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monitta
3 years ago
7

What is the product? 2х(х – 4)

Mathematics
1 answer:
Otrada [13]3 years ago
3 0
2x2-8x (two x squared minus 8 x)
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How many times would you jump the decimal point over in your answer for the problem 7.2 x 3?
Norma-Jean [14]

Answer:

once

Step-by-step explanation:

8 0
3 years ago
What is the difference? x/x^2-2x-15 -4/x^2+2x-35 '
Butoxors [25]

Answer:

Option D.

Step-by-step explanation:

The given expression is :\frac{x}{x^{2}-2x-15 } -\frac{4}{x^{2} +2x-35}

Factoring the denominators we have:

\frac{x}{(x-5)(x+3)} -\frac{4}{(x+7)(x-5)}

Making denominators same and simplifying the fractions  we have:

\frac{x^{2}+7x-4x-12 }{(x-5)(x+3)(x+7)} =\frac{x^{2}+3x-12 }{(x+3)(x-5)(x+7)}

Option D is the right anser.

8 0
4 years ago
Read 2 more answers
Is anyone good at this? Please help me!
liubo4ka [24]

Answer:

Step-by-step explanation:

For a function given as,

f(x)= 2x + 2

Domain of the given function is → {-5, -1, 2, 3}

For the Range of the given function,

f(-5) = 2(-5) + 2

      = -8

f(-1) = 2(-1) + 2

      = -2 + 2

      = 0

f(2) = 2(2) + 2

     = 6

f(3) = 2(3) + 2

     = 8

Therefore, set for the range will be → {-8, 0, 6, 8}

Now plot the ordered pairs on the graph,

(-5, -8), (-1, 0), (2, 6), (3, 8)

5 0
3 years ago
Which could be the function graphed below?
inysia [295]

Answer:

Probably A, or 1

Step-by-step explanation:

You see, a square root function actually looks like a sideways parabola, just missing one side because of the domain of a square root. Now, the reason I can tell them apart is because our vertex is below the y-axis, and the only equation that has a negative y-intercept is the first one, or A.

Hope this helps!

5 0
3 years ago
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When using substitution, choose the best choice that describes a possible first step in solving
hram777 [196]

Answer:

C. SUBTRACT (2x) from both sides in the bottom equation

Step-by-step explanation:

Given

3x - 6y = -12

2x + y = 12

Required

The first step of a substitution method

In the second equation, notice that the coefficient of y is 1.

So, the first step is to make y the subject of the formula.

This is achieved by subtracting 2x from both sides of the equation.

2x + y = 12

2x - 2x + y = 12 - 2x

y = 12 - 2x

<em>Hence: (c) is true</em>

7 0
3 years ago
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