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notsponge [240]
3 years ago
5

A scale reports a 15-pound weight as weighing 12.375 pounds.

Mathematics
2 answers:
Kruka [31]3 years ago
8 0
B. Accuracy is if it's right or not. Precision is how many decimal places it goes out to. So it is precise but not accurate.
oksano4ka [1.4K]3 years ago
7 0

Answer:

B.the scale is precise but not accurate

Step-by-step explanation:

The answer is :

B.the scale is precise but not accurate

If the scale would have been accurate, then it would have gotten the correct weight.

But it is showing a reasonable difference.

But at the same time, it is showing the reading upto thousandths place, so it means the scale is precise.

Hence, the correct answer is option B.

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<h2>Answer:</h2>

D. \ 408in^2

<h2>Step-by-step explanation:</h2>

This is a square pyramid because it's a solid having a square base. The point up the pyramid is called the apex and is directly above the middle of the square base. The surface area of a solid is the total area of its outer surface. If we unfold this pyramid, we'll get one square and four identical triangles. So the surface are can be calculated as follows:

s=s_{square}+4s_{triangle}

FOR THE SQUARE:

s_{square}=L^2 \\ \\ L=12in \\ \\ s_{square}=12^2=144in^2

FOR THE TRIANGLE:

s_{triangle}=\frac{bh}{2} \\ \\ b=12in \\ h=11in \\ \\ s_{triangle}=\frac{12\times 11}{2}=66in^2

Finally:

s=s_{square}+4s_{triangle} \\ \\ s=144+4(66) \\ \\ s=144+264 \\ \\ \boxed{s=408in^2}

7 0
3 years ago
725 tickets were sold for a game for a total of $1,487.50. If adult tickets sold for $2.50 and children's tickets sold for $1.50
weqwewe [10]

Answer:

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Step-by-step explanation:

Let x represent the number of adult tickets sold. Then 725-x is the number of children's tickets sold, and the total revenue is ...

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  1.00x + 1087.50 = 1487.50 . . . . . eliminate parentheses

  x = 400 . . . . . . . . . . . . . . . . . . . . . subtract 1087.50

There were 400 adult tickets and 325 children's tickets sold.

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3 years ago
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