1 year ago

Find 2 points on the parabola with focus (1,-2) and directrix at y=1

Mathematics

1 answer:

Romashka-Z-Leto [24]1 year ago

7 0

Answer:

use this Y=MX+B

Step-by-step explanation:use this Y=MX+B

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At a store, 2 gallons of milk cost $6. Which is the value of the ratio of dollars to gallons of milk?

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1 gallon = $3 so the ratio would be 1:3 where 1 would represent the gallon and 3 the price

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3 years ago

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Eight times what equals 226

PSYCHO15rus [73]

Answer:

28.25

Step-by-step explanation:

just do 226 divided by 8

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Clare is painting some doors that are all the same size. She used 2 liters of paint to cover 135 doors. How many liters of paint

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Step-by-step explanation:

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3 years ago

What is the solution?

Ilia_Sergeevich [38]

Answer:

A. { $3+7i,3-7i$ }

Step-by-step explanation:

The given equation is $x^2-6x+58=0$

Use the quadratic formula with a=1,b=-6 and c=58

Recall the quadratic formula;

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

We substitute the given values to get;

$x=\frac{--6\pm \sqrt{(-6)^2-4(1)(58)} }{2(1)}$

$x=\frac{6\pm \sqrt{36-232} }{2}$

$x=\frac{6\pm \sqrt{-196} }{2}$

Recall that;

$\sqrt{-1}=i$

$x=\frac{6\pm 14i}{2}$

$x=3\pm 7i$

$x=3+7i$ or $x=3-7i$

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Let 3 × 3 × 3 × 3 = n. Which choice also equals n? A) 3 × 4 B) 34 C) 4 ÷ 3 D) 43

Klio2033 [76]

None because 3x3x3x3=81 so n=81 and none of those answers equal 81

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