Martina got a prepaid debit card with $20 on it. For her first purchase with the card, she bought some bulk ribbon at a craft st
1 answer:
You might be interested in
Answer:
R300
Step-by-step explanation:
<u>To solve:</u>
- Multiply 25 by 6 to represent the earnings of a shift.
- Multiply the shift earnings by 2 to represent how much he earned over the weekend.
<u>Multiply</u><u> </u><u>25 by 6:</u>
<u>Multiply 150 by 2:</u>
<u></u>
Joe will earn R300 over the weekend,
Considering the definition of zeros of a function, the zeros of the quadratic function f(x) = x² + 4x +9 do not exist.
<h3>Zeros of a function</h3>The points where a polynomial function crosses the axis of the independent term (x) represent the so-called zeros of the function.
In summary, the roots or zeros of the quadratic function are those values of x for which the expression is equal to 0. Graphically, the roots correspond to the abscissa of the points where the parabola intersects the x-axis.
In a quadratic function that has the form:
f(x)= ax² + bx + c
the zeros or roots are calculated by:
The quadratic function is f(x) = x² + 4x +9
Being:
- a= 1
- b= 4
- c= 9
the zeros or roots are calculated as:
and
If the content of the root is negative, the root will have no solution within the set of real numbers. Then has no solution.
Finally, the zeros of the quadratic function f(x) = x² + 4x +9 do not exist.
Learn more about the zeros of a quadratic function:
#SPJ1