Julie likes to ride her bike during summer vacation. In June, she rode her bike 104.78 miles. In July, she rode 129.53 miles. In
2 answers:
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Answer:
12 + 8
+ 12 + 4
Step-by-step explanation:
Using the rule of radicals
×
⇔
Given
(4 + 2
)(3
+ 2
)
Each term in the second factor is multiplied by each term in the first factor, that is
4 (3
+ 2
) + 2
(3
+ 2
) ← distribute both parenthesis
= 12 + 8
+ 12 + 4
Answer:
In a quadratic equation of the shape:
y = a*x^2 + b*x + c
we hate that the discriminant is equal to:
D = b^2 - 4*a*c
This thing appears in the Bhaskara's formula for the roots of the quadratic equation:
You can see that the determinant is inside a square root, this means that if D is smaller than zero we will have imaginary roots (the graph never touches the x-axis)
If D = 0, the square root term dissapear, and this implies that both roots of the equation are the same, this means that the graph touches the x axis in only one point, wich coincides with the minimum/maximum of the graph)
If D > 0 we have two different roots, so the graph touches the x-axis in two different points.
Hi there!
Evaluating f(x) at x = 9 means we must use the piecewise function where x = 9 is included.
f(x) = 12 includes 9 because a "≤" is inclusive of the interval. Thus:
f(9) = 12
Answer:
Step-by-step explanation:
Check the attachment the solution of the work is given there
