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kenny6666 [7]
3 years ago
7

Which ratio is equivalent to

Mathematics
1 answer:
Alex3 years ago
6 0

Answer:

I do not know the exact answer but how I get the answers is looking up if 15:42 is equivalent to any of the numbers and soon you will find your answer!

Step-by-step explanation:

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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
What is the next term of the geometric sequence?<br><br> 4/9,-4/3,4,...<br> ​
Wittaler [7]

Answer: 9 is the answer

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
How can the logarithmic expression be rewritten?<br><br> Select True or False for each statement.
topjm [15]

Answer:

True, True, False

Step-by-step explanation:

5 0
2 years ago
Write -621,000 in scientific notion
Nuetrik [128]

Answer:

-6.21 x 10^5

Step-by-step explanation:

The negative only comes when the numbers are in the decimal to right such as 0.1 when its on the left side it just mean positive power such as 6.0= a positive, negative power = 0.6 count how many numbers there are (6) then get the last number as the whole number and the rest are behind (-6.21) count all the numbers besides the last number (6) now that is your power so you get -6.21 x 10^5

6 0
3 years ago
Read 2 more answers
A cube's edge lengths are each 5 inches. A rectangular prism's length and width are also 5 inches, but its height is 7
algol [13]

The rectangular prism is 187.5 - 125 = 62.5 cu.inches greater than the volume of cube.

<h3>What is Volume?</h3>

Volume is defined as the space occupied by a three dimensional figure.

It is given that

A cube's edge lengths are each 5 inches

A rectangular prism's length and width are also 5 inches, but its height is \rm 7\dfrac{1}{2}

The volume of the cube is given by side * side * side

Volume of cube = 5 *5 * 5 = 125 cu. inches

The volume of cuboid = length * width * height

<h3>Volume of Cuboid = 5  * 5 * 15/2</h3>

Volume of Cuboid = 187.5 cu.inches.

Therefore the rectangular prism is 187.5 - 125 = 62.5 cu.inches greater than the volume of cube.

To know more about Volume

brainly.com/question/1578538

#SPJ1

6 0
2 years ago
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