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3 years ago

What is the absolute value of 1/4

Mathematics

1 answer:

VashaNatasha [74]3 years ago

4 0

Answer:

Step-by-step explanation:

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Lynn has 4 stacks of quarters.There are 8 quarters in each stack. How many quarters does Lynn have?

aev [14]

Answer:

Step-by-step explanation:

4 x 8 = 32

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3 years ago

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What is the area of the rhombus

Sindrei [870]

Answer:

Step-by-step explanation:

area = length of the base x height

height = 9cm

length of the base = 11cm

area = 9 X 11

area = 99 $cm^{2}$

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3 years ago

What is four and one half x two and five sixths

marshall27 [118]

Answer:

12.75

Step-by-step explanation:

If you multiply 4.5 by [2+(5/6)] you get 12.75

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4 years ago

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PSYCHO15rus [73]

The amount of the tip is approximately $7.
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4 years ago

The radius of a circular disk is given as 21 cm with a maximum error in measurement of 0.2 cm.

ella [17]

Answer:

a) $\Delta A \approx 26.389\,cm^{2}$ , b) $r_{A} \approx 0.019$ , c) $\delta = 1.9\,\%$

Step-by-step explanation:

a) The area of the circular disk is modelled after this expression:

$A = \pi \cdot r^{2}$

The total differential is given by the following formula:

$\Delta A = 2\pi r \cdot \Delta r$

The maximum absolute error in the calculated area of the disk is:

$\Delta A = 2\pi \cdot (21\,cm)\cdot (0.2\,cm)$

$\Delta A \approx 26.389\,cm^{2}$

b) The relative error is given by:

$r_{A} = \frac{\Delta A}{A}$

$r_{A} = \frac{26.389\,cm^{2}}{\pi \cdot (21\,cm)^{2}}$

$r_{A} \approx 0.019$

c) The percentage error is:

$\delta = r_{A}\times 100\,\%$

$\delta = 0.019 \times 100\,\%$

$\delta = 1.9\,\%$

3 0

3 years ago