Answer:
Option A
Step-by-step explanation:
Equation of the given quadratic function is,
y = 2x² + 8x + 3
y = 2(x² + 4x) + 3
= 2(x² + 4x + 4 - 4) + 3
= 2(x + 2)² - 8 + 3
= 2(x + 2)² - 5
By comparing this equation with the equation of a quadratic function in vertex form,
y = a(x - h)² + k
Here (h, k) is the vertex of the parabola
Vertex of the given equation will be (-2, -5) and coefficient 'a' is positive (a > 0)
Therefore, vertex will lie in the 3rd quadrant and the parabola will open upwards.
Option (A). Graph A will be the answer.
Answer:
a) 0.216
b) 0.784
c) 0.288
d) 0.352
e) 0.784
Step-by-step explanation:
The solution steps is attached as an image.
Answer: She has 27 quarters.
Step-by-step explanation:
Let be "d" the number of dimes Marcy has and "q" the number of quarters Marcy has.
Based on the information provided in the exercise, we can set up the following system of equations:
<em> </em>In order to solve the system of equations, we can use the Elimination method:
- Multiply the first equation by -0.1
- Add the equations.
- Solve for "q".
Then:
Answer:
[0, infinity)
Step-by-step explanation:
The square root is a function that is not defined for negative values, since they belong to another space, the complex space.
Having that in mind that means
x>=0
That's it
Answer:
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