Find the nth term of this sequence -2 3 8 13 18

QUESTION POSTED AT 20/02/2020 - 11:14 PM

Related questions

F(x)= x^2-1 .Find the graph of f(2/3x)

Draw graph of f(x) = x^2-1
change scale on x-axis by 3/2
( 1 -> 3/2 , 2-> 3, 3->9/2, ... )

ANSWERED AT 31/03/2020 - 10:46 AM


QUESTION POSTED AT 31/03/2020 - 10:46 AM

Libby wants to measure the length of a pond. She measured 13 yd from point X to point Z and 12 yd from point Y to point Z. What is the length of the pond?

Answer:The answer is 5yds mate  i did it on USAtestprep

Step-by-step explanation:

would u please mark me brainliest answer mates im doing it for a yt video ps im lazarbeam.if u saw this you are winning 2000 in  my video that will drop tommorow

ANSWERED AT 31/03/2020 - 10:46 AM


QUESTION POSTED AT 31/03/2020 - 10:46 AM

Find the volume V of the cone

V=πr^2(h/3)
V≈804.25

Since the height is 12, and radius is 8, take the radius and square it. 8 squared equals 64. Now, take the height (12) and divide that by three. This equals 4. 

So Volume = Pi times 64 times 4. The answer should be 804.247. Once rounded, you should get 804.25

ANSWERED AT 31/03/2020 - 10:46 AM


QUESTION POSTED AT 31/03/2020 - 10:46 AM

Let the sequence {an} be defined so that a1 = 1 and each succeeding term is found by multiplying the one before it by 4. Find the formula representing an, the nth term of the sequence.

A₁ = 1 = 4⁰

a₂ = 4 =4¹

a₃ =4 x 4=4²

a₄ =4 x 4² =4³
...................
...................

a(n) = 4⁽ⁿ⁻¹⁾

ANSWERED AT 31/03/2020 - 10:44 AM


QUESTION POSTED AT 31/03/2020 - 10:44 AM

What are the first, fourth and eighth terms for A(n)=-2*2^n-1

The first term is -2. The fourth term is -16. And the last term is -256.
To find them, lets say the first term, replace n with 1. You can use this idea to find out the rest (which I've already done, but just to explain to you.).

ANSWERED AT 31/03/2020 - 10:44 AM


QUESTION POSTED AT 31/03/2020 - 10:44 AM

Yesterday, Jim had b baseball cards. Today, he gave 13 away. Using b, write an expression for the number of cards Jim has left.

Jim started with b baseball cards and gave 13 away. So, that means we take away from his starting amount or b.

So, b - 13 is the expression you are looking for.

ANSWERED AT 31/03/2020 - 10:43 AM


QUESTION POSTED AT 31/03/2020 - 10:43 AM

Solve formula for g. r/g -2 = (-8j)/g

Common denominator:

(r-2g)/g =-8j/g==> r-2g=-8j

Solve for j, ==> -8j = r-2g & j=(r-g)/(-8) or j= (g-r)/8

ANSWERED AT 31/03/2020 - 10:42 AM


QUESTION POSTED AT 31/03/2020 - 10:42 AM

Find the first, fourth and eighth terms for a(n)=-3*2^n-1 please help!

1 is -3        4 is -24     8 is -384    I think that's right

ANSWERED AT 31/03/2020 - 10:42 AM


QUESTION POSTED AT 31/03/2020 - 10:42 AM

What is the result when 8x + 3 is subtracted from -2x + 5?

First you must find x in order to solve this question, unless you do not need to find out X.

ANSWERED AT 31/03/2020 - 10:41 AM


QUESTION POSTED AT 31/03/2020 - 10:41 AM

Explain how u find the area of the base of a pyramid

The base of the pyramid is a square. Area of a square
A= l x w

ANSWERED AT 31/03/2020 - 10:40 AM


QUESTION POSTED AT 31/03/2020 - 10:40 AM

Find the area of the shaded portion of the diagram (use 3.14 for p).A)220.16 square yardsB)6.88 square yardsC)55.04 square yardsD)13.76 square yards

Get the area of the circle. Use this formula: 
Area =  \pi * radius^2

We know the radius is 4 yards.

Area = 3.14 * 4^2
Area = 3.14 * 16
Area = 50.24

Now for the square. Double the radius to get the diameter to get the length of the side.

4 * 2 = 8

Formula for finding the area of a square is
Area = side^2

Area = 8^2
Area = 64

And because we only want to shaded portion, we will subtract the area of the circle from the square.

64 - 50.24 = 13.76

So, 
D) 13.76 square yards is the answer to this question.

ANSWERED AT 31/03/2020 - 10:38 AM


QUESTION POSTED AT 31/03/2020 - 10:38 AM

Can u help me find the prime number factors

8
4 2
2 2. The spaces mean multiply symbols

ANSWERED AT 31/03/2020 - 10:37 AM


QUESTION POSTED AT 31/03/2020 - 10:37 AM

I need help finding the other arc in order to solve for x

Hol up this seems rly hard Ima get back to uu

ANSWERED AT 30/03/2020 - 01:37 AM


QUESTION POSTED AT 30/03/2020 - 01:37 AM

A laundry basket contains 18 blue socks and 24 black socks. What is the probability of randomly picking 2 black socks, without replacement, from the basket?

P(black socks): 24/42 or 12/21
P(black socks without replacing): 23/41. As a result, the probability of randomly picking 2 black socks, without replacement, from the basket is 12/21×23/41=276/861 or 32%. Hope it help!

ANSWERED AT 30/03/2020 - 01:33 AM


QUESTION POSTED AT 30/03/2020 - 01:33 AM

Consider the vector v=(-7,8). What is the angle between v=(-7,8) and the positive x-axis? Part 1: Use the formula v1 x v2=|v1||v2|cos theta to find the cosine of the angle between the two vectors (-7,8) and (1,0).

(1) To find the angle between v and positive x-axis, we first determine the angle formed by v and the negative x-axis. Since v = (-7,8), its vertical measure y is 8 units and horizontal measure x is 7 units.

arctan(8/7) = 48.81°
Solving for angle between v and positive x-axis:
180° - 48.81° = 131.19°

(2) v1 x v2=|v1||v2|cosθ
Calculating for the dot product of the vector:
v1 x v2 = -7*1 + 8*0 = -7
Calculating vector magnitude:
|v1| = √(-7²+8²) = √113
|v2| = √(1²+0²) =1

cosθ = (v1 x v2) /|v1||v2| = -7/(√113 *1) = -0.659

ANSWERED AT 30/03/2020 - 01:28 AM


QUESTION POSTED AT 30/03/2020 - 01:28 AM

The center of a circle is at (−3, 1) and its radius is 9. What is the equation of the circle? (x−3)2+(y+1)2=81 (x+3)2+(y−1)2=18 (x+3)2+(y−1)2=81 (x−3)2+(y+1)2=18

Answer:

Sorry but the correct answer is (x+3)2+(y−1)2=81

Step-by-step explanation:

Because the radius squared is the answer of the equation

ANSWERED AT 29/03/2020 - 11:16 PM


QUESTION POSTED AT 29/03/2020 - 11:16 PM

Help me start finding the angle measures

A=60
B=30
C=60
D=120
E=60
F=60

ANSWERED AT 29/03/2020 - 06:35 PM


QUESTION POSTED AT 29/03/2020 - 06:35 PM

Find the area and peri19.6 ft13 ftA

The area is 38 because whenever you have to find the area in an equation you always add up the total sides. The shape is a rectangle and the only numbers they give is 6 and 13 obviously the sides are equal so the opposite side of 13 is 13 and the opposite side of 6 is 6 because they're both a certain length. In total you add up all the sides 13 plus 13 is 26, 6 plus 6 is 12 , 26 plus 12 is 38

The perimeter is 78 because they only give you two number so whenever you do a perimeter in an equation you always have to remember to multiply. 13 multiplied by 6 is 78. Hope this helped ( :

ANSWERED AT 29/03/2020 - 06:34 PM


QUESTION POSTED AT 29/03/2020 - 06:34 PM

Box and whisker plot how do you find the percentage of students above an 80%

What do you mean? Please message me the question and I will gladly help

ANSWERED AT 29/03/2020 - 06:34 PM


QUESTION POSTED AT 29/03/2020 - 06:34 PM

40 + 20 + 10 + … ; n = 10 Find the sum of each finite geometric series.

I've attached a picture below of the formula for a finite geometric sequence. It includes an infinite geometric sequence formula for your reference, too.

a_1 = 40
r(ratio)= \frac{1}{2}
n=10

Plug in the values. 

S_{10}=40*( \frac{1- \frac{1}{2}^{10} }{1- \frac{1}{2} } )
S_{10}=40*( \frac{1- \frac{1}{1024} }{\frac{1}{2} })
S_{10}=40*( \frac{\frac{1023}{1024} }{\frac{1}{2} })
S_{10}=40*1.998046875
 S_{10} = 79.921875
S₁₀ ≈ 79.92

ANSWERED AT 29/03/2020 - 06:31 PM


QUESTION POSTED AT 29/03/2020 - 06:31 PM

Given the function: f(x) = 2x2 - 3x + 8, find f(-2). A) -22 B) -11 C) 11 D) 22

Answer:

the answer is D (22)


Step-by-step explanation:


ANSWERED AT 29/03/2020 - 06:31 PM


QUESTION POSTED AT 29/03/2020 - 06:31 PM

I need help to find the cost of shirts and how much I bought?

If 2 is 25 then 1 is 12.5
12.5x 9 is 112.50
and 87.50/12.50 is 7 so theres the 2 boxes

ANSWERED AT 29/03/2020 - 06:30 PM


QUESTION POSTED AT 29/03/2020 - 06:30 PM

Jonathan and Sarah purchased a beach house for $10,000,000. The home appreciates at a rate of 3% per year. The appreciation of the house is shown in the graph. The home is currently worth about $13,000,000. Jonathan and Sarah have owned the home for about ______ years. how many years

Current worth = 10,000,000 * (1.03)^years
We must determine the years when current worth = 13,000,000
13,000,000 / 10,000,000 = 1.03^years
1.3 = 1.03^years
Taking logs of both sides:
log (1.3) = years*log(1.03)
log(1.3) / log(1.03) = years
0.11394335231 / 0.012837224705 = years
years = 8.8760113598
Roughly about 8.9 years


ANSWERED AT 29/03/2020 - 06:29 PM


QUESTION POSTED AT 29/03/2020 - 06:29 PM

Find the distance between the points with coordinates (-8.6,2.9) and (8.6,2.9)

The answer i got was D-17.2 units. i used the distance formula to solve this problem

ANSWERED AT 29/03/2020 - 06:24 PM


QUESTION POSTED AT 29/03/2020 - 06:24 PM

What is the slope of the line joining (-4,-2) and (-4,2) show work

 
 \frac{2--2}{-4--4} = \frac{4}{0} or infinit
i am pretty sure i got it right

ANSWERED AT 29/03/2020 - 06:21 PM


QUESTION POSTED AT 29/03/2020 - 06:21 PM

For a circle with a radius of 6 feet, find the arc length of a central angle of 6 degrees. A. 36nft B. 3/5 pi ft C. 2/5 pi ft D. 1/5 pi ft

Arc length = angle*radius
Degrees to radians: multiply by pi/180
Arc length = (pi/180*6)*6 = 36/180*pi = pi/5.

The answer is D.

ANSWERED AT 29/03/2020 - 06:20 PM


QUESTION POSTED AT 29/03/2020 - 06:20 PM

PLEASE need help on 3 questions!! 1) What is the slope of a line parallel to the line 2x-3y=6? A) 2/3 B) 1 C) 4/3 D) 1/5 2) Which answer is in slope-intercept form for 4x-9y= -36? A) 9y=-4x-36 B) 9y=4x+36 C) y=4/9x+4 D) y= -4/9x-4 3) Which point-slope form passes through the point (-2,1) and has slope 3? A) (y-1)=3(x+2) B) (x-2)=3(y-1) C) (x+2)=3(y-1) D) (y+1)=3(x-2)

Hello : 
1)  2x-3y=6
3y =2x-6
y =(2/3)x-2.......(answer : 
A) 2/3 )
2) 
4x-9y= -36
9y =4x+36
y = 4/9x +4 .......( answer : 
C) y=4/9x+4 )
3) answer : 
C) (x+2)=3(y-1)
the slope is : 3 and passing by (-2,1)

ANSWERED AT 29/03/2020 - 06:20 PM


QUESTION POSTED AT 29/03/2020 - 06:20 PM

What is the fifteenth term of the sequence 5, -10, 20, -40, 80

5, -10, 20, -40, 80,
the pattern is (n*-2)
-160,  320, -640, 1280, -2560, 5120, -10240, 20480, -40960, 81920.

81,920 is your answer.

ANSWERED AT 29/03/2020 - 06:19 PM


QUESTION POSTED AT 29/03/2020 - 06:19 PM