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Serjik [45]
3 years ago
7

Which problem is being modeled on the number line? helppp

Mathematics
2 answers:
Marina86 [1]3 years ago
6 0
4.........................
PIT_PIT [208]3 years ago
3 0

Answer:

4 is

Step-by-step explanation:

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A person gets on and off a bathroom scale four times. The four readings (in pounds) are 148, 151, 150, and 152. Each time after
Ganezh [65]

Answer:

See explanation below

Step-by-step explanation:

Since each time after the person gets off the scale, the reading is 2 lb the person's weight must be near the mean of

148-2, 151-2, 150-2, 152-2; that is to say, near the mean of 146, 149, 148, 150 = (146+149+148+150)/4 = 148.25

We could estimate the uncertainty as <em>the standard error SE </em>

\bf SE=\frac{s}{\sqrt{n}}  

where  

<em>s = standard deviation of the sample </em>

<em>n = 4 sample size. </em>

Computing s:

\bf s=\sqrt{\frac{(146-148.25)^2+(149-148.25)^2+(148-148.25)^2+(150-148.25)^2}{4}}=1.479

So, the uncertainty is 1.479/2 = 0.736

<em>It is not possible to estimate the bias, since it is the difference between the true weight and the mean, but we do not know the true weight. </em>

5 0
2 years ago
The amount of fat, in grams, in granola is proportional to the volume, in cups, of the granola as shown on the graph.
AlekseyPX
4 cups = 18 g
Divide all by 4 to get 1 cup.
1 cup = 18/4
1 cup = 4.5g
4 0
3 years ago
Read 2 more answers
**15 Points!! What is 2 1/2 x 1 1/2, 5.4 x 2 3/4, and 3.1 x 2/7?
Amiraneli [1.4K]
3.75
14.85
0.89
Those are the answers
6 0
3 years ago
Question 7 (Worth 5 points)
svet-max [94.6K]

Answer:

$20.60

Step-by-step explanation:

$25.75 x 20% = $5.15

$25.75 - $5.15 = $20.60

7 0
3 years ago
Read 2 more answers
Simplify the expression 14y +6+3y
umka2103 [35]

Answer:

The simplified version is 17y + 6.

Step-by-step explanation:

14y + 6 + 3y

17y + 6

4 0
3 years ago
Read 2 more answers
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