2 years ago

Help fast please ASAP

Mathematics

1 answer:

Aloiza [94]2 years ago

3 0

Answer:

a rotation of 180° about point (0.5, -0.5) followed by a dilation of 0.5

Step-by-step explanation:

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What are the zeros of the polynomial function? <br><br> F(x)= x^2 + 12x +20

vampirchik [111]

Answer:

Step-by-step explanation:

$F(x)=x^2+12x+20\\\\\text{The zeros:}\\\\F(x)=0\iff x^2+12x+20=0\\\\x^2+2x+10x+20=0\\\\x(x+2)+10(x+2)=0\\\\(x+2)(x+10)=0\iff x+2=0\ \vee\ x+10=0\\\\x+2=0\qquad\text{subtract 2 from both sides}\\\boxed{x=-2}\\\\x+10=0\qquad\text{subtract 10 from both sides}\\\boxed{x=-10}$

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3 years ago

What is 7x-4y-8-3x-8y+12

Maksim231197 [3]

Answer: total comes to 4X - 12Y + 4

Step-by-step explanation:

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3 years ago

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What is the sum of (–2.1x + 3.7) and (5 + 4.9x)?

vesna_86 [32]

It's easier to work with problems such as –2.1x + 3.7 -5 + 4.9x when we rearrange the like terms vertically:

–2.1x + 3.7 -5 + 4.9x

becomes

–2.1x + 3.7

+4.9x -5

------------------

2.8x - 1.3 (answer)

4 0

3 years ago

Someone help plz plz plz

prisoha [69]

Answer:I think it's 3 7.75/20 hours

Step-by-step explanation:

Multiply 2/15 by 20 (2x20 and 15x20)

Then 13/20 by 15 (13x15 and 20x15)

Subtract (195/300 - 40/300)

And you get 155/300

Then divide by 20 because dividing by 15 gives you 10.333333

So divide 155/300 by 20 (155÷20 and 300÷20)

And you get 7.75/20

Finally subtract the 2 hours from 5 hours and get 3 hours

Your answer is 3 7.75 hours

5 0

3 years ago

Is the following definition of perpendicular reversible? Two lines that intersect at right angles are perpendicular.

lutik1710 [3]

If I remember correctly perpendicular means right angle so I do not think it could be reversed.

7 0

3 years ago