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IRINA_888 [86]
2 years ago
10

What is 8x squared +7=0 using the quadratic formula

Mathematics
1 answer:
lisabon 2012 [21]2 years ago
5 0
I think you mean 8x^2 + 7 =0
a = 8 b = 0 c = 7
x= [-b +- square root (b^2 - 4*a*c)] / 2a
x = [0 +-  square root (0 - 4*8*7)] / 2*8
x = +- square root (-224) / 16
x = +- <span> <span> <span> 14.9666295471 * i </span> </span> </span> / 16
x = + <span> <span> <span> 0.9354143467 </span> </span> </span> i
x = - <span> <span> 0.9354143467 </span> </span> i
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Step-by-step explanation:

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You can represent an odd integer whith the expression 2n+1, where n is any integer . Write and solve an equation to find three c
oksian1 [2.3K]
Any odd number can be expressed by 2n+1.

For example,  

2n+1=111
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means that 111 is 2n+1 for n=55


Thus if an odd number is 2a+1, the next few numbers are as follows:

2a+1, 2a+2, 2a+3, 2a+4, 2a+5

So 2a+1, 2a+3 and 2a+5 are 3 consecutive odd numbers.


Back to our problem: 

three consecutive odd numbers whose sum is 63 are:

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3 years ago
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tigry1 [53]

Answer:

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Step-by-step explanation:

From Analytical Geometry we know that a line is represented by this formula:

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y - Dependent variable, dimensionless.

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Then, we conclude that point M(x,y) = (1,3) belongs to the line y = 2\cdot x +1, whose graph is presented below.

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Answer:

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Step-by-step explanation:

Hope this helps! :)

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Step-by-step explanation:

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