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Darina [25.2K]
3 years ago
8

How do you know am equation has no solution?

Mathematics
2 answers:
Natasha2012 [34]3 years ago
7 0
If u work it out and both sides don't equal, then there is no solution.
Example :
2x + 4 = 2x + 6
2x - 2x = 6 - 4
0 = 2....this is incorrect...therefore, there is no solution
Elden [556K]3 years ago
4 0
A quadratic equation can have no real solution
aa x^{2} +bx+c=0
If b^{2} -4ac\ \textless \ 0 then the equation has no real solutions
Even simultaneous equations can have no solutions
ax+by=c------1
ax+by=d------2
I these two equations the two expressions equal different things, so the equation has no solutions
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Louis bought a giant sub sandwich for the party. He wants to cut into 6-inch sections. If the sandwich is 18.25 feet, how many s
Lynna [10]
36.5
He’d have 36, 6 in sandwiches and a 3 inch section left
Explanation:
Take 18.25 and multiply by 12 which gives you 219. The amount of inches in the sandwich. Then divide 219 by 6 and you get 36.5
5 0
1 year ago
Which expression represents:<br> the sum of a number and 12<br> N 12<br> 1 x 12<br> 12 m<br> 12
marysya [2.9K]
Sum is the result of adding so
12 + x, but i don't see it as a option.
7 0
3 years ago
Express a(2) (2a(-1/2)+a) in its simplest form
Soloha48 [4]
First lets simplify the first term and yield (2a)

The second term:
1.   2a * (-1/2) = -a
2.   -a + a = 0

Now we have simplified both terms to: (2a) (0)

Anything multiplied by 0 is 0, so the answer is also 0. 
4 0
3 years ago
Read 2 more answers
Rectangle A has a length of 2x + 6 and a width of 3x. Rectangle B has a length of x + 2 and an area of 12 square units greater t
Maurinko [17]
So here is how you solve for the answer.
Firstly, you solve for the Area of Rectangle A.
The formula for Area is Length x width.
So A = (2x + 6)(3x) and the result is: 6x^2 + 18x
Now, let y be the width of rectangle B.
<span>(x+2) (y) = 6x^2 + 18x + 12
(x+2) y = 6(x+1)(x+2)
y = 6(x+1)
</span>So the final answer would be width is 6x + 6. The answer is the third option. Hope this answer helps.
7 0
3 years ago
Write an equation for a line that passes through (-4,8) and 8,-1
KatRina [158]
Slope is change in y over change in x.

Change in y is -9
Change in x is +12

So -9/12 or -2/3

Answer -2/3
5 0
3 years ago
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