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3 years ago

13

bacteria in a culture increased Exponentially. If the the number of bacteria doubles in 3 hours in how many hours will the numbe

r of bacteria triple?

1 answer:

Elis [28]3 years ago

7 0

6 hours because
double- 3 hours
triple- 6 hours

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The plumber wants to cut a 24-ft length of pipe into three sec- tions. The largest piece should be twice the length of the middl

lisabon 2012 [21]

Answer: Length of smallest piece is 3.43 feet.

Length of middle piece is 2× 3.43 = 6.86 feet

Length of largest piece is 4× 3.43 = 13.72 feet.

Step-by-step explanation:

Let the length of smallest piece be x

According to question, the middle piece is twice the length of the smallest piece.

So, length of middle piece be 2x

According to question, the largest piece is twice the length of the middle piece.

So, length of largest piece be 2(2x)=4x

Total length of pipe = 24 ft

So, it becomes,

$x+2x+4x=24\\\\7x=24\\\\x=\dfrac{24}{7}\\\\x=3.43\ ft$

Length of smallest piece is 3.43 feet.

Length of middle piece is 2× 3.43 = 6.86 feet

Length of largest piece is 4× 3.43 = 13.72 feet

4 0

3 years ago

What is the answer for 2(4x-12)+1=9

sweet [91]

Answer:

x = 4

Step-by-step explanation:

2(4x-12)=8

4x-12=4

4x=16

x=4

8 0

2 years ago

Will give BRAINLIEST if answered

andrew-mc [135]

Answer:

I think its c

Step-by-step explanation:

because a and b are integer and b=/0

i am only thinking not sure

don't report my answer

3 0

3 years ago

Read 2 more answers

1.18. A fish tank has a base, B, with an area, in square inches, modeled by B(x) = 2x + 6x + 4.

Alekssandra [29.7K]

Answer:

The volume of fish tank is $V(x)=2x^3+12x^2+22x+12$

Step-by-step explanation:

Area of Base of fish tank = $Length \times Breadth$

We are given that A fish tank has a base, B, with an area, in square inches, modeled by $B(x) = 2x^2 + 6x + 4.$

So, $Length \times Breadth =2x^2 + 6x + 4.$

Height of tank = x+3

Volume of tank = $Length \times Breadth \times Height$

So, Volume of tank = $(2x^2 + 6x + 4)(x+3)$

Volume of Tank = $2x^3+6x^2+4x+6x^2+18x+12=2x^3+12x^2+22x+12$

Hence The volume of fish tank is $V(x)=2x^3+12x^2+22x+12$

4 0

3 years ago

A p-value of .06 is a significant finding. true or false

Mariulka [41]

Its true .

A p-value less than 0.05 (typically ≤ 0.05) is statistically significant. It indicates strong evidence against the null hypothesis, as there is less than a 5% probability the null is correct

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3 years ago

Read 2 more answers