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Anon25 [30]
3 years ago
10

3 brother are having dinner

Mathematics
2 answers:
Galina-37 [17]3 years ago
7 0
The 2nd brother will finish first 
Nutka1998 [239]3 years ago
5 0
It really just depends on how fast or how slow they eat but the second brother will get done eating first
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Slow response times by paramedics, firefighters, and policemen can have serious consequences for accident victims. In the case o
kramer

Answer:

a)

H_0: \pi\geq0.78\\\\H_a: \pi

b) The Type I error occurs when we reject a null hypothesis that is actually true. In this case, it means we conclude that the arrival time have improved, when it didn't.

The Type II error occurs when we accept a null hypothesis that is actually false. In this case, although the arrival times have really improved, the evidence from the sample was not enough to show that improvement.

c) In this case, the Type I error is more serious, because it gives the wrong impression of improvement and no further actions will be taken to reduce the times.

Step-by-step explanation:

a) If you want to determine if the responders are arriving within 8 minutes of the call more often, you have to evaluate the proportion of accidents in which the arrival time is less than 8 minutes and compare it with the known proportion of π=0.78.

The sample parameter "p: proportion of accidents with arrival time of 8 minutes or less" will be used to test the hypothesis.

The null and alternative hypothesis will be:

H_0: \pi\geq0.78\\\\H_a: \pi

3 0
3 years ago
What is the surface are of the container of oatmeal shown below? use 3.14 for pi
Serjik [45]
The surface area of a cylinder is:

2 \pi rh+2 \pi r^2

So fill in the equation and solve:

2 \pi (8)(11)+2 \pi (8)^2
2 \pi 88+2 \pi 64
\pi 176+ \pi 128
\pi 304
3.14*304
954.56 cm^2

Hope this helps!

8 0
3 years ago
The ratio of boys to girls at the dance was 8 to 4. How many girls were at the dance if there were 88 boys at the dance?
nevsk [136]

88/8=11.

So multiply 4 by 11.

4x11=44

So the ratio is 88:44.

There are 44 girls at the dance

---

hope it helps

5 0
3 years ago
Find the first term of the sequence 4, 12, 36, 108.... which exceeds 20,000.
Schach [20]

Answer:

43740

Step-by-step explanation:

its an exponential factor of 3 just multiply each answer by 3 to get the next one up

5 0
3 years ago
Wayne drove 2 miles west and then 6 miles south, how far is he from his starting point?
suter [353]

Answer:

8 miles away

Step-by-step explanation:

Add the 6 miles and the 2 miles together.

6 0
3 years ago
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