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Digiron [165]
3 years ago
5

F 16 LB of fertilizer will cover 1500 ft.² of loan how much fertilizer is needed to cover 2500 ft.²

Mathematics
1 answer:
love history [14]3 years ago
3 0

Answer:

26.109 Lb would be needed!

Step-by-step explanation:

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What should be done first to evaluate the expression?<br> 6+8+ 4+ (4 x 5)2
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Answer: 40x+18

Step-by-step explanation:

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Required information An article presents a new method for timing traffic signals in heavily traveled intersections. The effectiv
Natasha2012 [34]

Answer:

652.6-2.01\frac{311.7}{\sqrt{50}}=563.997    

652.6+2.01\frac{311.7}{\sqrt{50}}=741.203    

So on this case the 95% confidence interval would be given by (563.997;741.203)    

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X=652.6 represent the sample mean for the sample  

\mu population mean (variable of interest)

s=311.7 represent the sample standard deviation

n=50 represent the sample size  

Soltuion to the problem

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

In order to calculate the critical value t_{\alpha/2} we need to find first the degrees of freedom, given by:

df=n-1=50-1=49

Since the Confidence is 0.95 or 95%, the value of \alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.025,49)".And we see that t_{\alpha/2}=2.01

Now we have everything in order to replace into formula (1):

652.6-2.01\frac{311.7}{\sqrt{50}}=563.997    

652.6+2.01\frac{311.7}{\sqrt{50}}=741.203    

So on this case the 95% confidence interval would be given by (563.997;741.203)    

6 0
3 years ago
6 friends are sharing a cake. The cake is cut into 15 pieces. How many pieces will each friend get if divided equally
ELEN [110]

Answer:

2.5 or 2 1/2

Step-by-step explanation:

15 divided by 6

4 0
3 years ago
Find BC. leave your answer in a simplified form
Anettt [7]

Answer:

D) 2√5

Step-by-step explanation:

Pythagorean Theorem

a^2 + b^2 = c^2

2^2 + 4^2 = c^2

4 + 16 = c^2

20 = c^2

√20 = √c^2

2√5 = c

3 0
3 years ago
Read 2 more answers
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