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2 years ago

HELP! Simplify the sum. d^2+4d+3/d^2-7d-8 + d^2-2d-8/d^2+5d+6

1 answer:

8 0

To simplify the expression we proceed as follows:
d^2+4d+3/d^2-7d-8 + d^2-2d-8/d^2+5d+6
putting like terms together we have:
(d^2+d^2)+(4d-7d-2d+5d)+(3/d^2-8/d^2)+(-8+6)
=2d^2+0d-5/d^2-2
=2d²-5/d²-2

Answer: 2d²-5/d²-2

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iogann1982 [59]

Answer:

The correct option is C) Yes; the change in x is constant and the change in y is constant.

Step-by-step explanation:

Consider the table shown.

x y

0 8

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Now observe the changes in x and y coordinates, if changes are constant then the given function is linear.

Consider the change in x coordinate.

1-0=1, 2-1=1 and 3-2=1

Now consider the change in y coordinate.

1-8=-7, -6-1=-7 and -13-(-6)=-13+6=-7

Since the change in x and y is constant the given relationship is linear.

Therefore, the correct option is (C) Yes; the change in x is constant and the change in y is constant.

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2 years ago

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cupoosta [38]

Answer:

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Step-by-step explanation:

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3 years ago

9 to 2

Arlecino [84]

Answer:

$\frac { 4 } { 5 }$

Step-by-step explanation:

We are given the following two points and we are to find the slope of the line which passes through these points:

$(3.-1)$ and $(-2,-5)$

The formula of the slope is given by:

Slope = $\frac { y _ 2 - y _ 1 } { x _ 2 - x _ 1 }$

Substituting the given coordinates in the above formula:

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3 years ago

Which expression is equal to -18b^-4

victus00 [196]

Answer:

$- \frac{18}{ {b}^{4} }$

Step-by-step explanation:

$- 18b {}^{ - 4}$

express b^-4 with a positive exponent using:

$a {}^{ - n} = \frac{1}{ {a}^{n} }$

$- 18 \frac{1}{ {b}^{4} }$

$- \frac{18}{ {b}^{4} }$

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2 years ago

3. Graph y=-4x² – 2 and its inverse. (1 point)

madam [21]

Function and its inverse was graphed.

Step-by-step explanation:

y = -4x²- 2

To find the inverse function of y = -4x²- 2 we have to transform the formula to calculate x in terms of y.

y = -4x²- 2

-4x² = y - 2

x = √(y-2) / -4

Now we can change the letters to follow the convention that x is the independent variable and y is the function's value:

y = √(x-2) / -4

Now we have to draw the graph as,

It was side by side that is LHS is the function and the RHS is its inverse.

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3 years ago