What is the value of x in the equation 1.5(x + 4) – 3 = 4.5(x – 2)? 3 4 5 9
2 answers:
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Answer:
value of gold is $33.17
Step-by-step explanation:
given data
depth d = 3800 m = 3.8 km
area A = 3.63 × 10^8 km²
average concentration = 5.8 × 10^−9 g/L
price of gold = $129.00 / troy oz
to find out
value of gold
solution
first we find volume that is
volume v = A× d
put here value
volume = 3.8 × 3.63 × 10^8
volume = 13.794 × km³
volume = 137.94 × L
so mass = 5.8 × × 137.94 ×
mass = 8 × g
mass = 0.2572 troy oz
here we know 1 troy oz = 31.1 g
and we know 1 troy oz = $129
so 0.2572 troy oz = 129 × 0.2572
0.2572 troy oz value is $33.17
value of gold is $33.17
Answer:
y = -2(x+2)(x-1)/((x+3)(x-6)) = (-2x^2 -2x +4)/(x^2 -3x -18)
Step-by-step explanation:
A polynomial function will have a zero at x=a if it has a factor of (x-a). For the rational function to have zeros at x=-2 and x=1, the numerator factors must include (x+2) and (x-1).
For the function to have vertical asymptotes at x=-3 and x=6, the denominator of the rational function must have zeros there. That is, the denominator must have factors (x+3) and (x-6). Then the function with the required zeros and vertical asymtotes must look like ...
f(x) = (x+2)(x-1)/((x+3)(x-6))
This function will have a horizontal asymptote at x=1 because the numerator and denominator degrees are the same. In order for the horizontal asymptote to be -2, we must multiply this function by -2.
The rational function may be ...
y = -2(x +2)(x -1)/((x +3)(x -6))
If you want the factors multiplied out, this becomes
y = (-2x^2 -2x +4)/(x^2 -3x -18)
