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crimeas [40]
3 years ago
15

Jamie wants to put tiles on the walls and floor of his room (but not on the ceiling). The length of his room is 10 ft, the width

is 14 ft, and the height is 12 ft. If each tile is 1 ft long and 1 ft wide, how many tiles will Jamie need/
Mathematics
1 answer:
slava [35]3 years ago
8 0

Answer:

Jamie would need 140 tiles.

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Find the measures of the numbered angles
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angle 1 is 90 degrees because of the kite theorem:

THEOREM: If a quadrilateral is a kite, the diagonals are perpendicular.

angle 2 is 58 degrees because 180-90-32=58 degrees

Step-by-step explanation:

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Is 7/11 a irrational number
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Please help on this math question
svetlana [45]

\sqrt{12 {x}^{3} }  =  {12}^{ \frac{1}{2} }  {x}^{ \frac{3}{2} }

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2 years ago
The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there a
Anettt [7]

Answer:

1) The size of the colony after 4 ​days is 6553 mosquitoes

2) After t = 4.9\ days

Step-by-step explanation:

To answer this question you must use the growth formula

N = N_0e ^ {kt}

Where

N_0 is the initial population of mosquitoes = 1000

t is the time in days

k is the growth rate

N is the population according to the number of days

We know that when t = 1 and N_0=1000 then N = 1600

Then we use these values to find k.

1600 = 1000e ^{k(1)}\\\\\frac{1600}{1000} = e ^ k\\\\ln(\frac{1600}{1000}) = k\\\\k = 0.47

Now that we know k we can find the size of the colony after 4 days.

N = 1000e ^ {0.47(4)}\\\\N = 6553\ mosquitoes

To know how long it should take for the population to reach 10,000 mosquitoes we must do N = 10000 and solve for t.

10000 = 1000e ^ {0.47t}\\\\10 = e ^ {0.47t}\\\\ln(10) = 0.47t\\\\t = \frac{ln(10)}{0.47}\\\\t = 4.9\ days

6 0
2 years ago
A map is drawn using a scale of 1cm/80mi
Setler79 [48]

Answer:

B) 3.5cm

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1/80 = n/280

1 * 280 = n * 80

280 = 80n

3.5 = n or n = 3.5

4 0
3 years ago
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