Answer:
2n - 3
Step-by-step explanation:
twice a number means to multiply it by 2
difference of a number and 3 is a number being reduced by 3 so the 3 comes after the subtraction sign
By direct evaluation we conclude that the point (x, y) = (1, - 2) lies on the graph of the <em>quadratic</em> equation h(x) = - 2 · x². (Correct choice: C)
<h3>What ordered pair lies on the curve generated by a given function? </h3>
In this problem we have three <em>ordered</em> pairs to be checked on a given function by direct evaluation, a <em>ordered</em> pair lines on the curve of function if and only if the x-value of the <em>ordered</em> pair leads to the y-value by evaluating in the function. Now we proceed to evaluate each of the three points at the function presented in the statement:
(x, y) = (1, 4)
h(1) = - 2 · 1²
h(1) = - 2
By direct evaluation we conclude that the point (x, y) = (1, - 2) lies on the graph of the <em>quadratic</em> equation h(x) = - 2 · x². (Correct choice: C)
To learn more on quadratic equations: brainly.com/question/17177510
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Answer:
X=20º
Step-by-step explanation:
This is a vertical angle meaning both sides are congruent to each other.
Meaning: (x+100)º= 6x
Solve:
(x+100)º= 6x
-x -x
100º=5x
/5 . /5
x=20º