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3 years ago

5

I don't understand how this works

1 answer:

Bingel [31]3 years ago

8 0

Answer:

The commutive property used twice, once on each of the two multiplication

The commutive property is where you can be able to switch around the numbers to multiply the problem to get your solution.

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What’s is the sum of the series?

STALIN [3.7K]

Answer:

<h2>44</h2>

Step-by-step explanation:

$\sum\limits_{k=1}^4(2k^2-4)\to a_k=2k^2-4\\\\for\ k=1:\\\\a_1=2(1)^2-4=2(1)-4=2-4=-2\\\\for\ k=2:\\\\a_2=2(2)^2-4=2(4)-4=8-4=4\\\\for\ k=3:\\\\a_3=2(3)^2-4=2(9)-4=18-4=14\\\\for\ k=4:\\\\a_4=2(4)^2-4=2(16)-4=32-4=28\\\\\sum\limits_{k=1}^4(2k^2-4)=-2+4+14+28=44$

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3 years ago

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4vir4ik [10]

2/3 miles. 210% turns into 0.210. that divided by 3.15 comes out to .66 repeating which converts to 2/3

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3 years ago

If sin(3x+2)=cos(4x-10), what is the value of x to the nearest tenth?A. 7.6B. 12.0C. 14.0D. 26.9

Nataly [62]

For a complimentary pair of angles i.e a+b=90 degrees, then cos a= sin b
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3 years ago

A) 40<br> B) 130<br> C) 90<br> D) 50

tensa zangetsu [6.8K]

Answer:

m<3 = 90

C

Step-by-step explanation:

This is a kite. The diagonals intersect each other in such a way that m<1 and m<3 are at right angles. m<3 = 90o

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4 years ago

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500 what?
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