Answer:
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Step-by-step explanation:rfrfrefeffrefeferfeferfe
Answer: if I’m correct the answer is $0.38
Step-by-step explanation:
6.
4x^2 + 4 = 0
Divide both sides by 4
x^2 + 1 = 0
Use the quadratic formula since this cannot be factored.
x = (-b +- sqrt(b^2 - 4ac))/(2a)
x = +- sqrt(-4(1)(1))/2
x = +- sqrt(-4)/2
x = +- 2i/2
x = +- i
x = i or x = -i
Quicker solution:
If you have x^2 = number, then
x = +- sqrt(number)
Once you get to
x^2 + 1 = 0
Subtract 1 from both sides
x^2 = -1
Apply the quick method
x = +- sqrt(-1)
x = +- i
8.
2x^2 + 50 = 0
Divide both sides by 2
x^2 + 25 = 0
Subtract 25 from both sides
x^2 = -25
Apply quick method
x = +- sqrt(25)
x = +- 5i
x = 5i or x = -5i
Answer:
In the diagram shown of circle A, tangent MB is drawn along with chords BAC and BF . Secant MFE intersects BAC at G. It is known that angle FBC = 52 and arc BE = 138 .
Step-by-step explanation:
Answer:
Total money = $80
Let x be the no of pounds
Cost of one pound = $8.37
Money spent = 80-29.78=50.22
But 8.37x is also the money spent
Implies
8.37x=50.22
X=50.22÷8.37=6 is the no of pounds