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zhuklara [117]
3 years ago
7

The proper natation for a normal distribution with a mean of 250 and a standard deviation of 25 is?

Mathematics
1 answer:
Zolol [24]3 years ago
5 0
N(250,25)
That's all it is
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Find the greatest rational number r such that the ratios 8/15 ÷r and 18/35 ÷r are whole numbers.
Akimi4 [234]

Answer:

  2/105

Step-by-step explanation:

"r" is the greatest common divisor (GCD) of the two fractions. It can be found using Euclid's algorithm in the usual way.

  (8/15) - (18/35) = 56/105 - 54/105 = 2/105 . . . . . this is (8/15) mod (18/35)

We can see that the next step, division of 54/105 by 2/105, will produce a remainder of 0, so the GCD is 2/105.

The greatest rational number r is 2/105.

_____

<em>Check</em>

The ratios are (8/15)/(2/105) = 28; (18/35)/(2/105) = 27. These whole numbers are relatively prime, so there is no larger r than the one we found.

5 0
3 years ago
Please help don’t get it
Romashka-Z-Leto [24]

Answer:

A

Step-by-step explanation:

One complete turn is 1 perimeter (aka circumference).

We have to find the length it turned, hence, its circumference.

The formula for circumference (C) of a circle is:

C=2\pi r

Where r is the radius

The radius is HALF of diameter. Given diameter is 250, the radius is:

r = 250/2 = 125 feet

Now, substituting in formula we have:

C=2\pi r\\C=2\pi (125)\\C=250\pi\\C=785.4

So, it turned 785.4 feet with 1 rotation.

The correct answer is A

4 0
3 years ago
Area= 7 1/4 x 11 2/3
Vesna [10]

Answer:

Area=84.5833333333

Step-by-step explanation:

7 0
3 years ago
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A contractor bought 7.6 ft squared of sheet metal. She has used 4.9 ft squared so far and has ​$43.20 worth of sheet metal remai
Karo-lina-s [1.5K]

Answer:

$16 per square foot

Step-by-step explanation:

6 0
3 years ago
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Solve this question. Check your solution.<br> -5 + s &gt; -1
HACTEHA [7]
<span><span><span>−5</span>+s</span>><span>−1

</span></span>Step 1: Simplify both sides of the inequality.

<span><span>s−5</span>><span>−1

</span></span>Step 2: Add 5 to both sides.

<span><span><span>s−5</span>+5</span>><span><span>−1</span>+5
</span></span><span>s>4

</span>Answer:<span>s><span>4

hope this helps!</span></span>
3 0
3 years ago
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