8th out of 10 questions

Mathematics

1 answer:

Digiron [165]3 years ago

8 0

The third one since you can interpret the first column of the graph as the x coordinates and the second column as the y coordinate.

You might be interested in

In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on th

ddd [48]

Answer:

the weighted score is 82.03

Step-by-step explanation:

The computation of the weighted score is as follows

= Respective scores × respective test or exam and score

= 0.21 × 90 + 0.24 × 71 + 0.24 × 71 + 0.31 × 79

= 18.9 + 21.6 + 17.04 + 24.49

= 82.03

Hence, the weighted score is 82.03

We simply applied the above formula so that the weighted score could be come

3 0

3 years ago

Find the inverse matrix or type "none". (use decimals) {11 -5 3 -1}

alexira [117]

The inverse of the matrix $\left[\begin{array}{cc}11&-5\\3&-1\end{array}\right]$ is the matrix $\left[\begin{array}{cc}\frac{-1}{4} &\frac{5}{4} \\\\\frac{-3}{4} &\frac{11}{4} \end{array}\right]$ .

The inverse of a matrix A is calculated by the formula:

A' = (1/|A|)(Adj A),

where A' represents the inverse of matrix A,

|A| represents the determinant value of matrix A, and

Adj A represents the Adjoin matrix of matrix A.

So, to calculate the inverse of the matrix $\left[\begin{array}{cc}11&-5\\3&-1\end{array}\right]$ , we will first calculate its Adj.

Adj = $\left[\begin{array}{cc}-1&-3\\5&11\end{array}\right] ^{T}$ = $\left[\begin{array}{cc}-1&5\\-3&11\end{array}\right]$ .

Now, we calculate |A| = 11*(-1) - (-5)*3 = -11 + 15 = 4.

Therefore A' = (1/|A|)(Adj A),

or, A' = $(1/4)*\left[\begin{array}{cc}-1&5\\-3&11\end{array}\right]$ ,

or, A' = $\left[\begin{array}{cc}\frac{-1}{4} &\frac{5}{4} \\\\\frac{-3}{4} &\frac{11}{4} \end{array}\right]$ .

Therefore, the inverse of the matrix $\left[\begin{array}{cc}11&-5\\3&-1\end{array}\right]$ is the matrix $\left[\begin{array}{cc}\frac{-1}{4} &\frac{5}{4} \\\\\frac{-3}{4} &\frac{11}{4} \end{array}\right]$ .

Learn more about the inverse of a matrix at

brainly.com/question/16862241

#SPJ10

4 0

2 years ago

Evaluate 1/2t + 3/8 when t = 1/4

ladessa [460]

Answer:

the answer is seven - eighths i think

Step-by-step explanation:

3 0

3 years ago