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ArbitrLikvidat [17]
3 years ago
14

Just tell me if these soccer balls show a reflection. Its for a math assignment i just need to know if this shows a reflection

Mathematics
2 answers:
lidiya [134]3 years ago
4 0

Answer: Yes

Step-by-step explanation:

Finger [1]3 years ago
3 0

Answer:

yesh it does :>

Step-by-step explanation:

You might be interested in
1,500 people tried a cream. Nine people had a reaction. What percent of people had a reaction?
Nadya [2.5K]

Answer:

0.006% of people had a reaction

Step-by-step explanation:

1,500 tried it -----> 9 had a reaction

9/1,500

Divide both numerator and denominator by 3

3/500

Multiply by 2 to get the fraction out of 1000

6/1000

Divide by 10 to get the fraction out of 100

0.6/100

0.006%

Hope this helps :) Let me know if you have any questions about my answer.

7 0
3 years ago
One hundred rats with mothers that were exposed to high levels of tobacco smoke during pregnancy were put through a simple maze.
Paul [167]

Answer:

The 90% confidence interval for pis (0.7342, 0.8658).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

100 rats mothers, 80 went right. So n = 100, \pi = \frac{80}{100} = 0.8

90% confidence level

So \alpha = 0.1, z is the value of Z that has a pvalue of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8 - 1.645\sqrt{\frac{0.8*0.2}{100}} = 0.7342

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8 + 1.645\sqrt{\frac{0.8*0.2}{100}} = 0.8658

The 90% confidence interval for pis (0.7342, 0.8658).

3 0
2 years ago
PLEASE HELPPPPP!!!! DUE VERY SOON!!!!
REY [17]

Answer:

8

5

-1

-4

Step-by-step explanation:

7 0
3 years ago
a stack of 4 books weigh 5.2 pounds if each book weighs the same amount then how much does each book weigh
statuscvo [17]

Answer:

1.3 pounds

Step-by-step explanation:

8 0
2 years ago
The chu family can hike 3 miles per hour how long will it take them to hike 15 miles
s344n2d4d5 [400]

Answer:

5 hours

Step-by-step explanation:

if they hike 3 miles per 1 hour, and you divide 15 (miles) by 3 (miles) you get 5 hours because each hour they walk 3 miles

(so sorry if this is confusing!! its very hard to explain for me lol)

3 0
2 years ago
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