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Fed [463]
3 years ago
10

7b³-9b=10 whats the answer for this

Mathematics
1 answer:
Svet_ta [14]3 years ago
6 0

Answer:

B just took it :)

Step-by-step explanation:

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A culture of bacteria has an initial population of 41000 bacteria and doubles every 5 hours. Using the formula P t = P 0 ⋅ 2 t d
Crazy boy [7]

Answer:

Population of bacteria in culture after 14 hours is 285541.

Step-by-step explanation:

We are given with P_{t} =P_{0}(2)^{\frac{d}{t}}

Here initial population is 41000 , t=5 and d=14

Plug in these values into the formula

P_{14} =41000(2)^{\frac{14}{5} }

Simplify

P_{14}= 41000(2)^{2.8}

     =41000(6.9644)

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To the nearest whole number is 285541.

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3 years ago
_______ will produce a rational answer when multiplied by 0.9
harkovskaia [24]

Answer:

10

Step-by-step explanation:

A rational number is 9.

When you multiply 0.9x10 you get the sum of 9.

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I hope this helps you understand :)

4 0
3 years ago
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Approximate the square root to the nearest whole number 142
slamgirl [31]
The square root of 142 is 11.916
7 0
2 years ago
One side of a triangle is 2 times the second side. The third side is 5 ft longer than the second side. The perimeter of a triang
TiliK225 [7]

Answer:

The length of each side of triangle are 19 ft, 24 ft and 38 ft.

Step-by-step explanation:

Let the length of second side be x.

Now given:

Length of first side is 2 times length of second side.

Length of first side = 2x

Also, Length of third side is 5 ft longer than the second side.

Length of third side = 5+x

Perimeter of triangle = 81 ft.

We need to find the length of each side.

Now perimeter of triangle is sum of all three sides of triangle.

Therefore;

Perimeter of triangle =  Length of first side + length of second side + Length of third side.

2x+x+5+x=81 ft\\4x+5=81ft\\4x= 81 -5 ft\\4x = 76ft\\x= \frac{76}{4} = 19 ft

Length of Second Side = 19 ft.

Length of First side = 2x= 2\times19 = 38 ft

Length of Third side = 5+x= 5+19=24ft

Hence the Length of triangles are 19 ft,38 ft,24 ft.

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3 years ago
Find the geometric mean of 8 and 17
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Oh gosh oh I thought had the president of the
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2 years ago
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