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tester [92]
2 years ago
13

Help if correct will give brainless

Mathematics
1 answer:
Jobisdone [24]2 years ago
7 0
This is Very good correct
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What is the area of the regular pentagon below?
wolverine [178]

Answer:

<em><u>2</u></em><em><u>1</u></em><em><u>y</u></em><em><u>d</u></em><em><u>^</u></em><em><u>2</u></em>

Step-by-step explanation:

join the centre to all the vertex,

since this figure is of regular pentagon, it's will form 5 equal triangle of equal area!

now area of one such triangle is

1/2 ×base ×height

=1/2 ×3.5x2.4 (yd^2)

=4.2 yd^2

now the pentagon is sum of 5 such equal triangle,so it's are will be

5×4.2 (yd^2)

=21 yd^2

✌️:)

7 0
3 years ago
There is a drought and the oak tree population is decreasing at the rate of 5% per year. If the population continues to decrease
amid [387]
In approximately 10 years the oak tree population will be 50% of what it is.  because 5 x 10 = 50. hope this helps :)

5 0
3 years ago
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In a 5/6 pound mixture of sand and gravel, 1/4 pound is gravel.
USPshnik [31]
<span>Total mass of mixture is given as 5/6 pound, in which 1/4 pound is gravel. Amount of sand in the mixture will be 5/6 - 1/4 = 7/12 So, the ratio of sand to that of gravel in given mixture is 7/12:1/4 = 7:3. i.e every 10 parts of mixture contain 7 parts of sand and 3 parts of gravel. If we are given 1-pound of same mixture, it will contain 1 * 3/10 pound gravel, i.e. 0.3 pound.</span>
8 0
3 years ago
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42=16<br> log4<br> =2 <br> please help
Kitty [74]

Answer:

log = 16

Step-by-step explanation:

The logarithm of x with base b is defined as

logbx=y if and only if by=x

where x>0, b>0, and b≠1.

3 0
3 years ago
Suppose the radius of a circle is 8 what is the diameter
sleet_krkn [62]
The diameter is 16 its double
8 0
3 years ago
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