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lakkis [162]
3 years ago
11

The sum of n consecutive even numbers can be found using S=n2+n, where n > 2. What is the value of n when the sum is 156

Mathematics
1 answer:
Volgvan3 years ago
8 0
The sum<span> of </span>n consecutive even numbers can<span> be </span>found using S=n2+n<span>, where </span>n<span> > </span>2<span>. What is the </span>value<span> of</span>n<span> when the </span>sum<span> is </span>156<span> - 3304678.</span>
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Suppose a standard twelve-hour clock now shows a time of 10:45 what time will the clock show in a 100 hour from now
o-na [289]
It should show 2:45. You can use 12 hr increments to get you back to 10:45 and 12 goes into 100 nine times bringing it to 96. Because of that you have 4 more hours to add to 10:45 and that brings you to 2:45.
4 0
3 years ago
Read 2 more answers
As part of quality-control program, 3 light bulbs from each bath of 100 are tested. In how many ways can this test batch be chos
hichkok12 [17]

Answer:

<h3>By 161700 ways this test batch can be chosen.</h3>

Step-by-step explanation:

We are given that total number of bulbs are = 100.

Number of bulbs are tested = 3.

Please note, when order it not important, we apply combination.

Choosing 3 bulbs out of 100 don't need any specific order.

Therefore, applying combination formula for choosing 3 bulbs out of 100 bulbs.

^nCr = \frac{n!}{(n-r)!r!} read as r out of n.

Plugging n=100 and r=3 in above formula, we get

^100C3 = \frac{100!}{(100-3)!3!}

Expanding 100! upto 97!, we get

=\frac{100\times 99\times 98\times 97!}{97!3!}

Crossing out common 97! from top and bottom, we get

=\frac{100\times 99\times 98}{3!}

Expanding 3!, we get

=\frac{100\times 99\times 98}{3\times 2\times 1}

= 100 × 33  × 49

= 161700 ways.

<h3>Therefore,  by 161700 ways this test batch can be chosen.</h3>
3 0
3 years ago
STRUGGLING, please help! Need help with a math problem. ty
strojnjashka [21]

f(3) = 7(3) - 6

g(2) = 3(2)


f(3) = 15

g(2) = 6


15 - 6 = 9

5 0
3 years ago
Multiplying polynomials find the product . <br> 2x(-2x-3)
skad [1K]


2x(-2x-3)=

=2x*(-2x)+2x*(-3)=

=-4x²-6x

7 0
3 years ago
2/3<br> 21 and 23 can best be described as<br> 4
stich3 [128]

Answer:

A) Vertical angles

<u>----------------------</u>

1 and 3 and 2 and 4 are vertically opposite angles or vertical angles, so option A is correct.

<u>-----------------------</u>

<u>hope it helps...</u>

<u>have a great day!!</u>

6 0
3 years ago
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