3 years ago

Which expression has the same value as the one below?

Mathematics

1 answer:

sasho [114]3 years ago

7 0

The answer is C. 33-10

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The solution to -5 m = -20 is negative.

lianna [129]

No it's positive since if you multiply both sides by -1 you will get 5m=20 & m=4

Another method -5m =-20, divide both sides by -5, you will get the same positive m =4

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2 years ago

18x-2y=26 I know I have to move 18x over but how would I do that?

Tresset [83]

I hope this helps you

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Is (0,0) a solution to this system? y ≥ x^2 + x - 4, y> x^2 + 2x + 1

Ipatiy [6.2K]

Y≥x²+x-4
y>x²+2x+1

Substitute (0,0):

0≥-4 true
0>1 false

(0,0) is not a solution of the system.

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3 years ago

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"Complete the square" to convert the equation of each circle to graphing form. Identify the center and the radius.

Reil [10]

Answer:

The center is (-3,2) and the radius is r=2

Step-by-step explanation:

The general equation of the given circle is

$x^2+6x+y^2-4y=-9$

Add the square of half the coefficient of the linear terms to both sides of the equation to obtain;

$x^2+6x+3^2+y^2-4y+(-2)^2=-9+3^2+(-2)^2$

$x^2+6x+9+y^2-4y+4=-9+9+4$

$x^2+6x+9+y^2-4y+4=4$

The quadratic trinomials in x and y on the left side of the equations are perfect squares.

We factor to obtain;

$(x+3)^2+(y-2)^2=4$

$(x--3)^2+(y-2)^2=2^2$

Comparing to:

$(x-h)^2+(y-k)^2=r^2$

The center is (-3,2) and the radius is r=2

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3 years ago

Whisper the numbers in standard form ( 1 hundred 3 tens 4 ones

Colt1911 [192]

Umm i answer is looking 134

8 0

2 years ago

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