Graph the system of equations -3x + y = -2

The cover of a photo album has an area of 97.5 square inches. find its arwa in square centimeters

Anna [14]

Convert 97.5 inches to centimeters. 97.5 in=247.65 cm. The area is 247.65 inches^2. Hope this helps! ;)

4 0

3 years ago

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PLease help please i need helo on this

ankoles [38]

Answer:

315

Step-by-step explanation:

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5 0

3 years ago

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Justin has $57.18 in his checking account. He deposits his paycheck of $256.79. He then buys $68.42 in groceries, $50.00 in gas,

aalyn [17]

$57.18 + 256.79 = 313.97

313.97 - 68.42 = 245.55

245.55 - 50.00 = 195.55

195.55 - 31.06 = 164.49

that’s your answer

6 0

3 years ago

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Hoping to attract more shoppers, a city builds a new public parking garage downtown. The city plans to pay for the structure thr

posledela

Answer:

$MOE_{95} = 1.192\cdot MOE_{90}$

Step-by-step explanation:

The margin of error is computed using the formula:

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

The critical of <em>z</em> for 95% confidence level and 90% confidence level are:

$z_{0.05/2}=z_{0.025}=1.96\\\\z_{0.10/2}=z_{0.05}=1.645$

*Use a <em>z</em>-table.

The sample size is n = 44.

Compare the MOE for 95% confidence level and 90% confidence level as follows:

$\frac{MOE_{95}}{MOE_{90}}=\frac{1.96\times (15/\sqrt{44})}{1.645\times (15/\sqrt{44})}$

$\frac{MOE_{95}}{MOE_{90}}=\frac{1.96}{1.645}\\\\\frac{MOE_{95}}{MOE_{90}}=1.192\\\\MOE_{95} = 1.192\cdot MOE_{90}$

6 0

3 years ago

Dr. Al-Islam teaches the football team 4 new plays in 2/5 of a practice. How many new plays can he teach them in one practice?

Alexus [3.1K]

10 plays

Divide 2/5 and 4 by 2 to get 1/5 and 2

For every 1/5 of practice he teaches the ten 2 plays

5/5 = 1

So 5*2 = 10 plays

4 0

3 years ago