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blsea [12.9K]
4 years ago
12

Let u = <-8, -9>. Find 7u.

Mathematics
1 answer:
Tcecarenko [31]4 years ago
5 0

7 u will be greater than -56 if you is greater than - 8

and seven you will be lesser than -63 if you is lesser than minus 9

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Which expression equals a number that is NOT a rational number?
rewona [7]
  • \frac{3\pi.3^3}{7}  is not included as a rational number !

<u>Step-by-step explanation:</u>

Here we have , following expressions & we need to identify which of the following is not a rational number . Let's find out:

We know that , Rational Number : A number which can be expressed in form of p/q , where q is not equal to zero !

Here Expressions are:

  • \frac{3\pi . 3^3}{7\pi}  :

Let's evaluate this expression

⇒ \frac{3(\pi) ( 3^3)}{7(\pi)}

⇒ \frac{3^4}{7}

Therefore , It is a rational number ! .

  • \frac{-18}{5} :

Let's evaluate this expression

⇒ \frac{-18}{5}

Therefore , It is a rational number ! .

  • \frac{5}{3-7-9} :

Let's evaluate this expression

⇒ \frac{5}{3-16}

⇒ \frac{-5}{13}

Therefore , It is a rational number ! .

  • \frac{3\pi.3^3}{7} :

Let's evaluate this expression

⇒ \frac{3\pi.3^3}{7}

⇒ \frac{\pi.3^4}{7}

Therefore , It is not a rational number , as pi is included ! .

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3 years ago
Read 2 more answers
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Answer:

C

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4 years ago
A metal measuring tape expands when the temperature goes above 50°F. For every
den301095 [7]

Answer:

The answer is 0.0096

Step-by-step explanation:

which is 0.00032 multiplyed by 30

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