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3 years ago

It takes 2 hours for a culture of 1 bacterium to double in number. How much bacteria will grow in 10 hours?

Mathematics

2 answers:

Archy [21]3 years ago

8 0

A culture of 5 bacterium

Sliva [168]3 years ago

8 0

5 bacteria ok. hope it helps

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Which set of side lengths can form a triangle? a 6cm, 8cm, 18cm b 6cm, 8cm, 10cm c 6cm, 7cm, 14cm d 6cm, 7cm, 20cm

kogti [31]

Sum of two sides can not be smaller than third side and difference of two sides cannot be larger then third side.

Answer is B.

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3 years ago

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3×3 - 3 - 3÷3 - 3 - =

daser333 [38]

(3x3) -3- (3/3) -3
9-3-1-3
6-4
2

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3 years ago

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Evaluate (distributive property)

OLEGan [10]

Answer:

Step-by-step explanation:

If A, B and C are integers, according to distributive property;

A(B+C) = AB+AB

A is distributed over B and C

Given

9×6 = 5 sixes +4 sixes

5 sixes = 5(6) =30

4 sixes = 4(6) =24

9×6 = 5(6)+4(6)

9×6 = 30+24

9×6 = 54

Hence ? =5,?? =24 ??? = 54

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3 years ago

Twenty toothpicks, each 6 cm long, form a figure consisting of six equilateral triangles and a rectangle as shown. What is the t

Roman55 [17]

The total area of the figure is 139.20 square centimeters

Areas

The area of a shape is the amount of space it occupies

<h3>Composite figure</h3>

The figure (see attachment) is a composite figure, and the total area is the sum of the areas of each shape that makes up the complete figure

The shape has 6 equilateral triangles, each of which has an area of:

$A_1 = \sqrt{\frac{3s^2}{4}}$

Where:

$s = 6$ --- the length of each toothpick

The area of the rectangle is then represented as:

$A_2 =3s \times s$

$A_2 =3s^2$

So, the total area of the figure is:

$Total = 6A_1 + A_2$

This gives

$Total =6 \times \sqrt{\frac{3s^2}{4}} + 3s^2$

Substitute 6 for s

$Total =6 \times \sqrt{\frac{3(6)^2}{4}} + 3(6)^2$

$Total =6 \times \sqrt{27} + 108$

$Total =6 \times 5.20+ 108$

$Total =139.20$

Hence, the total area of the figure is 139.20 square centimeters