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aivan3 [116]
3 years ago
14

Plz help as soon as possible

Mathematics
2 answers:
docker41 [41]3 years ago
3 0
Ok so if it’s 112 then it would be 224 because the length is double the width.
tatiyna3 years ago
3 0

Answer: 450

Step-by-step explanation: Because 7 of the boxes are 112 there are 8 more which is 113 add 112 and 113 because that’s the length of all 15 blocks and you get 225 than you multiply by 2 because it’s twice the width and get 450

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A national publication showed the following distribution of favorite class subjects for high school students.
matrenka [14]

Answer:

1 and 111 only

Step-by-step explanation:

The goodness of fit test is used to examine if there is significant evidence to say thatvthe observed and expected freqencies are from the desired distribution.

Condituis required for performing a goodness of fit test on a data include :

Randomness, sampled Data must have been chosen at random in other to be representative, here, randomness isn't exhibited as Pasquale used more of convenient sampling questioning the first 40 students.

Also, the expected value of the number of sample observation in each level of the variable should be atleast 5.

This is also violated, as the expected values for some of the levels are less than 5

Hence, conditions 1 and 111 are not met

7 0
3 years ago
3/8 = r + 2/3<br> what is R
Kruka [31]
-7/24, because you can just do this question in reverse to figure out an answer. (3/8 - 2/3)
5 0
3 years ago
Read 2 more answers
A certain town never has two sunny days in a row. Each day is classified as being either sunny, cloudy (but dry), or rainy. If i
11111nata11111 [884]

Answer:

the proportion of days that are Sunny is 0.2

Step-by-step explanation:

Given the data in the question;

Using markov chain;

3 states; Sunny(1), Cloudy(2) and Rainy(3)

Now, based on given conditions, the transition matrix can be obtained in the following way;

\left[\begin{array}{ccc}0&0.5&0.5\\0.25&0.5&0.25\\0.25&0.25&0.5\end{array}\right]

so let the proportion of sunny, cloudy and rainy days be S, C and R respectively.

such that, from column 1

S = 0.25C + 0.25R   -------------let this be equation 1

from column 2

0.5C = 0.5S + 0.25R

divided through by 0.5

C = S + 0.5R ---------------------- let this be equation 2

now putting equation 2 into equation;

S = 0.25(S + 0.5R) + 0.25R

S = 0.25S + 0.125R + 0.25R

S - 0.25S = 0.375R

0.75S = 0.375R

S = 0.375R / 0.75

S = 0.5R

Therefore,

from equation 2; C = S + 0.5R

input S = 0.5R

C = 0.5R + 0.5R

C = R

Now, we know that, the sum of the three proportion should be equal to one;

so

S + C + R = 1

since C = R and S = 0.5R

we substitute

0.5R + R + R = 1

2.5R = 1

R = 1/2.5

R = 0.4

Hence, the proportion of days that are Rainy is 0.4

C = R

C = 0.4

Hence, the proportion of days that are Cloudy is 0.4

S = 0.5R

S = 0.5(0.4)

S = 0.2

Hence, the proportion of days that are Sunny is 0.2

8 0
3 years ago
hey. I’m doing bad in math! I have a 17% and I have to get 60% in order to pass I’m so stressed out and I just wanna cry. Is thi
amm1812
Just email your teacher and ask if you can raise your grade because you can’t do your work due to co-vid
5 0
3 years ago
: The proliferation of the Internet has given rise to a new method of advertising, called spamming, that essentially is a more c
Dmitry [639]

The number of potential customers that the company has reached is 10,000  e--mail addresses.

<h3>What is a word problem in mathematics?</h3>

A word problem is a real-life problem and it can be approached with the use of a mathematical model, interpretation into variables, and arithmetic operations usage.

Given that:

  • A company buys three mailing lists with 2500, 3500, and 4000 addresses respectively.

The number of potential customers that the company has reached is:

= 2500  3500 + 4000 e--mail addresses.

= 10,000  e--mail addresses.

Learn more about word problems here:

brainly.com/question/13818690

#SPJ1

8 0
2 years ago
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