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4 years ago

What is the difference between positive and negative exponents

Mathematics

2 answers:

Sladkaya [172]4 years ago

5 0

Negative exponents create the reciprocal of the original number:

2^2=4
2^-2=1/4

4^4=64
4^-4=1/64

mrs_skeptik [129]4 years ago

5 0

Positive exponent means move the decimal to the right and it makes the number bigger and negative exponent means move the decimal to the left and it makes the number smaller. I hope this helped :D

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mixas84 [53]

4 out of 24 reduced to 1 out of 6 since there are 24 total buttons and 4 are blue. About 16.67%

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4 years ago

Read 2 more answers

If a procedure meets all of the conditions of a binomial distribution except the number of trials is not fixed, then the geomet

morpeh [17]

Answer:

The probability is 0.0428

Step-by-step explanation:

First, let's remember that the binomial distribution is given by the formula:

$P(X=k) =\left[\begin{array}{ccc}n\\k\end{array}\right] p^{k}(1-p)^{n-k}$ where k is the number of successes in n trials and p is the probability of success.

However, the problem tells us that when there isn't a number of trials fixed, we can use the geometric distribution and the formula for getting the first success on the xth trial becomes:

$P(X=x) = p(1-p)^{x-1}\\$

The problem asks us to find the probability of the first success on the 4th trial (given that the first subject to be a universal blood donor will be the fourth person selected)

Using this formula with the parameters given, we have:

p = 0.05

x = 4

Substituting these parameters in the formula and solving it, we get:

$P(X=4) = 0.05(1-0.05)^{4-1}\\P(X=4) = 0.05 (0.95)^{3}\\P(X=4) = 0.05(.8573)\\P(X=4) = 0.0428$

Therefore, the probability that the first subject to be a universal blood donor is the fourth person selected is 0.0428 or 4.28%

7 0

3 years ago

Help me please! If f(x) varies directly with x2 and f(x)=10 when x=−4, what is the value of f(x) when x = 3?

exis [7]

Answer:

the answer is d becaus of it's creation

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3 years ago

What is 77/8 in simplest form

julsineya [31]

Find a common multiplier then divide ex. 21/27 = 7/9

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3 years ago

PLEASE HELP FOR 5 STAR AND BRAINLIST TYSM

victus00 [196]

Answer:

Step-by-step explanation:

1) 792÷ 36=22

2) 1/2 ÷ 3 = 1/6

3) D

4) its 10,00 cause 7.741 x 10 = 77,410

5) the answer in decimal is 60.089

5 0

3 years ago