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AB = 4*xy             BC =  ?             AC = ?

that's incorrect.

that's incorrect.

The expression is equal to 4.

The set of possible values of a is [-2,2].

A rectangle has a perimeter of 144 inches . The width of the rectangle is 12 inches less than the length. What is the width, in inches , of the rectangle

width = 1/4 ( 144 - 2 * 12 )

The equation of line is y = 3x - 3.

By similar triangles, PQ/FH = 2/5.

A+B=8

X-Y=6

A+X=13

B+Y=8

2A+2B+2X=35

Which means A+B+X=17.5

A+B=8 so A+B+X= 17.5 8+C=17.5

X=17.5-8=9.5

We also know that

A+X=13

so A=13–9.5=3.5

A+B=8 B=8–3.5=4.5

B+Y=8 Y=8–4.5=3.5

So A=3.5 B=4.5 X=9.5 Y=3.5

The system said that basically you have to put it in the form  ax+by+c>0.  

Yes, I gave the equation of the line.  gwen... has correctly supplied the inequality.

oh ok thank you so much!!!

In regular slope intercept form, the inequality is y<=2x-4. We write this in standard form:

y<=2x-4

-2x+y<=-4

2x-y>=4.

The intercept is -4 and the slope is 4/2, so, in slope intercept form the equation is y = 2x - 4

I'll leave you to rearrange this in "standard" form (a pointless exercise in my view!).  

There are 72*6=432 portions of food. Now there are 18 athletes absent, so there are 72-18=54 athletes. 432/54=8 days.

If x = 1, then f(1) = 0 is real

If x = 2 then the denominator is 0, so f(2) is undefined.

I wonder if you meant to say the smallest positive (rather than possible) integer, in which case

if x = 3 then f(3) = sqrt(2) which is real.

The following should give you enough information to do the calculations:

The smallest postiive integer value of x is 5.

To win, Taylor needs to roll a 4, or a 5, or a 6.  

There are six numbers that might come up in any roll.  Taylor needs one of the three named above.  

Therefore she has 3 chances (4, 5, or 6) out of 6 possibilities (1, 2, 3, 4, 5, or 6) to win. 

So, of course, the answer is 3/6 = 50% 

_.

Laura = L
Ravi =L - 9
Milan =2L - 18
L+L-9+2L-18 = 93
4L = 93 + 9 + 18
4L = 120
L = 120 / 4 = $30 - What Laura has
$30 - $9 = $21 - What Ravi has
$21 x 2 = $42 - What Milan has
So that: $30 + $21 + $42 = $93

This graph should help (if you can see it!)

Thanks Alan and ilorty