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1 year ago

A square room has an area of 14,400 square

Mathematics

2 answers:

omeli [17]1 year ago

8 0

Answer:

4 i think

Step-by-step explanation:

hram777 [196]1 year ago

5 0

Answer:

3600 inches

Step-by-step explanation:

Hope this helps!

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When constructing a graph that compares the land areas of the five largest countries, you choose to depict the five areas with s

Lera25 [3.4K]

Yes, the variable of interest is two-dimensional.

If you are making a graph about the area of a country, that is a two dimensional measurement. It would be ok to make a graph that is also 2 dimensional.

5 0

2 years ago

Read 2 more answers

Maria and her husband are each starting a saving plan. Maria will initially set aside $50 and then add $30.65 every week to the

Anton [14]

Im pretty sure the answer is t = 50 + 91.40n

3 0

2 years ago

PLEASE HELP ME!!

Ludmilka [50]

Answer:

<h2>The population will reach 1200 after about 2.8 years</h2>

Step-by-step explanation:

The question is incomplete. Here is the complete question.

The population of a certain species of bird in a region after t years can be modeled by the function P(t) = 1620/ 1+1.15e-0.42t , where t ≥ 0. When will the population reach 1,200?

According to question we are to calculate the time t that the population P(t) will reach 1200.To do this we will substitute P(t) = 1,200 into the equation and calculate for the time 't'.

Given;

$P(t) = \frac{1620}{1+1.15e^{-0.42t} } \\\\at \ P(t)= 1200;\\\\1200 = \frac{1620}{1+1.15e^{-0.42t} }\\\\cross\ multiplying\\\\1+1.15e^{-0.42t} = \frac{1620}{1200} \\\\1+1.15e^{-0.42t} = 1.35\\\\1.15e^{-0.42t} = 1.35-1\\\\e^{-0.42t} = \frac{0.35}{1.15}\\ \\e^{-0.42t} = 0.3043\\\\Taking \ ln\ of\ both\ sides\\\\lne^{-0.42t} = ln0.3043\\\\-0.42t = -1.1897\\\\t = \frac{-1.1897}{-0.42} \\\\t = 2.8 years\\\\$

The population will reach 1200 after about 2.8 years

6 0

2 years ago

1. In order to get more female customers, a new clothing store offers free gourmet coffee and pastry to its customers. The avera

ioda

Answer:

No, the manager is not correct based on the 95% confidence interval.

Step-by-step explanation:

We are given that the average daily revenue over the past five-week period has been $1,080 with a standard deviation of $260, i.e.; X bar = $1080 and s = $260 and sample size, n = 35 .

The Pivotal quantity for 95% confidence interval is given by;

$\frac{Xbar - \mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, X bar = sample mean = $1080

s = sample standard deviation = $260

n = sample size = 35 {five-week}

So, 95% confidence interval for average daily revenue, $\mu$ is given by;

P(-2.032 < $t_3_4$ < 2.032) = 0.95

P(-2.032 < $\frac{Xbar - \mu}{\frac{s}{\sqrt{n} } }$ < 2.032) = 0.95

P(-2.032 * ${\frac{s}{\sqrt{n} }$ < ${Xbar - \mu}$ < 2.032 * ${\frac{s}{\sqrt{n} }$ ) = 0.95

P(X bar - 2.032 * ${\frac{s}{\sqrt{n} }$ < $\mu$ < X bar + 2.032 * ${\frac{s}{\sqrt{n} }$ ) = 0.95

95% confidence interval for $\mu$ = [ X bar - 2.032 * ${\frac{s}{\sqrt{n} }$ , X bar + 2.032 * ${\frac{s}{\sqrt{n} }$ ]

= [ 1080 - 2.032 * ${\frac{260}{\sqrt{35} }$ , 1080 + 2.032 * ${\frac{260}{\sqrt{35} }$ ]

= [ 990.70 , 1169.30 ]

<em>No, the manager is not correct based on the fact that the coffee and pastry strategy would lead to an average daily revenue of $1,200 because the calculate 95% confidence interval does not include value of $1200.</em>

Therefore, the store manager believe is not correct.

8 0

2 years ago

Find the number that makes the ratio equivalent to 2:7

Katena32 [7]

Answer:

Hi, There! my name is Jay and I'm here to help!

<h2>Question</h2>

Find the number that makes the ratio equivalent to 2:7

<h2>Answer</h2>

4:14, 6:21, 8:28

Step-by-step explanation:

Ratios that are equal to each other are called equivalent ratios. You can find an equivalent ratio by multiplying or dividing each term of a ratio by the same number.

Therefore, I Hope this helps!

Take Care!

Happy Veterans day!

$-Jay-$

4 0

1 year ago