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kirill [66]
3 years ago
10

Simplify 3.7x+(0.5-6y)+0.8-(1.7x+1-2.3y)

Mathematics
1 answer:
hammer [34]3 years ago
6 0

Answer:

2x-3.7y+0.3

Simplify the expression.

Step-by-step explanation:

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What is the area of the figure?
Effectus [21]

Answer:

0.77 M

Step-by-step explanation:

I'm going to assume this is a half-circle

Formula:

A = (πr^2)/ 2

D = 1.4

r = 0.7

A = (π 0.7^2)/2

A = (0.49π)/2

A = 0.7693

A = 0.77

8 0
2 years ago
Suppose that an internal report submitted to the managers at a bank in Boston showed that with 95 percent confidence, the propor
Dmitry [639]

Answer:

The sample size used to compute the 95% confidence interval is 1066.

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population proportion is:

CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

The 95% confidence interval for proportion of the bank's customers who also have accounts at one or more other banks is (0.45, 0.51).

To compute the sample size used we first need to compute the sample proportion value.

The value of sample proportion is:

\hat p=\frac{Upper\ limit+Lower\ limit}{2}=\frac{0.45+0.51}{2}=0.48

Now compute the value of margin of error as follows:

MOE=\frac{Upper\ limit-Lower\ limit}{2}=\frac{0.51-0.45}{2}=0.03

The critical value of <em>z</em> for 95% confidence level is:

z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96

Compute the value of sample size as follows:

MOE=z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}\\0.03=1.96\times \sqrt{\frac{0.48(1-0.48)}{n}}\\(\frac{0.03}{1.96})^{2}=\frac{0.48(1-0.48)}{n}\\n=1065.404\\n\approx1066

Thus, the sample size used to compute the 95% confidence interval is 1066.

4 0
2 years ago
Original cost at $9.99 at discount at 15% with a sales tax 5%
enyata [817]
Hope this helps but I think the answer is $8.91.

4 0
3 years ago
Read 2 more answers
How much money is 2/3 of 24.00$ draw a diagram
Pachacha [2.7K]

Answer:

16.00$

Step-by-step explanation:

divide 24 dollars in three sections which is 8 dollars a section. 2/3 is 2 out of 3 sections(8+8) which is sixteen.

3 0
3 years ago
Please answer this math questions ASAP thanks the picture is attached !!
zepelin [54]

Answer:

The answer is C

Step-by-step explanation:

Both f(x) and g(x) have a domain of [0,infinite). and a range of [0, infinite).

5 0
3 years ago
Read 2 more answers
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