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IgorLugansk [536]
3 years ago
5

I will give brainlist for correct answer.

Mathematics
2 answers:
Ksivusya [100]3 years ago
8 0

Answer:

1 1/2

Step-by-step explanation:

4/5. 1/4.

16/20. 5/20 21/20

Pani-rosa [81]3 years ago
3 0
About one mile so the second option
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Please will give brainliest and thanks
Paraphin [41]

Answer:

Kahn academy works great with this stuff

Step-by-step explanation:

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3 years ago
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1) If the parent function is f(x)=\xl, which transformation would shift the
gayaneshka [121]

Answer:

The last one.

Step-by-step explanation:

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3 years ago
What would be the BEST formula to model the volume of the teepee shown
ra1l [238]
V=1/3(bh)
One third of base times height
4 0
2 years ago
Match the pairs of equations that represent concentric circles. Tiles
Darina [25.2K]
I will explain you and pair two of the equations as an example to you. Then, you must pair the others.

1) Two circles are concentric if they have the same center and different radii.

2) The equation of a circle with center xc, yc, and radius r is:

(x - xc)^2 + (y - yc)^2 = r^2.

So, if you have that equation you can inmediately tell the coordinates of the center and the radius of the circle.

3) You can transform the equations given in your picture to the form (x -xc)^2 + (y -yc)^2 = r2 by completing squares.

Example:

Equation: 3x^2 + 3y^2 + 12x - 6y - 21 = 0

rearrange: 3x^2 + 12x + 3y^2 - 6y = 21

extract common factor 3: 3 (x^2 + 4x) + 3(y^2 -2y) = 3*7

=> (x^2 + 4x) + (y^2 - 2y) = 7

complete squares: (x + 2)^2 - 4 + (y - 1)^2 - 1 = 7

=> (x + 2)^2 + (y - 1)^2 = 12 => center = (-2,1), r = √12.

equation: 4x^2 + 4y^2 + 16x - 8y - 308 = 0

rearrange: 4x^2 + 16x + 4y^2 - 8y = 308

common factor 4: 4 (x^2 + 4x) + 4(y^2 -8y) = 4*77

=> (x^2 + 4x) + (y^2 - 2y) = 77

complete squares: (x + 2)^2  - 4 + (y - 1)^2 - 1 = 77

=> (x + 2)^2 + (y - 1)^2 = 82 => center = (-2,1), r = √82

Therefore, you conclude that these two circumferences have the same center and differet r, so they are concentric.
5 0
3 years ago
Answer for the points<br> 6 − (9 − 2) + 3 × 6
AfilCa [17]

Answer:

17

Step-by-step explanation:

USING BIDMAS (Brackets Indices Division Multiplication Addition Subtraction)

6 − (9 − 2) + 3 × 6

9-2=7

3x6=18

6-7+18=17

8 0
3 years ago
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