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3 years ago

A scientist is studying a form of bacteria that doubles every hour. if the petri dish starts with 2 grams of bacteria

Mathematics

2 answers:

Oliga [24]3 years ago

8 0

Answer:

D) -y=2*2^x

Hope this helps :)

strojnjashka [21]3 years ago

3 0

Answer:

b = 2x²

Step-by-step explanation:

Let the number of bacteria = x

Every hour, the number of bacteria doubles itself, = x * x = x²

But the bacteria started with 2g,

The number of bacteria present is equal to

2 * x² = 2x².

At every hour, the growth of the bacteria is at 2x²

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a. Fill in the midpoint of each class in the column provided. b. Enter the midpoints in L1 and the frequencies in L2, and use 1-

Tresset [83]

Answer:

$\begin{array}{ccc}{Midpoint} & {Class} & {Frequency} & {64} & {63-65} & {1} & {67} & {66-68} & {11} & {70} & {69-71} & {8} &{73} & {72-74} & {7} & {76} & {75-77} & {3} & {79} & {78-80} & {1}\ \end{array}$

Using the frequency distribution, I found the mean height to be 70.2903 with a standard deviation of 3.5795

Step-by-step explanation:

Given

See attachment for class

Solving (a): Fill the midpoint of each class.

Midpoint (M) is calculated as:

$M = \frac{1}{2}(Lower + Upper)$

Where

$Lower \to$ Lower class interval

$Upper \to$ Upper class interval

So, we have:

Class 63-65:

$M = \frac{1}{2}(63 + 65) = 64$

Class 66 - 68:

$M = \frac{1}{2}(66 + 68) = 67$

When the computation is completed, the frequency distribution will be:

Solving (b): Mean and standard deviation using 1-VarStats

Using 1-VarStats, the solution is:

$\bar x = 70.2903$

$\sigma = 3.5795$

See attachment for result of 1-VarStats

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3 years ago

Carlos has eight tickets. Carlos has 8 fewer tickets then Etta. How many tickets does Etta have?

aleksley [76]

Answer:

Step-by-step explanation:

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3 years ago

How do you solve the equation 8-5w= -37

loris [4]

Answer:

w=25/4=6.50

Step-by-step explanation:

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3 years ago

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5-10/8= 3 6/8 4 6/8 3 2/8 6 2/8

Oksi-84 [34.3K]

Answer:

3 6/8

Step-by-step explanation:

5 = 5

10/8 = 1 2/8

5 - 1 = 4

4 - 2/8 = 3 6/8

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You walk 2 miles in 12

uranmaximum [27]

2m = 25/2
m= 25/2 divided by 2
m= 25/4
3m= 25/4 x 3
3m= 75/4
so she does 3 miles in 18 3/4 hours

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3 years ago

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