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____ [38]
3 years ago
10

WILL GIVE BEST RATING!!!!

Mathematics
2 answers:
stich3 [128]3 years ago
5 0

(6a*5) + (6a*d)

30a + 6ad

30a + (6a*d)

So, 1, 2 and 4 are correct!

UkoKoshka [18]3 years ago
3 0
answers correct :
(6a*5) + (6a*d)
30a + 6ad
30a + (6a*d
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In sunlight, a vertical stick has a height of 4 ft and casts a shadow 2 ft long at the same time that a nearby tree casts a shad
marshall27 [118]
Remark
Make up a proportion that relates the tree and its properties to the stick and its properties.

Givens
Stick height (s_h) = 4
Stick shadow(s_s) = 2
Tree shadow = t_s = 18
Tree height = x

Formula
s_h / s_s = x / t_s

Substitute and solve.
4/2 = x / 18  Cross multiply
4*18 = 2 * x
72 = 2x        Divide by 2
72/2 = x       
x = 36

The height of the tree is 36 feet.     
6 0
3 years ago
The sum of the angle measures in a 21-gon is
Dominik [7]

Answer:

180

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6 0
3 years ago
Of the 6 people attending a seminar, 3 have red hair.
marin [14]

Answer:

1/2

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Total -- 6 people

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Therefore, the answer is 1/2

3 0
3 years ago
Mike hiked to a lake in 4.5 hours at an average rate of 4 1/5 miles per hour. Pedro hiked the same distance at a rate of 4 3/5 m
ExtremeBDS [4]

Answer:

distance = rate x time

3 and 1/5 = 3.2 and 3 and 3/5 = 3.6

distance = 3.2 x 4.5 = 14.4

14.4 = 3.6 x T

T = 14.4 / 3.6 = 4 <--- Pedro's time

4 0
2 years ago
Audrey mowed 12 lawns in 9 hours. What was her rate of mowing in hours per lawn?
horsena [70]
12 lawns/9 hours = 1.33 lawns per hour
6 0
2 years ago
Read 2 more answers
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