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3 years ago

Identity the domain and range of the relation (-9, 2) , (-4,2) , (3 ,2 ) , (9,2)

Mathematics

2 answers:

german3 years ago

7 0

domain is (-9,-4,3,9)

range is {2}

Illusion [34]3 years ago

6 0

The domain is the set of the first values in the ordered pairs and the range is the set of the second values.

Domain = {-9, -4, 3, 9}

Range = {2}

(values are not repeated in the list).

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Find the value of x, circles and angles

lorasvet [3.4K]

Answer:

x = 50

Step-by-step explanation:

When two secants intersect in the interior of a circle, the angles formed are the average of the arc an angle and its vertical intercept. In this case, our angle, 73, should be the average of x and 96. We can translate this to an equation and solve:

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Step-by-step explanation:

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4 years ago

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polet [3.4K]

Answer:

The answer is 54 9/14

Step-by-step explanation:

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3 years ago

Use substitution to solve the following system of linear equations and fill in the following blanks:

marissa [1.9K]

Answer:

$x=-4$

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$z=-5$

Step-by-step explanation:

Given:

$x+y+z=-6$

$x-6y-7z=-29$

$-7y-5z=4$

Solve for $x$ in the 1st equation:

$x+y+z=-6$

$x+y=-z-6$

$x=-y-z-6$

Substitute the value of $x$ into the 2nd equation and solve for $z$ :

$x-6y-7z=-29$

$(-y-z-6)-6y-7=-29$

$-7y-z-13=-29$

$-7y-z=-16$

$-z=-16+7y$

$z=16-7y$

Substitute the value of $z$ into the 3rd equation and solve for $y$ :

$-7y-5z=4$

$-7y-5(16-7y)=4$

$-7y-80+35y=4$

$28y-80=4$

$28y=84$

$y=3$

Plug $y=3$ into the solved expression for $z$ and evaluate to solve for $z$ :

$z=16-7(3)$

$z=16-21$

$z=-5$

Plug $z=-5$ into the solved expression for $x$ and evaluate to solve for $x$ :

$x=-(3)-(-5)-6$

$x=-3+5-6$

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$x=-4$

Therefore:

$x=-4$

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6 0

3 years ago