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2 years ago

What is the sum of the series?

Mathematics

1 answer:

otez555 [7]2 years ago

4 0

Okay, the number above the sigma(4) indicates what value you go to, and what's below the sigma tells you where to start, and the stuff on the right is the expression you're using.

So we start with 1 and go to 4, adding all the values in between.

(2(1))^2 + (2(2))^2 + (2(3))^2 + (2(4))^2

2^2 + 4^2 + 6^2 + 8^2

4 + 16 + 36 + 64

120

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WILL MARK BRAINLIEST IF GOTTEN RIGHT!!!!

nikdorinn [45]

Answer:

C both line and point symmetry

Step-by-step explanation:

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2 years ago

Need help on this please this one is hard for me

pshichka [43]

9514 1404 393

Answer:

y = -7x

Step-by-step explanation:

The line goes through the origin, so the y-intercept is b=0.

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2 years ago

Randy and Carla like to walk the path

Maksim231197 [3]

<h3>Answer: 18 miles</h3>

Reason:

The path is 2 miles and Randy walked it 13 times. He walked a total of 2*13 = 26 miles.

Carla walked the path 22 times, so she walked a total of 2*22 = 44 miles.

The difference of those results is 44-26 = 18 miles.

If you wanted to do the full calculation in one line, then it would be

2*22 - 2*13 = 18

or you could say

2*(22-13) = 18

8 0

1 year ago

If thewronskian w of f and g is 3e4t,and if f(t) = e2t,find g(t).

ehidna [41]

$W(f(x),g(x))=\begin{vmatrix}f(x)&g(x)\\f'(x)&g'(x)\end{vmatrix}=f(x)g'(x)-g(x)f'(x)$

We have $f(t)=e^{2t}\implies f'(t)=2e^{2t}$ , so

$W(f(t),g(t))=e^{2t}g'(t)-2e^{2t}g(t)=3e^{4t}$
$\implies e^{-2t}g'(t)-2e^{-2t}g(t)=3$
$\implies\dfrac{\mathrm d}{\mathrm dt}[e^{-2t}g(t)]=3$
$\implies e^{-2t}g(t)=\displaystyle\int3\,\mathrm dt$
$\implies e^{-2t}g(t)=3t+C$
$\implies g(t)=3te^{2t}+Ce^{2t}$

where $C$ is any arbitrary constant.

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3 years ago

Yall help a bestie out lol

marin [14]

Answer:

152 sq. ft

Step-by-step explanation:

to determine the square you multiply the length by the width (16 by 8)

to determine to area of the triangle you must subtract 12 by 16 in order to get the length of the triangle. then multiply the length (4) of the triangle by the height of the triangle (6)

finally add the areas of the triangle and square together to get the total length of the whole thing.

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3 years ago