3 years ago

PLEASE HELP FAST 20 POINTSSS

Mathematics

1 answer:

lilavasa [31]3 years ago

3 0

Answer:

D is the corect answer

nothing else

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What is the correct standard form of the equation of the parabola? Enter your answer below. Be sure to show each step of your wo

AVprozaik [17]

Answer:

Step-by-step explanation:

eq. of directrix is y=4 or y-4=0

perpendicular distance of (x,y) from directrix =distance of (x,y) from focus (-3,2)

$| \frac{y-4}{1}|=\sqrt{(x+3)^2+(y-2)^2} \\squaring~both~sides\\y^2-8y+16=(x+3)^2+(y-2)2\\(x+3)^2=y^2-8y+16-(y-2)^2\\(x+3)^2=y^2-8y+16-(y^2-4y+4)\\(x+3)^2=y^2-8y+16-y^2+4y-4\\(x+3)^2=-4y+12\\(x+3)^2=-4(y-3)$

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3 years ago

If x =3+2 root 2 find x - 1/x

AveGali [126]

Answer:

-2+2 $\sqrt{2}$

Step-by-step explanation:

Since we have the value of x, 3+2 $\sqrt{2}$ , we can plug that value into the new equation.

We would recieve (3+2 $\sqrt{2}$ -1)/3+2 $\sqrt{2}$

Which could simplify to -2+2 $\sqrt{2}$

8 0

2 years ago

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50 POINTS! HELP! A restaurant manager is planning a new layout for the tables in his store. He will be placing tables of 2, tabl

lina2011 [118]

Answer:

The best possible answer for this would be: D. Mode.

This is because mode measures how many times each number appears.

3 0

3 years ago

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Select the correct answer

vekshin1

Answer:

B. i

Step-by-step explanation:

<u>n/4 has a remainder of 3, then it has a format of:</u>

n = 4k + 3

<u>Substitute n:</u>

i^n = i^(4k)*i^3 = i^(4k)*i^2*i = (-1)(-1)*i = i

Correct option is B. i

7 0

3 years ago

Would someone please help me with this problem?

Arturiano [62]

I would say D. I’m not really sure though. I’m only in 8th grade.

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3 years ago

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