<span>1/(2x+3) = -x +7
cross-multiply
1 = (2x+3)(-x+7)
1 = -2x^2 +14x -3x +21
2x^2 -11x -20 = 0
use quadratic formula
x = {11 +/- sqrt(281)} /4
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or do you mean
1/2x + 3 = -x + 7
multiply all terms by x
1/2 + 3x = -x^2 + 7x
x^2 -4x = -1/2
x^2 -4x + 4 = 4 - 1/2
(x-2)^2 = 14/4
x-2 = +/-sqrt(14)/2
x = [4 +/- sqrt14] /2
hope this helps!</span>
Answer:
there are 32 million total workers in the 16-24 age group
Step-by-step explanation:
- 24% × 4 = 100%
- 8 million × 4 = 32 million
Answer:
3/10
Step-by-step explanation:
Just multiply all of the numerators (top numbers) and then multiple all of the denominators (bottom numbers)
2/3x3/4x3/5 would be 18/60 Then take any number that is a factor to both 18 and 60 and divide both numbers by that factor. I could use 2 or 3 or 6 because both 18 and 60 is divisible by any of these numbers. I will choose 3. I will divide the top and bottom of 18/60 by 3 to get 6/20, now I will divide the top and bottom of that number by 2 to get 3/10
Csc(x) = 1/sin(x)
sec(x) = 1/cos(x)
cot(x) = [1/sin(x)] / [1/cos(x)]
cot(x) = 1/sin(x) * cos(x)/1
cot(x) = cos(x) / sin(x)
cot(x) = cot(x)