It will be negative. The answer is b= -10
put all the combos together first like -3xy
then the x's like -x + 7x +2x=8x
then the y's
then the whole numbers
-3xy+8x (then the y's) then the whole numbers.
I am not sure how you are writing the numbers above like -x 4 is that -x to the 4th power?
x^4 then the x^3 and so forth then the y's then the whole numbers.
Always start adding the highest x power numbers first like x^4 + 2x^4=3x^4 then work your way down. Maybe rewrite the problem please.
For 1.30 you will shade in one full grid because that equals 1 and also shade in 3 coloms on the next grid which equals .30.
Then shade in 5 coloms and 1 single block on the the next grid which will equal .51 after
Step-by-step explanation:
We need to do LCM in this case.
2_|_ 6,4,16
2 _|_ 3,2,8
_|_ 3, 1,4
It is not divisible further.
So, LCM is 2×2×3×4 = 48
<u>So, 48 is the answer.</u>
Hope it helps :)

9514 1404 393
Answer:
(a) 4/3
(b) y -3 = 4/3(x -1)
(c) y -3 = -3/4(x -1)
(d) r = 5
Step-by-step explanation:
a) The slope is given by the slope formula:
m = (y2 -y1)/(x2 -x1)
m = (7 -3)/(4 -1) = 4/3
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b) The radius is normal to the circle. The point-slope form of the equation for a line can be useful here:
y -k = m(x -h) . . . . . line with slope m through point (h, k)
For slope 4/3, the line through point (1, 3) will have the equation ...
y -3 = 4/3(x -1) . . . . point-slope equation of the normal
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c) The tangent is perpendicular to the radius. It will have a slope that is the opposite reciprocal of the slope of the radius: -1/(4/3) = -3/4.
y -3 = -3/4(x -1) . . . . point-slope equation of the tangent
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d) The radius can be found from the distance formula.
d = √((x2 -x1)² +(y2 -y1)²)
d = √((4 -1)² +(7 -3)²) = √(3² +4²) = √25 = 5
The radius of the circle is 5.