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dolphi86 [110]
2 years ago
7

The sum of the first n consecutive even numbers can be found using S = n2 + n. What is the value of n when the sum is 272?

Mathematics
2 answers:
Harman [31]2 years ago
8 0

Answer:

n>2

Step-by-step explanation:

The sum of the first n consecutive even numbers can be found using S = n2 + n, where n > 2.

Citrus2011 [14]2 years ago
6 0

Answer:

The sum of the first n consecutive even numbers can be found using

The sum of the first n consecutive even numbers can be found using S = n2 + n, where n >

Step-by-step explanation:

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Solve for x. <br><br> x + 3x + 5 =21
timurjin [86]

Answer:

x=4

Step-by-step explanation:

In order to solve for x, we must isolate x on one side of the equation.

x+3x+5=21

First, combine like terms. x and 3x are both terms with variables, and can be combined.

(x+3x) + 5=21

4x + 5=21

5 is being added to 4x. The inverse of addition is subtraction. Subtract 5 from both sides of the equation.

4x+5-5= 21-5

4x= 16

x is being multiplied by 4. The inverse of multiplication is division. Divide both sides by 4.

4x/4=16/4

x= 16/4

x=4

Let's check our solution. Plug 4 in for x and solve.

x+3x+5=21

4+3(4)+5=21

4+12+5=21

16+5=21

21=21

This solution checks out, so we know our answer is correct.

x is equal to 4, x=4.

4 0
3 years ago
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What is 64 thousandths in decimal form​
shusha [124]
I am pretty sure it is 0.064. Hope this helps
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3 years ago
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Solve for x.
denis-greek [22]

Answer:

\frac{3\±\sqrt{3}}{3}

Step-by-step explanation:

Whe have the function 3x^2-6x+2=0

To solve this equation we must factor.

To factor, we need to find the points where the function is equal to zero. So we use the quadratic formula

\frac{-b\±\sqrt{b^2-4ac}}{2a}

Where:

a = 3

b = -6

c = 2

Then

\frac{-(-6) + \sqrt{(-6)^2-4(3)(2)}}{2(3)} = \frac{3+\sqrt{3}}{3}\\\\and\\\\\frac{-(-6) - \sqrt{(-6)^2-4(3)(2)}}{2(3)}= \frac{3-\sqrt{3}}{3}

finally the correct answer is  \frac{3\±\sqrt{3}}{3}

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2 years ago
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Anna007 [38]
If you would like to solve 1/3 / 6, you can do this using the following steps:

1/3 / 6 = 1/3 / 6/1 = 1/3 * 1/6 = 1/18

The correct result would be 1/18.
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2. Which expression is equivalent to 5-(-8)?<br> A (-5) + 8 B 8+5<br> C 8-5<br> D 5-8
ANTONII [103]
It’s 8-5
Reciprocal is flipped
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