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riadik2000 [5.3K]
3 years ago
11

A bacteria culture is grown with a population of 45 million cells and kept under observation the cell population is found to dou

ble every hour what will the population be after four hour
Mathematics
1 answer:
frosja888 [35]3 years ago
4 0
The answer is 360 million or 720 million cells after 4 hours of doubling.
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Which rule is an example of rigid transformation?
GalinKa [24]

We know that

Rigid transformation:

A rigid transformation (also called an isometry) is a transformation of the plane that preserves length.

Reflections, translations, rotations, and combinations of these three transformations are "rigid transformations"

so, it's length must be preserved

now, we will check each option

option-A:

we have (x,3y)

y-value changes but x-value will remain same

It changes length

so, this is not rigid transformation

option-B:

we have (3x,y)

x-value changes but y-value will remain same

It changes length

so, this is not rigid transformation

option-C:

(2x, y+2)

It changes length of x-value

but it is only shifting y-value

so, it changes length

so, this is not rigid transformation

option-D:

Both shifts values

but it's length will always be same

so, this is rigid transformation..............Answer

6 0
3 years ago
In the isosceles trapezoid below, x = [ ? ]° 5x+15° 7x-11°​
omeli [17]

Answer:

yes

if you solve the equation,

5x+15=7x-11

26=2x

x=26/2=13

Step-by-step explanation:

3 0
3 years ago
Which whole number is closest to the value of square root of 54?
Blababa [14]
The answer for this problem is 7
3 0
3 years ago
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If f(x) = 3x - 2 and g(x) = 2x + 1, find (f - g)(x)
morpeh [17]

Answer:

(f-g)(x) = x-3

Step-by-step explanation:

Given

f(x) = 3x-2

and

g(x) = 2x+1

We have to find (f-g)(x)

So,

(f-g)(x) = f(x)-g(x)

= 3x-2 - (2x+1)

= 3x-2-2x-1

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Hence,

(f-g)(x) = x-3

6 0
3 years ago
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Vlad1618 [11]

The area of a rectangle is given by the product of its dimensions.

If this rectangle has a length of 2x + 7 and a width of x + 4, its area is:

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The perimeter is the sum of all side lengths, so we have:

\begin{gathered} \text{Perimeter}=(2x+7)+(x+4)+(2x+7)+(x+4) \\ \text{Perimeter}=6x+22 \end{gathered}

6 0
1 year ago
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