Equation is:
and Value of x is
Step-by-step explanation:
We need to write an equation of:
The sum of 3 times a number and 7, divided by 5, is 17
Let the number = x
So, equation will be:
We can solve the equation to find the value of x.
So, Equation is:
and Value of x is
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Answer:
The coefficient of the squared expression in the parabola equation is
Step-by-step explanation:
The equation of a parabola in its vertex form is:
Where the vertex of the parabola is the point (h, k)
a is the ceoficiente of the term to the square.
We need to find the equation of a parabola that has its vertex in the point:
(-5, -2)
So:
Therefore the equation is:
We know that the point (-4, 2) belongs to this parable. Then we can find the value of a by replacing the point in the equation of the parabola
Finally the coefficient is a = 4
Answer:
any number except -20
Step-by-step explanation:
Multiply by -1 to make the k positive. This will alter all the terms which means 20 will become negative. NOTE: When multiplying or dividing by negative numbers, the inequaliy sign flips.
k must be either greater than -20 but not including it or fewer than -20 but not including it; therefore, any number between negative infinity and -21 and -19 and postive infinity