20 X 0.2(1/5 in decimal form) = 4
20 X 0.375(3/8 in decimal form) = 7.50
20 X 0.285714285714(2/7 in decimal form) = 5.71
4 + 7.50 + 5.71 = 17.21
20 - 17.21 = ?
he had $2.71 left
hope this helps :)
The domain of the function is the set of all real numbers and the range of the function is the set of all values greater than -2
<h3>How to determine the domain and the range?</h3>
The function is given as:
f(x) = 2(x -4)^2 - 2
A quadratic function can take any real number as its input.
So, the domain of the function is the set of all real numbers
The vertex of the above function is:
Vertex = (4, -2)
And the leading coefficient is:
a = 2
The y value of the vertex is;
y = -2
Because the value of a is positive, then the vertex is a minimum.
This means that the range of the function is the set of all values greater than -2
Read more about domain and range at:
brainly.com/question/10197594
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Equation:
Time*speed= distance
1.7(time)*22.4(speed)=38.08meter(distance)
(y-y0)/(x-x0)=slope
so (85-76)/(2-(-11))=9/13
