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2 years ago

Determine whether the relation is a function. (8, 5), (6, "-2)," (4,-9), (2, "-6)," (4,7)

Mathematics

1 answer:

azamat2 years ago

4 0

Answer: No

Step-by-step explanation:

Because 4 is used 2 times in the x coordinates it is NOT a function

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Solve system using eliminations<br> 2x+4y=22<br> 2x-2y=-8

KATRIN_1 [288]

$2x+4y=22 \\
2x-2y=-8 \ \ \ |\times (-1) \\ \\
2x+4y=22 \\
\underline{-2x+2y=8} \\
2x-2x+4y+2y=22+8 \\
6y=30 \ \ \ |\div 6 \\
y=5 \\ \\
2x-2y=-8 \\
2x-2 \times 5=-8 \\
2x-10=-8 \ \ \ |+10 \\
2x=2 \ \ \ |\div 2 \\
x=1 \\ \\
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3 years ago

Find the erea of the trapezoid.

Lubov Fominskaja [6]

Answer:

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Step-by-step explanation:

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2 years ago

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Nana76 [90]

Answer:

Solution:

(4x2 - 2x) - (-5x2 - 8x)

= 4x2 - 2x + 5x2 + 8x.

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= 9x2 + 6x.

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3 years ago

14.

Anestetic [448]

Step-by-step explanation:

Solution,

According to question,

Length= 12 cm

Breadth= (12-2) cm= 10 cm

Now,

By using the formula of area of rectangle, we get

Area of rectangle= Length×breadth

Area of rectangle=12 cm×10 cm

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