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2 years ago

HELP ME PLEASE!!!!!

Mathematics

1 answer:

katen-ka-za [31]2 years ago

6 0

Answer: d≤69

Step-by-step explanation:

You would plug in all the values for d into the inequality

40(81) + 240 ≤ 3000

40(81) + 240 = 3000

3240+240=3000

3480=3000 false

40(75) + 240 ≤ 3000

40(75) + 240 = 3000

3000+240=3000

3240=3000 false

40(69) + 240 ≤ 3000

40(69) + 240 = 3000

2760+240=3000

3000=3000 true

You don't need to try the last one because you already found this one!

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16 ÷ 8 = 2

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lisabon 2012 [21]

Answer: C: 12-7x

Step-by-step explanation:

This expression is a good example of the difference of two squares, as 144 is the square of 12, while 49x² is the square of 7x.

Any difference of two squares $a^2-b^2$ can be factored into the sum of their square roots times the difference of their square roots $(a+b)(a-b)$ .

Let's factor our expression.

$144-49x^2=(12+7x)(12-7x)$

Out of all the options given, only $12-7x$ is a factor. Hence, option C is correct.

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1 year ago

Calculate the frequency of a wave with a speed of 250m/s and a wavelength of 50m.

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Answer:

<h3>formulas</h3>

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2 years ago

I need help please!

den301095 [7]

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Answer:

f(g(x)) = 2/(x^2 +4x)

Step-by-step explanation:

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Answer:

Step-by-step explanation:

The median is the middle number of the list when put in order from smallest to largest

3 3 4 5 5 5 6 6 6 7 8

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