Answer:
I think it's the last to they sound way more independent!!!
<em>Answer:</em>
<em>12000</em>
<em>Step-by-step explanation:</em>
<em>20% of 15000 is 3000.</em>
<em>So he will pay 12000.</em>
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<em>Hope I helped you!</em>
<em></em>
Answer:
Step-by-step explanation:
Given that,
The radius of the sphere, r = 8 mm
We need to find the volume of the sphere. The formula for the volume of a sphere is given by :
Put all the values,
So, the volume of the sphere is equal to .
Discriminant, D = b² - 4ac
x² - 4x + 5 = 0 comparing to ax² + bx + c = 0
a = 1, b = -4, c = 5
D = b² - 4ac = (-4)² - 4*1*5 = 16 - 20 = -4
In taking the square root of the discriminant of -4, √-4 = 2i = Not Real. So:
Discriminant is -4, so the equation has no real roots.
The second option is correct.