A smart phone costs 149.99 before tax. The tax on the smart phone is 7%. What is the total cost of the smart phone? Round your a
1 answer:
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1. False because a rational is a fraction or part of a number (
). 
2. True; a real number is any number that isn't imaginary (
)
3. True; same reason
4. True; an integer is any number that can be wrote without a fraction or decimal (the opposite of rational).
5. True;
and that's a decimal.
6. True; the natural number system starts from 0 and counts upwards
7. True; reason above
2. True; a real number is any number that isn't imaginary (
3. True; same reason
4. True; an integer is any number that can be wrote without a fraction or decimal (the opposite of rational).
5. True;
6. True; the natural number system starts from 0 and counts upwards
7. True; reason above
Answer:
and
Step-by-step explanation:
We are asked that what are the zeros of the quadratic function f(x) = 6x² +12x -7.
So, we have to find the roots of the equation, f(x) = 6x² +12x -7 =0 ...... (1)
Since the quadratic function can not be factorized, so we have to apply Sridhar Acharya's formula.
This formula gives if, ax² +bx +c =0, the the two roots of the equation are
Therefore, in our case 'a' being 6, 'b' being 12 and 'c' being -7, the two roots of the equation (1) will be
=
= and
Hence, x=
and x=
(Answer)