2 years ago

Ms. Webb said that 50% of her students made a B, 20% made a C, and the rest of her students

Mathematics

1 answer:

ankoles [38]2 years ago

6 0

Answer:

110

Step-by-step explanation:

30% of her students got an A, divide 33 by 0.3 (30%) to see that 33 is 30% of 110

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Which graph represents the function of f(x) 9x^2 + 9x - 18 / 3x + 6

Irina-Kira [14]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

$f(x)=\frac{9x^{2}+9x-18}{3x+6}$

Remember that in a quotient, the denominator cannot be equal to zero

The value of x cannot be equal to x=-2

Simplify the expression

Using a graphing tool

The roots of the quadratic equation in the numerator are

x=-2 and x=1

$9x^{2}+9x-18=9(x+2)(x-1)$

Simplify the denominator

$3x+6=3(x+2)$

substitute in the original expression

$f(x)=\frac{9(x+2)(x-1)}{3(x+2)}$

Simplify

$f(x)=3(x-1)$

$f(x)=3x-3$

Is the equation of a line

The y-intercept is the point (0,-3) (value of the function when x is equal to zero)

The x-intercept is the point (1,0) (value of x when the value of the function is equal to zero)

Graph the line, but remember that the value of x cannot be equal to -2

The graph in the attached figure

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A mapping statement is a way of describing a _____ of a figure.

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A drug prescription of 45 pills costs $427. 95. If each pill contains 3 mg of medication, what is the cost per milligrams?

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