All categories

3 years ago

Subtract j from 9, then subtract 3 from the result

Mathematics

2 answers:

vladimir2022 [97]3 years ago

8 0

Answer:

j-12

Step-by-step explanation:

without knowing what j is all you can do is combine like terms like -3 and -9

Temka [501]3 years ago

4 0

Answer

(9-j)-3

Step-by-step explanation:

You might be interested in

12 to x and 4 to 117

Alex73 [517]

Write a proportion and solve for x ....

12 / x = 4 / 117

Cross multiply ...

12 * 117 = 1404

x * 4 = 4 x

4 x = 1404

x = 351

7 0

4 years ago

Find the minimum sample size necessary to be 99% confident that the population mean is within 3 units of the sample mean given t

SVEN [57.7K]

Answer:

The minimum sample size required is 207.

Step-by-step explanation:

The (1 - α) % confidence interval for population mean μ is:

$CI=\bar x\pm z_{\alpha /2}\frac{\sigma}{\sqrt{n}}$

The margin of error of this confidence interval is:

$MOE=z_{\alpha /2}\frac{\sigma}{\sqrt{n}}$

Given:

$MOE=3\\\sigma=29\\z_{\alpha /2}=z_{0.01/2}=z_{0.05}=2.576$

*Use a z-table for the critical value.

Compute the value of n as follows:

$MOE=z_{\alpha /2}\frac{\sigma}{\sqrt{n}}\\3=2.576\times \frac{29}{\sqrt{n}} \\n=[\frac{2.576\times29}{3} ]^{2}\\=206.69\\\approx207$

Thus, the minimum sample size required is 207.

3 0

3 years ago

Ingrid deposit $10,000 in an IRA what will be the value of her investment six years if the investment earning 3.2% per year and

enyata [817]

Answer:

$12116.71

Step-by-step explanation:

Given

Deposit = $10000
Interest rate = 3.2% PA
Interest type = compound
Frequency = continuous
Time = 6 years

Calculation

Total = 10000*e^(rt) = 10000*e^(0.032*6) = $12116.71

7 0

3 years ago

Solve the proportion: A printer can print 11 color pages in 2 minutes. How many color pages can the printer print in 7 minutes?

Ann [662]

Answer:

38.5

Step-by-step explanation:

7/2 = 3.5. 11×3.5= 38.5

6 0

3 years ago

Find the area of the triangle

attashe74 [19]

1/2 base x height

That’s it

6 0

3 years ago

Read 2 more answers