a culture started with 2000 bacteria after 6 hours it grew to 2400 bacteria how many bacteria will grow after 16 hours

Answers

Answer 1

Answer: started at 2000....after 6 hrs it grew to 2400...that means in 6 hrs, it grew 400.
6/400 = 16/x ....6 hrs to 400 = 16 hrs to x
this is a proportion, so we cross multiply
(6)(x) = (400)(16)
6x = 6400
x = 6400/6
x = 1066.67 <==

Answer 2

Answer:

On Plato, the answer is 3253.

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Solve 4(x + 1) = 4x + 4.

Answers

The answer will be 0.
4x+4=4x+4
=0

Answer: 0

Step-by-step explanation: 4x+1=4x+4

-4x. -4x

Select two numbers which have an absolute value that is greater then the absolute value of 4-1/4

Answers

Answer:

A.) -5. E.) 6 hope I could help

Which shows the factored form of x2 – 12x – 45?(x + 3)(x – 15)
(x – 3)(x – 15)
(x + 3)(x + 15)
(x – 3)(x + 15)

Answers

Hi!

(x+a)·(x+b) = x²+xa+xb+ab = x²-12x-45

x² = x²
xa+xb = (a+b)x = -12x ⇒ (a+b) = -12
ab = -45

When (a+b) = -12 and ab = -45?

+3-15 = -12 and (+3)(-15) = -45
-3-15 = -18 and (-3)(-15) = +45
+3+15 = +18 and (+3)(+15) = +45
-3+15 = +12 and (-3+15) = -45

Answer:

(x+3)(x-15)

Indica and jean begin their hike at 10 am. they plan to hike fromthe 2.4 mile marker to the 8.1 mile marker. they plan to hike an average speed of 3 miles per hour. will they reach the 8.1 marker before noon? explain your reasoning.

Answers

Yes they should reach the 8.1 mile marker by noon
2 hours equals 6 miles 2.4+6=8.4
if they kept walking for a full 2 hours they would reach the 8.4 mile marker

Find the absolute value of each rational number |3.7|

Answers

$|a|=a \hbox{ if } a \geq 0 \n|a|=-a \hbox{ if } a \leq 0 \n \n|3.7|=3.7$

The correct answer is:

3.7

Explanation:

Absolute value is the distance a number is from 0. The number 3.7 is 3.7 units away from 0 on a number line; this means the absolute value is 3.7.

For a button to fit through its buttonhole the hole needs to be size of the buttons diameter. What size butte hole is needed for a button with a circumference of 7.38 centimeters (use the value of 3.14 to represent pi.) HELP ME PLEAS

Answers

circumference = 2πr

diameter = 2 r

7.38 = 2 r (3.14)

7.38/3.14 = 2 r

2 r = 2.35 cen.

diameter needs to be 2.35 cen.

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Compare the numbers √11 and 3.7. Use the symbols <,>,or=.

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