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Dima020 [189]
3 years ago
6

What is the sum of the geometric series 2^0 + 2^1 + 2^2 + 2^3 + 2^3 + 2^4 + … + 2^9?

Mathematics
2 answers:
avanturin [10]3 years ago
5 0
So this one you don't multiply the base by the exponent. in this case its 2 times two how ever many time the exponent says.
2^0= 2
2^1= 2
2^2=4
2^3= 8
2^4=16
2^5=32
2^6=64
2^7=128
2^8=256
2^9=512
 So then you add all them up 
2+2+4+8+16+32+64+128+256+512= 1024

so there is your answer 1024


GREYUIT [131]3 years ago
4 0
Sum is
S_{n}=\frac{a_{1}(1-r^{n})}{1-r}

r=common ratio
a1=first term
it looks like 2^0=1 is the first term aka a1
it goes to the 9th term (2^9)

sub
S_{9}=\frac{1(1-(2)^{9})}{1-2}
S_{9}=\frac{1-512}{-1}
S_{9}=\frac{-511}{-1}
S_{9}=511

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Once upon a time a brave and mathematically-inclined warrior named Al Jebra set out on a quest to rescue the kidnapped Princess
Tatiana [17]

Answer:

2 feet

Step-by-step explanation:

8 0
3 years ago
David kicks a ball off the ground. After t seconds, it’s height, h (in feet), is given by the formula h=-16t^2+80t. How many sec
tamaranim1 [39]

Answer:

<em>The ball reaches its maximum height at 2.5 seconds</em>

<em>The maximum height is 100 feet</em>

Step-by-step explanation:

<u>Maximum Value of Functions</u>

We use the derivative of a function to find its maximum or minimum value over a given interval.

Given a function y=f(x), the first derivative criterion establishes if x=a is such that:

f'(a)=0, and f''(a) < 0 then x=a is a maximum of f.

The height h in feet of a ball after t seconds is:

h(t)=-16t^2+80t

Find the first derivative:

h'(t)=-32t+80

Equate to 0:

-32t+80=0

Subtract 80:

-32t=-80

Divide by -32:

t = -80 / (-32) = 2.5

t=2.5 seconds

Find the second derivative:

h''(t)=-32

Since h''(t) is always negative, then

The ball reaches its maximum height at 2.5 seconds

To find the value of the maximum height, substitute t=2.5 into the function:

h(2.5)=-16(2.5)^2+80*2.5=-100+200 = 100

The maximum height is 100 feet

8 0
3 years ago
4444444444444444444444444444444444444444444444444444444444
Liula [17]
If you want to solve that put it in the formula to find the slope
M=
Y1-y2
---------
X1-x2

And plug that into slope int form with one of the points to find the y int/ b value and then your have ur equ
4 0
3 years ago
Please Help! Look at the picture down below. I don't understand this question at all.
Verdich [7]
U need a calculator
5 0
2 years ago
How can you use distributive property to find 3/4 times 2 and 1/3
zubka84 [21]

Answer:

1 3/4

Step-by-step explanation:

You can set it up like the distrubtive property first

3/4(2+ 1/3)    Next you use the distirbutive property instead of adding inside the parenthesis and you multiply the 3/4 by 2 and then the 3/4 by 1/3

Use 2 as 2/1 in fraction problems

3/4 * 2/1        Now multiply the numerators together and the denomenators together

3 * 2 = 6          4 * 1 =4

6/4

3/4 *1/3

3 * 1 =3

4 * 3 =12

3/12

Now we have to make them both like terms (same denominator) so we can add them, we will multiply the 6/4 by 3 (Both top and bottom)

6 * 3 = 18               4 *3 =12

18/12

Now we add the fractions

3/12 +18/12 = 21/12

Reduce that and you get

21/12 = 1 9/12  or 1 3/4

5 0
3 years ago
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