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Dmitriy789 [7]
3 years ago
5

Between which two integers does square root of 76 lie?

Mathematics
1 answer:
Alecsey [184]3 years ago
8 0
Answer is B, because 8*8=64 and 9*9=81. 76 lies between 64 and 81.
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56% interest will be earned
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3 years ago
Which of the following options results in a graph that shows exponential growth?
poizon [28]

Answer:

f(x)=0.7(5)^x

Step-by-step explanation:

\text{Exponential function: }y=a\cdot b^x

It is two types of function.

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In this case, a>0 and b>1

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In this case, a>0 and 0<b<1

We need to choose exponential growth function.

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Here a=0.75>0 and b=5>1

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Answer:

  • 80 tons
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8 0
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A survey is being conducted in a county where 62% of the voters are Democrats and 38% are Republican. (a) What is the probabilit
Inessa05 [86]

Answer:

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Step-by-step explanation:

For each voter, there are only two possible outcomes. Either the voter is a Democrat, or he is not. The probability of the voter being a Democrat is independent of other voters. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

62% of the voters are Democrats

This means that p = 0.62

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This is P(X = 2) when n = 2. So

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P(X = 2) = C_{2,2}.(0.62)^{2}.(0.38)^{0} = 0.3844

0.3844 = 38.44% probability that two independently surveyed voters would both be Democrats

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The equation with one change and no solutions: 8x + 6 =
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