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GaryK [48]
3 years ago
12

HOW MANY TRIANGLES ARE THERE? INCLDNG OVERLAPPING TRIANGLES. I NEED ANSWERS. PLEASE HELP. TYIA​

Mathematics
1 answer:
miss Akunina [59]3 years ago
5 0

Answer:

The answer is 48.

Step-by-step explanation:

There are 4 triangles in each square. So multiply 4 by 12 because thats how many squares there are.

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Geneva rode her bike a total of 2 1/2 miles from her house to school. First she rode 4/5 mile from her house to the park. Then s
Sonja [21]
Add 4/5 and 1/5 to make 5/5 or 1 mile the subtract 1 from 2 1/2 to equal 1 1/2 miles
8 0
3 years ago
Suppose that 15% of the fields in a given agricultural area are infested with the sweet potato whitefly. One hundred fields in t
hram777 [196]

Answer:

a.\mu=15

b.\mu=7.8586 \ and  \ \mu=22.1414

c. Choice A- Based on limits above, it is unlikely that we would see x = 45, so it might be possible that the trials are not independent.

Step-by-step explanation:

a.Binomial distribution is defined by the expression

P(X=k)=C_k^n.p^k.(1-p)^{n-k}

Let n be the number of trials,n=100

and p be the probability of success,p=15\%

The mean of a binomial distribution is the probability x sample size.

\mu=np=100\times0.15=15

b.Limits within which p is approximately 95%

sd of a binomial distribution is given as:\sigma=\sqrt npq\\q=1-p

Therefore, \sigma=\sqrt(100\times0.015\times0.85)=3.5707

Use the empirical rule to find the limits. From the rule, approximately 95% of the observations are within to standard deviations from mean.

sd_1=>\mu-2\sigma=15-2\times3.3507=7.8586\\sd_2=>\mu-2\sigma=15+2\times3.3507=22.1414

Hence, approximately 95% of the observations are within 7.8586 and 22.1414 (areas of infestation).

c.  x=45 is not within the limits in b above (7.8586,22.1414). X=45 appears to be a large area of infestation. A.Based on limits above, it is unlikely that we would see x = 45, so it might be possible that the trials are not independent.

4 0
3 years ago
A Real estate agent receives a commission of 9% on property sold through her. What is her commission on a sale of $42,000?
NISA [10]

Answer:

$ 3780 will be commission

Step-by-step explanation:

as the commission is 9 % of the total amount of property sold

property sold for = 42000 $

9 % of the total property= 0.09 x 42000

                                      = 3780 $

3 0
3 years ago
Read 2 more answers
Please help this is also very urgent
igor_vitrenko [27]
I think The answer is c
5 0
2 years ago
Read 2 more answers
Plzz answer this fasttttttttt​
erica [24]

Answer:

37°

This is because the square indicates a right angle.

53 - 90 = 37

3 0
3 years ago
Read 2 more answers
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