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3 years ago

Find the value of x (3x-9) (x + 7)

Mathematics

1 answer:

laila [671]3 years ago

3 0

Answer:

x=-3 and x=-7

Step-by-step explanation:

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Please explain how to do it because im very confused please and thank you!!!!!!!

mezya [45]

Answer:

108°

Step-by-step explanation:

Formula :

Degree Measure = Arc length / radius x 180/π

Solving :

Degree Measure = 3π/5 x 180/π

Degree Measure = 3 x 36

Degree Measure = 108°

4 0

1 year ago

Read 2 more answers

Write an expression that represents the sum of 7and x

Lady_Fox [76]

Answer:

$7 + x$

Step-by-step explanation:

............................

6 0

3 years ago

Read 2 more answers

2x^2 / x^2 - y^2 - x^2 / xy - y ^ 2

Juliette [100K]

Answer:

2 - 2y^2 - x/y

Step-by-step explanation:

2x^2/x^2 = 2

and

x^2/xy = x/y

therefore

2x^2/x^2 - y^2 - x^2/xy - y^2

= 2 - y^2 - x/y - y^2

= 2 - y^2 - y^2 - x/y

= 2 - 2y^2 - x/y

6 0

3 years ago

What is the slope of the line that passes through (1, 4) and (1, −3)?

Mazyrski [523]

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (1, 4) and (1, -3). Substitute:

$m=\dfrac{-3-4}{1-1}=\dfrac{-7}{0}\qquad\boxed{!!!!}$

DIVISION BY ZERO!!!

Answer: The slope is undefined.

It's a vertical line x = 1.

6 0

3 years ago

Let g(x) = 2x and h(x) = x^2 + 4. Find the value.(g o h) (0)a) 4b) 8c) 0d) 16

Paul [167]

$\begin{gathered} \text{Given} \\ g(x)=2x \\ h(x)=x^2+4 \end{gathered}$

Solve for (g o h)(x)

$\begin{gathered} (g\circ f)(x)=g\big(f(x)\big) \\ (g\circ f)(x)=g(x^2+4) \\ (g\circ f)(x)=2(x^2+4) \\ (g\circ f)(x)=2x^2+8 \end{gathered}$

Next substitute x = 0

$\begin{gathered} (g\circ f)(x)=2x^2+8 \\ (g\circ f)(0)=2(0)^2+8 \\ (g\circ f)(0)=8 \end{gathered}$ $\text{Therefore, }(g\circ f)(0)=8$

5 0

1 year ago