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finlep [7]
4 years ago
10

What is the rate of change and initial value for the linear relation that includes the points shown in the table? x; 1,3,5,7

Mathematics
1 answer:
const2013 [10]4 years ago
7 0

Answer:

10

Step-by-step explanation:


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LUI
brilliants [131]

Answer: the seventh score is 176%,

B) modal score is 86%

Step-by-step explanation:

Mean score=83%, 7 subjects in place

Total of the scores= 405%

To find the missing score, 405% + x= 83%,

405% + x= 83% ×7 subjects

405%+ x= 581%

X= 176%

2) modal score is 86%

I hope it helps, Give me brainliest!

3 0
3 years ago
HELP FAST i'll mark you brainliest One bus is 5 miles east and 2 miles north of the bus terminal. Another bus is 3 miles west an
ipn [44]

Answer:

7 miles i think not sure cause it could also be 14 so like......

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A test has several multiple choice questions, each with 5 choices. If you guess on 4 questions, what is the probability that you
viktelen [127]

Answer:

4/20 or 1/5

Step-by-step explanation:

number of guesses/total possible outcomes (formula for this question since it is an independent event)

total possible outcomes: 4(# of questions) x 5(# of possible answers in 1 question)

total possible outcomes: 20

number of guesses: 4 x 1(there are 4 questions and you guess 1 answer for each question)

number of guesses: 4

number of guesses/total possible outcomes = 4/20 or 1/5

(I might be wrong lol, I haven't learned it in a long time)

8 0
3 years ago
The ratio of Aziz's money to Osman's money was 2:1 at first. After Aziz spent $10 ratio became 4:3. How much money did each boy
Dvinal [7]

Answer:

Aziz's money was $30

Osman's  money was $15

Step-by-step explanation:

Let

x-----> Aziz's money at first

y-----> Osman's  money

we know that

\frac{x}{y}=\frac{2}{1}

x=2y ------> equation A

\frac{x-10}{y}=\frac{4}{3} -----> equation B

substitute equation A in equation B and solve for y

\frac{2y-10}{y}=\frac{4}{3}\\ \\6y-30=4y\\ \\6y-4y=30\\ \\2y=30\\ \\ y=15

Find the value of x

x=2(15)=30

therefore

At first

Aziz's money was $30

Osman's  money was $15

8 0
3 years ago
4.Is it sometimes, always, or never true that, if A and B both have dimensions n x n , AB=BA ? Explain.
REY [17]

Answer: Is true sometimes.

Step-by-step explanation:

I guess that here we have two matrices, A and B, that are nxn.

We can see that if those matrices can conmutate, then we can try it with some simple matrices.

A = \left[\begin{array}{ccc}1&0\\0&-1\end{array}\right] . B =  \left[\begin{array}{ccc}2&0\\1&1\end{array}\right]

Here, we would have that:

AB =  \left[\begin{array}{ccc}2&0\\-1&-1\end{array}\right]

BA =  \left[\begin{array}{ccc}2&0\\1&-1\end{array}\right]

You can see that AB and BA are different, then the statement is not always true.

But it is true sometimes, if A or B are the identiti, then I*A = A*I, in this case would be true.

It is also true if A and B are diagonal matrices, let's prove it:

A =  \left[\begin{array}{ccc}a&0\\0&b\end{array}\right] , B =  \left[\begin{array}{ccc}c&0\\0&d\end{array}\right]

AB =  \left[\begin{array}{ccc}ac&0\\0&bd\end{array}\right] = BA

5 0
4 years ago
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