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4 years ago

Select all the relations that are functions

Mathematics

2 answers:

seraphim [82]4 years ago

8 0

All of them except the 3rd one

Vinil7 [7]4 years ago

5 0

All of them except the 3rd one

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HELP DUE IN 15 MINS!

boyakko [2]

Answer:

r = $2\sqrt{5}$

$(x - 3)^{2} + ( y - 2)^{2} = 20$

Is this a live test question or a homework question?

Step-by-step explanation:

the radius is the distance between (3, 2) and (5, -2)

$r^{2}$ = ${(3 - 5)^{2} + (2 + 2)^{2} }$

= $(-2)^{2} + 4^{2}$

= 4 + 16 = 20

r = $\sqrt{20 } = 2\sqrt{5}$

Equation of circle: $(x - 3)^{2} + ( y - 2)^{2} = 20$

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3 years ago

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The scatterplot shows the number of weekly hours that swimmers spend at an indoor pool and the average weekly outdoor temperatur

SpyIntel [72]

Answer:

I THINK IT'S C!!!

Step-by-step explanation:

EDGE 2020

8 0

4 years ago

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Vanessa found a less expensive “motivator” for her robot business. The old “motivator” cost $4.00; the new motivator cost $3.65.

aliya0001 [1]

4.00 - 3.65 = 0.35....so she saves 35 cents on each motivator

with 220 motivators...
0.35(220) = $ 77 <== what she saves

4 0

3 years ago

HELP ME WALLAHO HELP ME WALLAHI HELP

sergij07 [2.7K]

Answer:

Step-by-step explanation:

Draw a picture!

You have a right triangle with legs of 5 and 12.

By the Pythagorean Theorem, the hypotenuse is √(5²+12²) = 13

3 0

3 years ago

What is the product? (3x-6) (2x^2 -7x+1)

STALIN [3.7K]

<u>Answer-</u>

$\left(3x-6\right)\left(2x^2-7x+1\right)=6x^3-33x^2+45x-6$

<u>Solution-</u>

Given the two polynomials are $3x-6, 2x^2 -7x+1$

So their product will be,

$=\left(3x-6\right)\left(2x^2-7x+1\right)$

Distributing the Parentheses,

$=3x\cdot \:2x^2+3x\left(-7x\right)+3x\cdot \:1+\left(-6\right)\cdot \:2x^2+\left(-6\right)\left(-7x\right)+\left(-6\right)\cdot \:1$

Applying minus-plus rules,

$=3\cdot \:2x^2x-3\cdot \:7xx+3\cdot \:1\cdot \:x-6\cdot \:2x^2+6\cdot \:7x-6\cdot \:1$

Simplifying further,

$=6x^3-33x^2+45x-6$

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4 years ago

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