Answer:
If you are doing x - 8 = 3, then x = 11
Step-by-step explanation:
Remember PEMDAS and whatever you do to one side of the equation, you have to do to the other side.
x - 8 = 3
First, add 8 to the -8 to cancel it out and isolate the variable. Since you are adding 8 to the left side of the equation, you have to add 8 to the right side as well
x - 8 + 8 = 3 + 8
Simplify.
x = 11
You can check your answer by substituting the variable.
11 - 8 = 3
This equation is true. Therefore x = 11.
Or are you referring to this?
Answer:
825.663706143591cm
Step-by-step explanation:
80cm × 4 = 320cm
100cm × 3 = 300cm
The radius is 40
40 × 2 = 80cm
Circumference is πd
π80 = 251.327412287183
÷ 2 = 125.663706143591cm
In total
320 + 300 + 80 + 125.663... =
825.663706143591cm
Answer:
let the polynomial be
f(x)=x³+2kx+2
is divided by
g(x)=x+2
hence
(x+2) is a factor of f(x)
so comparing with x-a we get a=-2
so
f(a)=0
f(-2)=(-2)³+2*-2*k+2
0=-8-4K+2
4k=-6
K=-6/4
k=-3/2
again
when divided by x+1
g(x)=x+1
hence
x+1 is a factor
so a=-1
f(-1)=-(1)³+2*-1*k+2
0=-1-2k+2
0=1-2k
k=1/2
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<u>and</u>
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The answer is 8x-1 I believe