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3 years ago

A digital scale reports a 10kg weight as weighing 8.975kg. which of the following is true?

1 answer:

6 0

That question is accompanied by these answer choices:

<span>A. The scale is accurate but not precise.
B. The scale is precise but not accurate.
C. The scale is neither precise nor accurate.
D. The scale is both accurate and precise.

Then you need to distinguish between accuracy and precision.

Accuracy refers to the closeness of the measure to the real value, while precision, in this case, refers to the level of significant figures that the sacle report.

The fact that the scale reports the number with 4 significant figures means that it is very precise, but the fact that the result is not so close to the real value as the number of significan figures pretend to be, means that the scale is not accurate.

So, the answer is that the scale is precise but not accurate (the option B).
</span>

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4 years ago

A function has a discriminant of -3. When graphed , how many -intercepts does it have?

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3 years ago

Can somebody help me with this <br><br> What is the value of P

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Answer:

p=7

∠BRG=49

Step-by-step explanation:

∠BRG and ∠YRG are on a straight line together. Therefore, they are supplementary and add to 180 degrees.

∠BRG+∠YRG=180

We know that ∠BRG is 7p and ∠YRG is 131 degrees. Substitute 7p in for ∠BRG and 131 for ∠YRG.

7p+131=180

We want to find out what p is. In order to do that, we have to get p by itself. First, subtract 131 from both sides.

7p+131-131=180-131

7p=49

Next, divide both sides by 7.

7p/7=49/7

p=49/7

p=7

Now, we have to find what ∠BRG is.

∠BRG=7p

We know that p=7, so substitute p in for 7

∠BRG=7*7

∠BRG=49

So, p=7 and ∠BRG=49

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