3 years ago

Use completing the square to solve this quadratic equation.

Mathematics

1 answer:

just olya [345]3 years ago

5 0

B and D is correct :))

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Write the quadratic equation whose roots are −2 and 6, and whose leading coefficient is 3

MaRussiya [10]

Answer:

3(x + 2)(x - 6) = 0

Step-by-step explanation:

We see that if x + 2 = o then x= -2

and if x - 6 = 0, x = 6.

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4 years ago

Find the volume of the cylinder 13mm and 16mm answer choices

Margaret [11]

Answer:

Sorry about that guy

These are the answers still working January 9th of 2019

1.B

2.C

3.B

4.A

Late response but this will help future users at least :P

Step-by-step explanation:

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3 years ago

Find an equation that models the path of a satellite if its path is a hyperbola, a = 55,000 km, and c= 81,000 km. Assume the cen

elena-14-01-66 [18.8K]

Answer:

$\frac{x^2}{55000^2} - \frac{y^2}{59464^2} =1$

Step-by-step explanation:

the transverse axis is horizontal.

so its a horizontal hyperbola

Center is the origin so center is (0,0)

Equation of horizontal hyperbola is

$\frac{x^2}{a^2} - \frac{y^2}{b^2} =1$

Given a= 55000 and c= 81000

c^2 = a^2 + b^2

81000^2 = 55000^2 + b^2

subtract 55000^2 on both sides

b = sqrt(81000^2 - 55000^2)= 59464.27

now plug in the values

$\frac{x^2}{55000^2} - \frac{y^2}{59464^2} =1$

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3 years ago

T is a point inside parallelogram ABCD. The area of ΔTAB = 11, the area of ΔTBC = 4, and the area of ΔTCD = 6. Find the area of

antoniya [11.8K]

wrong question

the ∆TAC is not the triangle

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Lin runs 5 laps around a track in ten minutes how many laps per minute

eimsori [14]

2 minutes per lap. I think

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3 years ago