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4 years ago

PLLLLLLLLLLLLLLLLLLLLEEEEEEEEEESSSSSSSSSSSSSSSWWWWWWWWWWW help me

Mathematics

1 answer:

laila [671]4 years ago

7 0

The answer is "D" Hope it helped :)

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If angle 4 is 52.7 what are the measures of angles 1, 2 and 3?

Paraphin [41]

I use math-a-way it answers questions like that

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3 years ago

What is the inverse of function f? F(X) = square root of x +7

katrin2010 [14]

Answer: $f^{-1} (x)=x^{2} -7$

Step-by-step explanation:

To find the inverse of a function replace f(x) with x and the original x with y

$f(x)=\sqrt{x+7} \\x=\sqrt{y+7}$

Now we can solve for y

Square both sides so we can cancel out the root

$x=\sqrt{y+7}\\x^{2} =\sqrt{y+7}^{2} \\x^{2} =y+7$

Now subtract 7 from both sides

$x^{2} =y+7\\x^{2} -7=y+7-7\\x^{2} -7=y$

Now replace y with the inverse of f(x), $f^{-1} (x)$

6 0

3 years ago

Read 2 more answers

Solve (x + y + 2)(y + 1)

stiv31 [10]

Answer:

xy+y2+x+3y+2

Step-by-step explanation:

7 0

3 years ago

Given f (x)=2x-5x-3 and g (x)=2x^2+x what is (f/g)(x)<br>

Rufina [12.5K]

ANSWER

$( \frac{f}{g} )(x ) = \frac{x - 3}{x} \: where \: \: x \ne0, - \frac{1}{2}$

EXPLANATION

Given:

$f(x) = 2 {x}^{2} - 5x - 3$

and

$g(x) = 2 {x}^{2} + x$

Then,

$( \frac{f}{g} )(x ) = \frac{f(x)}{g(x)}$

Substitute the given functions;

$( \frac{f}{g} )(x ) = \frac{2 {x}^{2} - 5x - 3}{2 {x}^{2} + x}$

Factor

$( \frac{f}{g} )(x ) = \frac{2 {x}^{2} - 6x + x - 3 }{x(2x + 1)}$

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

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

Cancel the common factors.

$( \frac{f}{g} )(x ) = \frac{x - 3}{x} \: where \: \: x \ne0, - \frac{1}{2}$

3 0

3 years ago

Which of the following ordered pair could NOT be included in this set if it is a function? { (-4, 2), (3, 6), (4, 3), (?, ?) }

pantera1 [17]

Answer:

I´m pretty sure it´s 2.(-3,6).

Step-by-step explanation:

7 0

3 years ago