What is 2000 times 2

Answers

Answer 1

Answer:

Answer:

The answer is 4,000

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The equation of a conic section is 2y2 – x – 8y + 5 = 0. What is the equation in graphing form?

Answers

if you mean solve for y to input into calculator
2y^2-x-8y+5=0
2y^2-8y=x-5
complete the square with y
2(y^2-4y)=x-5
2(y^2-4y+4-4)=x-5
2((y-2)^2-4)=x-5
2(y-2)^2-8=x-5
2(y-1)^2=x+3
(y-1)^2=(x+3)/2
y-1=√((x+3)/2)
y=1+√((x+3)/2)

or we can graph it by hand
(y-1)^2=(1/2)(x+3)
it is a horizontal hyperbola
get into (y-k)^2=4P(x-h) form
(y-1)^2=4(1/8)(x-(-3))
since P>0, graph opens to right
P is distance from directix to vertex and from vertex to focus

vertex is (-3,1)
directix is x=-3.125
focus is (-2.875,1)
READ FULL ANSWER AND ASK ME QUESTIONS BEFORE REPORTING

Find the distance between each pair of points.a. √58

b. √7

c. 5

d. √5

Answers

Answer:

Distance between the points (-3,1) and (1, -2),

$\sqrt{ {(1 + 3)}^(2) + {( - 2 - 1)}^(2) }$

$= \sqrt{ {(4)}^(2) + {( - 3)}^(2) }$

$= √(16 + 9) = √(25) = 5$

Option C

3 1/2 x 4= {Khan Academy}

Answers

Answer:

7x^4/2

Step-by-step explanation:

Mr. Brown bought a television set and paid $110 as the first installment. If he increases each payment by $20 and pays a total of 6 installments, how much will the television set have cost him?

Answers

210 would be the answer

It will cost him $230 because you take 20 and times it by 6 because that's how many installments he had and you get $120 then you add the $110 that he bought the television set for and that will give you $230

If someone can do this ily

Answers

Answer:

a (-5,-2)

b (-3,-5)

c (3,-5)

d (5,-7)

e (5,-2)

Step-by-step explanation:

Cos A = square root 21 divided by 5 and sin A = 2/5. What is the exact value of cos 2A?

Answers

$cos\alpha=(√(21))/(5);\ sin\alpha=(2)/(5)\n\n\ncos2\alpha=cos^2\alpha-sin^2\alpha\n\ncos^2\alpha=\left((√(21))/(5)\right)^2=(21)/(25)\n\nsin^2\alpha=\left((2)/(5)\right)^2=(4)/(25)\n\ncos2\alpha=(21)/(25)-(4)/(25)=(17)/(25)$

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