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3 years ago

Find the value of x. 120 120 2x x x

Mathematics

1 answer:

larisa86 [58]3 years ago

3 0

Answer:

Step-by-step explanation:

If the figure is a pentagon with 5 sides, then the angles must add to 540.

120 + 120 + 2x + x + x = 540.

Solve by combining like terms and subtracting them from 540.

240 + 4x = 540

4x = 300

x = 75

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Solve the equation 1/3 + 1/4

Ronch [10]

1/3+1/4 = 4/12 + 3/12 = 7/12

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3 years ago

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in an election a candidate go 82 votes.He won the election beating his rival candidate by 576 votes.How many votes were pull?

Tanya [424]

Answer:

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Step-by-step explanation:

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3 years ago

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

ddd [48]

Answer:

$f'(x) = 4x^2 - 3$ for $x \le -3$

Step-by-step explanation:

See attachment for proper question

Given

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

For

$x \ge -3$

Required

Determine the inverse function

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

Replace f(x) with y

$y = -\frac{1}{2}\sqrt{x + 3}$

Swap the positions of x and y

$x = -\frac{1}{2}\sqrt{y + 3}$

Multiply both sides by -2

$-2 * x =-2 * -\frac{1}{2}\sqrt{y + 3}$

$-2x =\sqrt{y + 3}$

Square both sides

$(-2x)^2 =(\sqrt{y + 3})^2$

$4x^2 =y + 3$

Make y the subject

$y = 4x^2 - 3$

The inverse has been solved. So, we need to replace y with f'(x)

$f'(x) = 4x^2 - 3$

Next, is to determine the interval

$x \ge -3$

Change inequality to $\le$

$x \le -3$

Hence, the inverse function is:

$f'(x) = 4x^2 - 3$ for $x \le -3$

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3 years ago

A diver descends to a depth of –25.6 feet relative to sea level. How many feet must the diver ascend to reach sea level?

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Answer:

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Step-by-step explanation:

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2 years ago

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diamong [38]

For
|a|>b
assume
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solve each
minus 4 both sides

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A is answer

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4 years ago