTIONS!!
correct answers only

Answers

Answer:

True

Step-by-step explanation:

integers like 5 or 4 can be put over one to be a fraction.

For example: 5/1 or 4/1

Answer:true

Step-by-step explanation:

they can

eg 1/1, 7/1

PLS HELP ON THIS QUESTION I WILL MARK YOU BRAINLIEST IF YOU KNOW THE ANSWER!!

Answers

Answer:

First we need the formula to solving a cone :

[tex]V=\pi r^2\frac{h}{3}[/tex]

We substitute pi as 3.14!

62.8 is the answer

Why?

3.14 x 5 squared x 12/3 is 62.8

Therefore the answer is 62.8

UDISJKDFJSFJDGLFS HELP

Answers

Answer:

I think E

Step-by-step explanation:

You know the shortest building is 25 m.

to find the rest, use trigo so Tan(20)=opposite/adjacent.

Adjacent is 50. Do the math and add the answer with 25.

Answer:

The answer would be E. 43.2

According to TOA, The opposite side is tan(20) x adjacent side( 50m)

the answer is 18.2( to 1 dp). Add the height of the second building together with 18.2 and you will get ur answer. HOpe this helps:)

Please help! Solve each equation with its indicated method. Please show your work and upload a picture. Thank you!

1. Solve using substitution
2x + 3y = 24
-3x - 5y = 15

2. Solve using elimination
x - y = 3
2x + 4y = 9

Answers

Refer to the attachment

Find the measure of the missing angles.
133°


b =
C=

Answers

Answer:

<b = 133

<c = 47

Step-by-step explanation:

<b and 133 are vertical angles and vertical angles are equal

<c and 133 form a straight line so they add to 180

<c+133 = 180

<c = 180-133

<c =47

Factor the following expression completely. 16x^5-x^3

Answers

Answer:

x³ (4x + 1)(4x - 1)

Step-by-step explanation:

Answer:

x^3 (4x-1)(4x+1)

Step-by-step explanation:

16x^5-x^3

Factor out x^3

16* x^2*x^3 - x^3

x^3(16x^2 -1)

The term inside the parentheses is the difference of squares

a^2 - b^2 = (a-b)(a+b)

x^3 ( (4x)^2 -1^2)

x^3 (4x-1)(4x+1)

Match the stem and leaf plot
to the correct set of data.

Answers

Option D is your answer

what is the one solution for the linear equations y=3x-5 and y=-3x+7

Answers

Answer:

y=1 and x=2

Step-by-step explanation:

Add the two linear equation and you will have 2y=2, y=1. Plugging this in any equation, we have x=2

Answer:

The solution is (2,1)

Step-by-step explanation:

Set the two equations equal

y=3x-5 and y=-3x+7

3x-5 = -3x+7

Add 3x to each side

3x-5+3x = -3x+7+3x

6x-5 = 7

Add 5 to each side

6x-5+5 = 7+5

6x = 12

Divide by 6

6x/6 = 12/6

x=2

Now find y

y =3x-5

y=3(2)-5

y = 6-5

y=1

The solution is (2,1)

. If a = 120°, find the measure of angles b, c and d.
Explain your reasoning.

Answers

∡b is a vertical angle to ∡a and therefore a twin, and we know that ∡a = 120°, thus since ∡b = ∡a, ∡b = 120° as well.

a full circle has a total of 360°, ∡d and ∡c are vertical angles, namely two angles across from each other at a junction, and therefore ∡d = ∡c.

∡a + ∡b is 120° + 120° thus 240°, since a circle has a total of 360°, 360 - 240 = 120, so the other two angles pick up that slack and divide it among each other evenly, 120/2 = 60, so ∡d = ∡c = 60°.

The sum of three prime numbers is 22. What is the largest possible product of these numbers?

Answers

Step-by-step explanation:

a+b+c=22

abc=?

2+3+17=22

2×3×17=102

Answer:

The numbers are 2, 7 and 13

Step-by-step explanation:

2+7+13 = 22

2X7X13 = 182

For what value of x is the rational expression below equal to zero?
x-4/(x+5)(x-1)
O A. -5
O B. 4
C. -4
O D. 1

Answers

Answer:

x=4

Step-by-step explanation:

(x-4)/(x+5)(x-1)

For this to be equal to zero, the numerator must be zero and the denominator not equal to zero

x-4 = 0

x=4

Any help? Khan Academy question

Answers

Answer:

1.6<x<9.6

Step-by-step explanation:

Triangle says the sum of any 2 sides is bigger than the third.

Assume a,b,c are side measurements of a triangle.

So if you know two sides a and b then the third number, c, is such that |b-a|<c<a+b.

So just add the given numbers and find the positive difference.

5.6+4=9.6

5.6-4=1.6

Can someone answer this pls

Answers

Answer:

Domain is [tex]x \ge d[/tex]

You'll check the box labeled "x", the box labeled [tex]\ge[/tex] and the box labeled "d". So you'll have 3 boxes checked.

=======================================================

Explanation:

We cannot have a negative number under the square root, and get some real number output. For example, the result of [tex]\sqrt{-4}[/tex] isn't a real number.

That means we need to have the "x-d" under the square root to be 0 or larger.

[tex]x-d \ge 0\\\\x-d+d \ge 0+d\\\\x \ge d[/tex]

The domain is [tex]x \ge d[/tex] telling us that x = d is the smallest x value we can plug in

So that's why we check off the box labeled "x", the box labeled [tex]\ge[/tex] and the box labeled "d" as shown below.

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