As you know, the domain is the values "x" can safely take on.
well, for a logarithmic expression, it can never have an expression of 0, namely in this case, x + 4 must never be 0, since such a logarithm doesn't exist.
now, x + 4 = 0 ---> x = -4.
thus if "x" ever becomes -4, we'd end up with log₃(-4+4), or log₃(0), which is a no dice.
so the domain is all values except -4.
Hello,
xy=2 is the cartesian form.
Indeed:
x=r cos t ==>cos t=x/r
y=r sin t ==> sin t=y/r
r²*sin 2t=4 ==>r²*2 sin t cos t=4
==>r²*x/r*y/r=2==>xy=2
Answer:
j=38
Step-by-step explanation:
j/-2+7=-12
Subtract 7 from each side
j/-2 +7-7 = -12 -7
j/-2 = -19
Multiply by -2 to isolate j
j/-2 * -2 = -19*-2
j = 38
Answer:
its 5
Step-by-step explanation:
P(0,0) and R(2b, 2c)
Midpoint:
x = (x1+x2)/2 and y=(y1+y2)/2
Midpoint PR
x = (0 + 2b)/2
= 2b/2
=b
y = (0 + 2c)/2
=2c/2
=c
Midpoint PR (b,c)
Answer is the last one
(b,c)