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rusak2 [61]
3 years ago
9

Brandon buys a radio for $44.57 in a state where the sales tax is 7%.

Mathematics
1 answer:
grigory [225]3 years ago
8 0

Answer:

$3.12

Step-by-step explanation:

44.57 x 0.07 = 3.12

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I need to find the volume for number 10
kumpel [21]

Using the diagonal dimension and the height we can solve for the diameter of the cylinder using the Pythagorean theorem.


x^2 + 9.5^2 = 19.3^2

x^2 + 90.25 = 372.49

x^2 = 372.49 - 90.25

x^2 = 282.24

x = √282.24

x = 16.8


Now we know the diamteer and height, we can calculate the volume using the formula V = pi * r^2 * h

r = 1/2 the diameter = 16.8/2 = 8.4

using 3.14 for pi

Volume = 3.14 * 8.4^2 * 9.5

V = 3.14 * 70.56 * 9.5

v = 3.14 * 670.32

v = 2104.8 cubic meters


5 0
3 years ago
A circular pond 20m in diameter is surrounded by a gravel path 5m wide. The path is to be replaced by a brick walk costing $30 p
Bezzdna [24]
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8 0
3 years ago
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What is the diameter of a hemisphere with a volume of 8514 cm', to the nearest
Mandarinka [93]

Answer:

32.0 cm

Step-by-step explanation:

volume of a hemisphere = (2/3)πr3

r = cube root (Volume * 3/2 * 1/π )

r = cube root ( 8514 * 3/2 * 1/π)

r = 15.96

in the nearest tenth r = 16.0 cm

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2 years ago
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I only need help with the second part of this question. please can you help?
matrenka [14]

13,822 to one significant figure is 10,000

623 to one significant figure is 600

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10,000 times 600 = 6,000,000

6,000,000/10 = 600,000

4 0
3 years ago
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Archy [21]

Answer:

Step-by-step explanation:

when you draw a line through both it show that the are parallel and will never touch.

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