3 years ago

Help help help help help help help

Mathematics

1 answer:

neonofarm [45]3 years ago

3 0

Answer:

D= -16.8

Step-by-step explanation:

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Dahasolnce [82]

Answer:

True

Step-by-step explanation:

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Once again due 11:59 pls help

vovikov84 [41]

Answer:

In the equation, it divides 21 by x before knowing what x is, and gets it incorrect. Instead, you need to divide 21 by -4.2.

Step-by-step explanation:

-4.2x = 21

-------------

-4.2

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Which values from the set{5,7,9,11,13} make the inequality w-4<8 true?

Rasek [7]

Answer:

5, 7, 9, 11

Step-by-step explanation:

Solve the inequality

w - 4 < 8 ( add 4 to both sides )

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3 years ago

Pick the digit in the one billion place 263,136,816,799

Sophie [7]

Answer: 3

3,000,000,000

Step-by-step explanation:

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2 years ago

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Find the inverse of f(x)=(x−5)/(−4x−2)

uysha [10]

Answer:

${f}^{ - 1} (x)= \frac{ 5 - 2x }{ 4x + 1}$

Step-by-step explanation:

The given rational function is

$f(x) = \frac{x - 5}{ - 4x - 2}$

Let

$y = \frac{x - 5}{ - 4x - 2}$

Interchange x and y

$x= \frac{y- 5}{ - 4y - 2}$

Cross multiply

$x( - 4y - 2)= y- 5$

Expand

$- 4xy - 2x= y- 5 \\ - 4xy - y= 2x - 5 \\y( - 4x - 1)= 2x - 5$

Solve for y;

$y= \frac{ 2x - 5}{ - 4x - 1}$

$y= \frac{ 5 - 2x }{ 4x + 1}$

Therefore

${f}^{ - 1} (x)= \frac{ 5 - 2x }{ 4x + 1}$

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3 years ago