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3 years ago

Tell weather the given value is a solution of the inequality

Mathematics

2 answers:

Iteru [2.4K]3 years ago

7 0

Hello there!

No, the number given is not a solution of the inequality

r - 3 ≤ 9

Let's start by adding 3 to both sides

r - 3 + 3 ≤ 9 + 3

r ≤ 12

I hope this helps. Good luck with your studies~

natta225 [31]3 years ago

4 0

Yes, 8 is a solution

r - 3 ≤ 9; r = 8

plug in 8 to r

(8) - 3 ≤ 9
5 ≤ 9 (true)

hope this helps

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Find all numbers such that three times the number is greater than eight less than the number.

klio [65]

Answer:

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Step-by-step explanation:

Here, assume such number = m

Now, given :

3 times the number = 3 x ( m) = 3 m

8 less than the given number = m - 8

Now, according to the question:

3 times the number > 8 less than the given number

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3 years ago

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guapka [62]

Step-by-step explanation:

$\sin^2 (\frac{\pi}{4} - \alpha) = \frac{1}{2}(1 - \sin 2\alpha)$

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$\dfrac{1 - \cos [2(\frac{\pi}{4} - \alpha)]}{2} = \frac{1}{2}(1 - \sin 2\alpha)$

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on the left side.

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</span>

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