2 years ago

Plz help me it's due today

Mathematics

1 answer:

sveticcg [70]2 years ago

4 0

60 miles per hour is the speed

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What is the first ordered pair and the second ordered pair?

Delvig [45]

When x=-5, y=(1/5)*(-5)-1=-2, so the first order pair is (-5,-2)
when y=-1, -1=(1/5)x-1, (1/5)x=0, x=0, so the second ordered pair is (0, -1)

7 0

2 years ago

The sum of 18 +45 is a multiple of which sum?

forsale [732]

Answer:

B. (2 + 5).

Step-by-step explanation:

18 + 45 = 63

The prime factors of 63 = 3*3*7

So 63 is a multiple of 7.

The answer is (2 + 5) (=7).

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2 years ago

What is 5 + 72? a 81 b 72 c 5 d 62

maxonik [38]

The answer is 77 but i don't see it as an option here ;/

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2 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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2 years ago

In Jeopardy, if you answer a question

Nata [24]

-150 points cause 200-350= -150

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2 years ago