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3 years ago

10x2 thousand=_______ thousand

Mathematics

2 answers:

Kamila [148]3 years ago

5 0

Answer:

20,000

Step-by-step explanation:

i think so or i might be wrong

Sav [38]3 years ago

5 0

Answer: 20,000

Step-by-step explanation:

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Write the equation of a parabola having the vertex (1, −2) and containing the point (3, 6) in vertex form. Then, rewrite the equ

In-s [12.5K]

PART A

The equation of the parabola in vertex form is given by the formula,

$y - k = a {(x - h)}^{2}$

where

$(h,k)=(1,-2)$

is the vertex of the parabola.

We substitute these values to obtain,

$y + 2 = a {(x - 1)}^{2}$

The point, (3,6) lies on the parabola.

It must therefore satisfy its equation.

$6 + 2 = a {(3 - 1)}^{2}$

$8= a {(2)}^{2}$

$8=4a$

$a = 2$
Hence the equation of the parabola in vertex form is

$y + 2 = 2 {(x - 1)}^{2}$

PART B

To obtain the equation of the parabola in standard form, we expand the vertex form of the equation.

$y + 2 = 2{(x - 1)}^{2}$

This implies that

$y + 2 = 2(x - 1)(x - 1)$

We expand to obtain,

$y + 2 = 2( {x}^{2} - 2x + 1)$

This will give us,

$y + 2 = 2 {x}^{2} - 4x + 2$

$y = {x}^{2} - 4x$

This equation is now in the form,

$y = a {x}^{2} + bx + c$
where

$a=1,b=-4,c=0$

This is the standard form

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3 years ago

The floor and ceiling of a room represent planes that are _____

kicyunya [14]

They are parallel planes

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3 years ago

7) Select the best method to solve the system.

kenny6666 [7]

I’m my opinion the best method is elimination

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3 years ago

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Six posts are evenly spaced along a circular wall encasing a fountain. Anna stands at point A, where she cannot see beyond the o

inn [45]

There are 6 points on a circle.

We have a sum of angles in a circle that is equal to 360°.

Anna can only see 2 points which is a third of a points there are.

That means her spectrum is 360°/3 which is 120°.

The answer is B. 120°.

Hope this helps.

Brainliest would be amazing.

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3 years ago

82 children visit a sports centre.

igomit [66]

Answer:

4 adults are there to look out for the 12 kids and

and at least 2 adults are there to look out at the dancers

Step-by-step explanation:

hope this helps(^_^") fat guy deluxe (΄◞ิ౪◟ิ‵ )

please mark me brainliest!

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2 years ago