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2 years ago

Plzz can u answer me

Mathematics

1 answer:

Citrus2011 [14]2 years ago

8 0

One. A heart can only be perfectly aligned in half once. And that is by folding it hot dog style.

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has rectangular garden that is that 2/3 yard wide by 7/4 yards long what is the area of garden show work

sasho [114]

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2 years ago

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Hey Friends!! Wanna talk and chill?

Ivan

Answer:

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Step-by-step explanation:

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2 years ago

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A kayak rental company charges $25.00 to rent a kayak and $3.50 for each half hour it is used.

pogonyaev

Answer:

Option D (r(t) = 3.50t +25 ; r(8) = 53)

Step-by-step explanation:

The fixed cost to rent the kayak $25. This is the cost which remains fixed irrespective of the usage of the kayak. The variable cost of using the kayak is the cost which depends on the usage of the kayak. It is mentioned that the kayak is used for 4 hours and the company charges $3.5 for every half hour. The cost function is given by:

r(t) = 25 + 3.5t ; there r is the total cost of using the kayak and t is the number of half-hours the kayak is used.

4 hours means that there are 8 half-hours. Therefore, t=8. Put t=8 in r(t).

r(8) = 25 + 3.5*(8) = 25 + 28 = 53.

Therefore, Option D is the correct answer!!!

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2 years ago

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University dean is interested in determining the proportion of students who receive some sort offinancial aid. rather than exami

vladimir2022 [97]

The confidence interval is
$0.59\pm0.081$

We first find p, our sample proportion. 118/200 = 0.59.

Next we find the z-score associated with this level of confidence:
Convert 98% to a decimal: 98% = 98/100 = 0.98
Subtract from 1: 1-0.98 = 0.02
Divide by 2: 0.02/2 = 0.01
Subtract from 1: 1-0.01 = 0.99

Using a z-table (http://www.z-table.com) we see that this value is associated with a z-score of 2.33.

The margin of error (ME) is given by
$ME=z\sqrt{\frac{p(1-p)}{n}}
\\
\\=2.33\sqrt{\frac{0.59(1-0.59)}{200}}=2.33\sqrt{\frac{0.2419}{200}}\approx0.081$

This gives us the confidence interval
$0.59\pm0.081$

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3 years ago

Plz, help me with this question?

quester [9]

divide both sides by 7 to get x alone

84/7 = 12

B.12

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2 years ago

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