3 years ago

What is 0.472727272727272?

Mathematics

2 answers:

Shalnov [3]3 years ago

4 0

What is your question asking???

Brums [2.3K]3 years ago

4 0

A decimal number????????????

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Leah mowed 5 lawns in 4 hours.What was her rate of mowing in lawns per hour?

Kazeer [188]

Answer:

her rate for mowing in lawns per hour is 20 I think. If it's wrong them I'm sorry :(

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3 years ago

Two points have the coordinates P (6, -3,9) and Q (3, -6, -3). A point R divides line PQ internally in the ratio 1:2. The positi

sweet [91]

(a) i. See comment...

(a) ii. We have

$\vec p = 6\,\vec\imath - 3\,\vec\jmath + 9\,\vec k$

and

$\vec q = 3\,\vec\imath - 6\,\vec\jmath - 3\,\vec k$

(b) We can parameterize the line segment from P to Q by the vector function

$\vec r(t) = (1-t) \vec p + t \vec q = (6-3t) \, \vec\imath + (-3-3t) \,\vec\jmath + (9-6t) \,\vec k$

with $0\le t\le1$ . The point R is located 1/3 of the way along this line segment, i.e. at $t=\frac13$ , so its position vector is

$\vec r\left(\dfrac13\right) = 5\,\vec\imath -4\,\vec\jmath + 7\,\vec k$

and hence its coordinates are $\boxed{(5,-4,7)}$ .

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2 years ago

find the area of the circle (test grade due in 30 min) use 3.14. round your answer to the nearest hundredth.

DENIUS [597]

Answer:

πr²

992.25

Step-by-step explanation:

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3 years ago

A vacuum cleaner is priced at $135. The sales tax rate is 8%. What is the amount of sales tax in dollars and cents?

wlad13 [49]

Answer:

$10.80

Step-by-step explanation:

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3 years ago

On a DVD, information is stored on bumps that spiral around the disk. There are 73,000 ridges (with bumps) and 73,000 valleys (w

Juli2301 [7.4K]

Answer:

I pretty sure it's 8cm.

Step-by-step explanation:

I multiplied 73,000 by 0.000074, which resulted in 5.402.
Then, I multiplied 73,000 by 0.000032, which resulted in 2.336.
I added the products together, which gave a sum of 7.738.
Then I rounded to the nearest whole number, which is 8, because the tenth in the decimal (.7) rounds up because it is >4.

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3 years ago