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xz_007 [3.2K]
3 years ago
11

Multiplying by 0.21 is the same as increasing by _____%.

Mathematics
1 answer:
Irina-Kira [14]3 years ago
4 0

Answer:

20%

Step-by-step explanation:

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How do you do function machines?
timurjin [86]
Well you are going to need a rule or formula like x + 6 or 3 (x) + 2

Example:

Input x + 6 Output
2 2+ 6 8
4 4+6 10
6 6+6 12


Hope this helps sorry if it doesn’t
7 0
3 years ago
Find the volume of this figure in cubic centimeters.
tankabanditka [31]

Answer:

7,680

Step-by-step explanation:

6 x 4 x 4 x 4 x 5 x 12 = 23040

23040/3 = 7,680

7 0
3 years ago
(1 point) Consider n=20 independent flips of a fair coin. Say that a changeover occurs whenever an outcome differs from the one
77julia77 [94]

Answer:

9.5

Step-by-step explanation:

There is no changeover in the first throw. The probability of each changeover is 1/2 and it doesnt depend on the other changeovers. The only thing that modifies each experiment is the result of the previous flip, but regardless of weather it was tails or heads, the probability will always be 1/2.

Since the coin is flipped 20 times and the first time there is no changeover, there are a total of 19 experiments. All of them independent and with probability 1/2. Therefore, the total amount of changeovers for 20 flips is a random variable with distribution Binomial B(19,0.5), the expected value of a Binomial B(n,p) is n*p. In this case, the expected value of changeovers for n=20 is 19*0.5 = 9.5.

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=6%20%5Csqrt%7B2%7D%20%20-%204%20%5Csqrt%7B3%7D%20%20%2B%20%20%7C3%20%5Csqrt%7B8%7D%20-%208%20%
natima [27]

Answer:

8√3 ≈ 13.86

Step-by-step explanation:

6√2 - 4√3 + | 3√(2²•2) -8√3 | + 2√2²•3

Every 2² get our from the square root and loses the ² :

6√2 -4√3 + | 2•3√2 -8√3 | + 2•2√3

Solve the multiplications and taking of the | | , the signal inside it changes:

6√2 - 4√3 +8√3 -6√2 +4√3

Now you group the similar terms and solve the possible operations:

6√2 - 6√2 +4√3 - 4√3 + 8√3

8√3 ≈ 13.86

3 0
3 years ago
Read 2 more answers
A population of bacteria begins with 1500 bacteria and grows to 4500 in one hour.
dezoksy [38]

The function that represents the growth of this culture of bacteria as a function of time is; P = 1500e^(1.0986t)

<h3>How to calculate Exponential Growth?</h3>

The formula for exponential growth is;

P = P₀e^(rt)

where;

P = current population at time t

P₀ = starting population

r = rate of exponential growth/decay

t = time after start

Thus, from our question we have;

4500 = 1500 * e^(r * 1)

4500/1500 = e^r

e^r = 3

In 3 = r

r = 1.0986

Thus, the function that represents the growth of this culture of bacteria as a function of time is;

P = 1500e^(1.0986t)

For the culture to double, then;

P/P₀ = 2. Thus;

e^(1.0986t) = 2

In 2 = 1.0986t

t = 0.6931/1.0986

t = 0.631 hours

Read more about Exponential Growth at; brainly.com/question/27161222

#SPJ1

4 0
2 years ago
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