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2 years ago

PLEASE ANSWER IXL QUESTION,WILL GIVE BRAINLITIS!!!!! its attached

Mathematics

1 answer:

SpyIntel [72]2 years ago

6 0

Answer:

y=-x/3+7/3

Step-by-step explanation:

Use linear function: y=mx+b

m= -1/3

Substitue

m= -1/3,(8,-5)

5= -1/3 * (-8) +b

Solve the equation

5= -1/3 *(-8) +b

Rearrange unknown terms to the left side of the equation

-b= -1/3 * (-8) -5

Reduce the greatest common factor on both sides of the equation

b= 1/3 * (-8) +5

Remove the parentheses

b= -1/3 *8+5

Write as a single fraction

b= -8/3+5

Convert the expression into a fraction

b=-8/3+5/1

Expand the fraction to get the least common denominator

b= -8/3+5*3/1*3

Calculate product or quotient

b=-8/3+15/3

Write the numerators over the common denominator

b=-8+15/3

Calculate the sum or difference

b=7/3

Subsitute

m= -1/3,b=7/3

y= -1/3x+7/3

Rewrite the equation

y= -1/3x+7/3

Find the required form

y=-x/3+7/3

Hope this helps!!

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Researcher Sandy Beach found a correlation coefficient of +2.3 between variables X and Y. She is thrilled because that correlati

tia_tia [17]

Correlation coefficient is always between -1 and +1. So it cannot be +2.3

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2 years ago

Which of the sets of ordered pairs represents a function?

IgorC [24]

Answer:

Neither set A nor set B represents a function.

Step-by-step explanation:

According to the definition of a function, for each input there exists a unique output. In other word for each value of x there exists unique value of y.

In set A we have four ordered pair (-4,5),(1,-1),(2,-2) and (2,3).

It means for x=2, we have two values of y, i.e., -2 and 3.

Since for a single value of x there exist more than one value of y, therefore set A is not a function.

In set B we have four ordered pair (2,2),(3,-2),(9,3) and (9,-3).

It means for x=9, we have two values of y, i.e., -3 and 3.

Since for a single value of x there exist more than one value of y, therefore set B is not a function.

3 0

3 years ago

Read 2 more answers

The Cinema Center consists of four theaters: Cinemas I, II, III, and IV. The admission price for one feature at the Center is $5

zzz [600]

Answer:

a) Matrix B = $\left[\begin{array}{c}5\\7\\9\end{array}\right]$

b) Matrix AB = $\left[\begin{array}{c}2525\\3620\\2845\\3705\end{array}\right]$

c) $12,695

Step-by-step explanation:

Matrix A = $\left[\begin{array}{ccc}225&110&70\\95&160&225\\280&65&110\\0&240&225\end{array}\right]$

a) Matrix B = $\left[\begin{array}{c}5\\7\\9\end{array}\right]$

Gross Receipt = AB

$\left[\begin{array}{ccc}225&110&70\\95&160&225\\280&65&110\\0&240&225\end{array}\right]$ . $\left[\begin{array}{c}5\\7\\9\end{array}\right]$ = $\left[\begin{array}{c}2525\\3620\\2845\\3705\end{array}\right]$

c) Total revenue is the sum of receipts from 4 cinemas given in part b

Hence,

Total revenue = $2525 + $3620 + $2845 + $3705 = $12,695

3 0

3 years ago

-4rover4+5rover3 please help me

Alchen [17]

$Solution, \frac{-4r}{4}+\frac{5r}{3}=\frac{2r}{3}$

$Steps:$

$\frac{-4r}{4}+\frac{5r}{3}$

$\frac{-4r}{4},\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b},\\-\frac{4r}{4},\\\mathrm{Divide\:the\:numbers:}\:\frac{4}{4}=1,\\-r,\\-r+\frac{5r}{3}$

$\mathrm{Convert\:element\:to\:fraction}:\quad \:r=\frac{r3}{3},\\\frac{5r}{3}-\frac{r\cdot \:3}{3}$

$\mathrm{Since\:the\:denominators\:are\:equal,\:combine\:the\:fractions}:\quad \frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c},\\\frac{5r-r\cdot \:3}{3}$