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Serjik [45]
3 years ago
6

What makes this equation true? -2n + 1.8 = 3.2 Im so confused

Mathematics
1 answer:
fenix001 [56]3 years ago
5 0

Answer:

18 = 3.2

Step-by-step explanation:

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HEL ME PLEEAASSEE AMIGO PLEEAASSEE or amiga
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Answer:

159 degrees

Step-by-step explanation:

A full semicircle (or half circle) has a degrees of 180. And x is equal that semicircle so x = 180, now if we subtract 21 from 180 we get 159, so X = 159.

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According to the US Bureau of Labor Statistics publication News, self-employed persons with home-based businesses work a mean of
worty [1.4K]

Answer:

The answer is below

Step-by-step explanation:

Given that mean (μ) = 23 hours, standard deviation (σ) = 10 hours

a) The population is a group of self employed home based workers while the variable is the number of hours worked per week.

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\mu_x=\mu=23\ hours

The standard deviation of the distribution of sample means is called the Standard Error of M, it is given by:

\sigma_x=\sigma/\sqrt{n} =\frac{10}{\sqrt{100} }=1

c) \mu_x=\mu=23\ hours

\sigma_x=\sigma/\sqrt{n} =\frac{10}{\sqrt{1000} }=0.32

d) The sample size has no effect on the mean, hence increasing the sample size does not change the mean.

The square root of sample size is inversely proportional to the standard deviation therefore increasing the sample size reduces the standard deviation.

5 0
3 years ago
Use a calculator to solve this problem:<br><br> 28 + 27 × 36
Annette [7]

For this case we have that according to the order of algebraic operations PEMDAS, the multiplications have priority over the addition and subtraction, then, we have the following expression:

28 + 27 * 36 =\\28 + 972 =\\1000

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Answer:

28 + 27 * 36 = 1000

8 0
3 years ago
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sattari [20]

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using common denominators

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