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3 years ago

What is an equation with more than one variable called

Mathematics

2 answers:

Bad White [126]3 years ago

8 0

It is called a literal equation.

atroni [7]3 years ago

6 0

An equation with more than one variable is called a "literal Equation"

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2) which of these is a one-step equation?

Lady_Fox [76]

I think it would be B ?? Because it’s the shortest one ‍♀️

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3 years ago

Read 2 more answers

Given that the quadratic equation has equal roots (k^2-1)x^2-2kx-3k-1=0

Alik [6]

Answer:

(See explanation for further details)

Step-by-step explanation:

The real expression is:

$(k^{2}-1)\cdot x{{2} - 2\cdot k \cdot x - 3\cdot k + 1 = 0$

The general equation for the second-order polynomial is:

$x = \frac{2\cdot k \pm \sqrt{4\cdot k^{2}-4\cdot (k^{2}-1)\cdot (-3\cdot k + 1)}}{k^{2}-1}$

This condition must be observed for the case of a quadratic equation with equal roots:

$4\cdot k^{2} - 4\cdot (k^{2}-1)\cdot (-3\cdot k + 1) = 0$

$k^{2} + (k^{2}-1)\cdot (3\cdot k + 1) = 0$

$k^{2} + 3\cdot k^{3} - 3\cdot k - k^{2}-1 = 0$

$3\cdot k^{3} - 3\cdot k - 1 = 0$

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3 years ago

A suit costs $95. Barry has a discount coupon for 10% off and the city has a 4.5% sales tax. What is the final cost of the suit?

seropon [69]

So first you need to do the discount

(95)(0.9) = 85.5

then add the 4.5% sales tax:

(85.5)(1.045) = $89.35

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3 years ago

What is the distance between points (-6,8) and (-3,9)

SpyIntel [72]

The distance between points (-6,8) and (-3,9) is 9 units

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3 years ago