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Nutka1998 [239]
3 years ago
6

Which property would you use first, in solving the equation -4/5x = -2?

Mathematics
1 answer:
kvasek [131]3 years ago
7 0

Answer:

Multiplying each side by the denominator

Step-by-step explanation:

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Solve the following quadratic function by utilizing the square root method. f(x) = 1 - x2 x = + [?]
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Answer:

Step 1) y=16-x2. Swap the sides so that all terms of the variables are on the left side. Step 2) 16-x_{2}=y. Subtract 16 from both sides. Step 3) -x_{2}=y-16 Divide the two sides by -1. Step 4). \frac{-x_{2}}{-1}=\frac{y-16}{-1} Dividing by -1 undoes the multiplication by -1. Step 5). x_{2}=\frac{y-16}{-1} Step 6) dived y-16 by -1 And the final answer = x_{2}=16-y

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Please anybody help me with this question
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Answer:

y = 12

Step-by-step explanation:

Divide both by 1/4

x = 1 when y = 32/3

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The owner of a fish market has an assistant who has determined that the weights of catfish are normally distributed, with mean o
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Answer:

The percentage of samples of 4 fish will have sample means between 3.0 and 4.0 pounds is 66.87%

Step-by-step explanation:

For a normal random variable with mean Mu = 3.2 and standard deviation sd = 0.8 there is a distribution of the sample mean (MX) for samples of size 4, given by:

Z = (MX - Mu) / sqrt (sd ^ 2 / n) = (MX - 3.2) / sqrt (0.64 / 4) = (MX - 3.2) / 0.4

For a sample mean of 3.0, Z = (3 - 3.2) / 0.4 = -0.5

For a sample mean of 3.0, Z = (4 - 3.2) / 0.4 = 2.0

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The percentage of samples of 4 fish will have sample means between 3.0 and 4.0 pounds is 66.87%

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