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pshichka [43]
3 years ago
5

You are testing two scales for accuracy by weighing two different objects. Use the drop-down menus to complete the statements ab

out the scales' accuracy.
Mathematics
2 answers:
Snezhnost [94]3 years ago
8 0

Answer:

<em>Because the object on scale 1 weighs </em><em><u>more</u></em><em> than the object on scale 2, each pound of error results in a </em><em><u>lesser</u></em><em> percent error. Scale 1 was</em><em><u> 10</u></em><em> pounds off and scale 2 was </em><em><u>3</u></em><em> pounds off, so scale 1 was </em><em><u>10%</u></em><em> off and scale 2 was </em><em><u>12%</u></em><em> off.</em>

The object on scale 1 weighs 100 pounds and the object on scale 2 weighs 25 pounds so the object on scale 1 weighs more than scale 2.

Scale 1 error margin:                                            Scale 2 error margin:

= Actual weight - measured weight                    = 25 - 22

= 100 - 90                                                              = 3 pounds

= 10 pounds

Scale 1 error percentage:                                     Scale 2 error percentage:

= Error margin/ Actual weight                              = 3/25

= 10/100                                                                 = 12%

= 10%

<em>Scale 1 object has less percent error. </em>

FinnZ [79.3K]3 years ago
4 0

Answer:

Fill in Blanks in Caps and Numbers are in ()

Because the object on scale 1 weighs (MORE) than the object on scale 2, each pound of error results in a (LESSER) percent error. Scale 1 was (10) pounds off and scale 2 was (3) pounds off, so scale 1 was (10)% off and scale 2 was (12)% off

Step-by-step explanation:

I got it right on TTM so trustt me ;)

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3 years ago
What's is algebra in mathematics
e-lub [12.9K]
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5 0
3 years ago
Find how many values of X does f(x)=5? Illustrate on the graph.
Fantom [35]

Answer:

Step-by-step explanation:

The question is saying "How many x values are there when y = 5?"

The answer is 2.

When x ≈ 1 and when x = ≈ 2

3 0
3 years ago
If X is a random variable with expected value 2, then the expected value of 5X will be:______
rewona [7]

Answer:

E(5X) = 10

Step-by-step explanation:

The expected value of a random variable X is denoted as; E(X)

Now we are told it's equal to 2.

Thus;

E(X) = 2

Now, we want to find the expected value of 5X

We will use the principle from expected value derivations below;

E(cX + d) = cE(X) + d

Also;

If E(X) = z

Then;

E(aX) will give; aE(X) = az

From our question, we have;

E(X) = 2

Thus;

E(5X) = 5E(X) = 5 × 2 = 10

5 0
3 years ago
Real number root for V-49
Sauron [17]

Step-by-step explanation:

there is no real number solution for the square root of a negative number.

a sqare root multiplied by itself had to deliver exactly the number inside the square root.

so for sqrt(-49), what can be the answer ?

which number multiplied by itself gives -49 ?

it any negative number at that.

because

a × a = a²

and

-a × -a = a² but definitely not -a².

we get a negative number only, when we multiply a positive number with a negative number or vice versa.

the only solution is complex or imaginary (based on the imaginary number i):

i² = -1

i = sqrt(-1)

so, sqrt(-49) = sqrt(49 × -1) = 7×sqrt(-1) = 7i

but again, no real solution.

5 0
2 years ago
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