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2 years ago

There are 5 bacteria in a petri dish at the start of an experiment. This type of bacteria doubles every 20 minutes.

Mathematics

1 answer:

Elodia [21]2 years ago

7 0

Answer:

20480

Step-by-step explanation:

4hr = 12 doubles

5 * 2 ^ 12 = 20480

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Bateman's jar of marbles contains 8 blue marbles. 6 yellow marbles, and 9 tiger eyes. Bateman pulls a blue marble without puttin

xeze [42]

Answer: no

Step-by-step explanation:

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3 years ago

Which graph represents the solution set of the inequality Negative 14.5 less-than x?

Natalka [10]

Answer:

I think Its C

Step-by-step explanation:

I did it on unit test so idk if its right or wrong

4 0

3 years ago

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If x = 82°, find the measures of angles 1, 2, and 3

otez555 [7]

Answer:

Step-by-step explanation:

x(o) + 1(o) = 180(o)

∠2° = ∠x°

∠1° = ∠3°

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2 years ago

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Complete this equation 2 2/3 +4/5= 40/? + 12/? = ?/?

OlgaM077 [116]

Answer:(7/8 - 4/5)^2 = 9

1600

= 0.005625

Step-by-step explanation:

Subtract: 7

- 4

= 7 · 5

8 · 5

- 4 · 8

5 · 8

= 35

- 32

= 35 - 32

= 3

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of the both denominators - LCM(8, 5) = 40. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 8 × 5 = 40. In the next intermediate step the fraction result cannot be further simplified by cancelling.

In words - seven eighths minus four fifths = three fortieths.

Exponentiation: the result of step No. 1 ^ 2 = (3

) ^ 2 = 32

402

= 9

1600

In words - three fortieths squared = nine one-thousand six-hundredths.

6 0

2 years ago

In a certain lottery, you must select 5 numbers (in any order) out of 26 correctly to win. a. How many ways can 5 numbers be

Step2247 [10]

Answer:

a. 7893600

$b.\ \dfrac{1}{26}$

Step-by-step explanation:

Given that there are 26 numbers out of which 5 numbers are to be chosen.

Here repetition is not allowed.

For each of the 5 cases, the total number of possibilities will keep on decreasing by 1.

1st case, number of possibilities = 26

2nd case, number of possibilities = 25

3rd case, number of possibilities = 24

4th case, number of possibilities = 23

5th case, number of possibilities = 22

a. Total number of possibilities = 26 $\times$ 25 $\times$ 24 $\times$ 23 $\times$ 22 = <em>7893600</em>

b. Probability of winning by choosing one number:

Formula for probability of an event E can be observed as: $P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

Number of favorable cases = 1

Total number of cases = 26

So, required probability:

$P(E) = \dfrac{1}{26}$

So, the answers are:

a. 7893600

$b.\ \dfrac{1}{26}$

5 0

3 years ago