Help Please! I will mark brainliest!

Answer:

B. -1/3

Step-by-step explanation:

replace x with 34 and solve it.

Given:

First term of a geometric series = a

Common ratio of the geometric series = [tex]\sqrt{3}[/tex]

To prove:

[tex]S_{10}=121a(\sqrt{3}+1)[/tex]

Solution:

The sum of first n terms of geometric series is

[tex]S_n=\dfrac{a(r^n-1)}{r-1}[/tex]

Where, a is the first term and r is the common ratio.

Putting n=10 and [tex]r=\sqrt{3}[/tex] in the above formula, to get the sum of 10 terms.

[tex]S_{10}=\dfrac{a((\sqrt{3})^{10}-1)}{\sqrt{3}-1}[/tex]

[tex]S_{10}=\dfrac{a(243-1)}{\sqrt{3}-1}[/tex]

[tex]S_{10}=\dfrac{242a}{\sqrt{3}-1}[/tex]

Rationalizing the denominator, we get

[tex]S_{10}=\dfrac{242a}{\sqrt{3}-1}\times \dfrac{\sqrt{3}+1}{\sqrt{3}+1}[/tex]

[tex]S_{10}=\dfrac{242a(\sqrt{3}+1)}{(\sqrt{3})^2-1^2}[/tex]

[tex]S_{10}=\dfrac{242a(\sqrt{3}+1)}{3-1}[/tex]

[tex]S_{10}=\dfrac{242a(\sqrt{3}+1)}{2}[/tex]

[tex]S_{10}=121a(\sqrt{3}+1)[/tex]

Hence proved.

Answer: 9

Step-by-step explanation:

Answer:

1) 121 students

2) $330

Step-by-step explanation:

1) 44 percent of 275 is 0.44 * 275 = 121 students

2) 20 percent of 275 is 0.2 * 275 = 55. 275 + 55 = $330

Answer:

1

Step-by-step explanation:

I did it in the calculator

Answer:

-7/2

Step-by-step explanation:

Answer:

a triangle, I'm guessing 20ft and 24 ft on the outsides,

would be:

Equation to get the area of a triangle: (A*B)/2

(20*24)/2=Area

20*24= 480

480/2= 240

area= 240

Answer: 240 ft²

Step-by-step explanation:

1. Multiply the base and the height.

2. Divide the product you get by 2.

=> 20 * 24 = 480

=> 480 / 2 = 240

Answer:

ahhhh so prettyyyyy

Step-by-step explanation:

Answer:

4x

3x

Step-by-step explanation:

1.)

we see that when x=0 y=0 which means that our equation

y=mx+b

b=0

(this is shown if we plug in 0 for x)

0= 0x+b

0=b

Next, we notice that each time it's increasing by four which means our slope is just 4

the answer is 4x

The y intercept (or b) is the same deal as question one

we can also see that when x=1 y=3 which means that

3=x+0

3=x

our slope is 3

Answer:

y=5200(0.15)^t

Step-by-step explanation:

this is the answer y=5200(0.15)^t

Answer:

I plot the points to a graph but I don't have access to a 14 I only have a 10 grid graph but I was able to plot the other points this is wht I got

Step-by-step explanation:

let me know if u can't see it..... I would say it's nonlinear

Answer:

572.555

Step-by-step explanation:

A=Πr²

A=3.14×13.5²

A=572.555

Answer:

Step-by-step explanation:

a₂₁ = -10 + 5(21) = 95

Answer:

Step-by-step explanation:

(10 - 4)/(4 -1)= 6/3= 2

y - 4 = 2(x - 1)

y - 4 = 2x - 2

y = 2x + 2

Answer:

30

Step-by-step explanation:

This is a 30 60 90 triangle. Since it tells us it a right triangle (which means it has a 90 degree angle). Also it tells us that there is a 30 degree. Using the triangle interior theorem, the third angle is a 60 degree

angle

The longest side or hypotenuse is twice the length of the shortest side. So the hypotunes is 30.

Answer: 25

Step-by-step explanation:

If 1 inch equal to 5 feet in this equation than. 5 inches=25 because 5 inches and each inch is 5 feet so 5x5=25

hope this helps

Answer:

Aqua para chica gamer? te sirve?

Answer:

avg speed= total distance / total time

total time= 0.5+1.5= 2 h

d1= v1 t1=1.5×3=4.5

d2=v2t2

v2=x...let

d2=0.5x

atq....4.5+0.5x/2= 4

4.5+0.5x=8

x= v2=7mph

Answer:

7 mph

Step-by-step explanation:

Step-by-step explanation:

y=mx+b

m is the slope

b is the y- intercept

y = 9x -2

slope = 9

y intercept = -2

Answer:

The slope is –2, and the y-intercept is 9

Step-by-step explanation:

Answer:

okay bro, but I need some time

Answer:

72

Step-by-step explanation:

.75x96=72

Answer:

Your answer......6480 Rs

WANT MORE THEN FOLLOW ME, LIKE & MARK MY ANSWER AS BRAINLIST ANSWER

Answer:

perimeter goes with the one that has 5x^2

i dont know the second im sorry

Step-by-step explanation:

Answer:

Step-by-step explanation:

If x can be any number, then p = 22.

If x = 0 or 1, then p can be any number.

Answer:

13 each

Step-by-step explanation:

40/3= 13.3

9514 1404 393

Answer:

  ML = 7.5

Step-by-step explanation:

The parallel lines divide the transversals proportionally.

  ML/LK = JH/HG

  ML/10 = 6/8

  ML = 10(6/8) = 7.5

The length of ML is 7.5.

__

We don't need to solve for x. If ML = x-2, then x=9.5.

Answer:

area of circle=πr²=3.14×5²=78.5unit²

Answer:

4 pitches

Step-by-step explanation:

if a cylinder with height 9 inches and radius r is filled with water, it can fill a certain pitcher. how many of these pitchers can a cylinder with height 9 inches and radius 2r fill? explain how you know.

Solution:

The volume of a cylinder is given by:

V = πr²h;

where V is the volume, r is the radius of the cylinder and h is the height of the cylinder.

A cylinder with height 9 inches and radius r can fill a certain pitcher. Therefore the volume of the cylinder is:

V = πr²h = πr²(9) = 9πr²

V = volume of pitcher = volume of cylinder with radius r = 9πr²

For a cylinder with height 9 inches and radius 2r its volume is:

V2 = πr²h = π(2r)²(9) = 36πr²

Therefore, the number of pitchers a cylinder with height 9 inches and radius 2r can fill is:

number of pitches = 36πr² / 9πr² = 4

Therefore a cylinder with height 9 inches and radius 2r can fill 4 pitches.

Answer:

After calculating, your answer should be:

(0.80-0.5 m/s)/(4.0 s) = (0.075 m)/s^2

I hope this helps you! (This was for the 100 point brainly thing you said you wiuld give me 100 points?)

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on 4anime dot to

Answer:

Meat

Step-by-step explanation:

The only thing he can practically think about is Meat, Pirate King, and his pirate crew.

Answer:

5.75 days

Step-by-step explanation:

Given data

let the number of days be x and the number and the number of miles be y

so that the cost of the rental will be

c= 38.38x+ 0.14y---------1

we are told that the amount at hand is $270

hence

270=38.38x+ 0.14*(350)

solve for x

270= 38.38x+49

270-49= 38.38x

221= 38.38x

divide both sides by 38.38

x= 221/38.38

x= 5.75 days

Hence the  number of days is 5.75 days