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AlekseyPX
3 years ago
6

Over the course of 87 days, about 200 million gallons of crude oil spilled into the Gulf of Mexico. If the oil spilled at a cons

tant rate each day, how many gallons were lost per day?
Mathematics
1 answer:
katrin [286]3 years ago
7 0

Answer:

3.19 gallons of oil lost per day

Step-by-step explanation:

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Tehara has read 115 pages of a 305 page book she reads 10 pages each day how many days will it take to finish
OlgaM077 [116]
It would take her 20 or 19 days
3 0
3 years ago
Three cunces of cinnamon cost $2.40 if there are 16 ounces in 1 pound how much does cinamon cost per pound
kvv77 [185]
Answer: One pound of cinnamon costs $12.80
7 0
3 years ago
Suppose the population standard deviation is σ = 5 , an SRS of n = 100 is obtained, and the confidence level is chosen to be 98%
beks73 [17]

Answer:

1.165.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.98}{2} = 0.01

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.01 = 0.99, so z = 2.33

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

In this problem, we have that:

\sigma = 5, n = 100. So

M = z*\frac{\sigma}{\sqrt{n}}

M = 2.33*\frac{5}{\sqrt{100}} = 1.165

So the correct answer is:

1.165.

6 0
3 years ago
Steven is taking out a loan in the amount of $5,000. His choices are a 3-year loan at 5% simple interest and a 5 -year loan at 4
Andre45 [30]
I do believe it’s 250$

**The first choice:**
Principal: 5,000$
Rate(%): 5
Time(year): 3 years
A: 5,750$

**Second choice**
Principal: 5,000$
Rate(%): 4%
Time(year): 5 years
A: 6,000$

6,000-5,750=250$

Hope this helps!
8 0
3 years ago
PLEASE HELP ME ITS TIMED!!
Sindrei [870]

Answer:

x=40°

Step-by-step explanation:

(x-5)+(x+15)=90°

2x+10=90

2x=80

x=40°

6 0
2 years ago
Read 2 more answers
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