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3 years ago

Which expression is equivalent to -9-(-4 1/3)

Mathematics

1 answer:

qaws [65]3 years ago

3 0

Note that two negatives = one positive

- (-4 1/3) = + 4 1/3

Subtract

-9 + 4 1/3 = -4 2/3

-4 2/3 is your answer

hope this helps

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Please someone help me and do not just write anything explain thank you . use the information provided to write the vertex form

notka56 [123]

Ok, so user says that it should be solve for vertex not vertex form
(x,y)
to find the vertex of
y=ax^2+bx+c

the x value of the vertex is -b/2a
the y value is found by plugging in the x value for the vertex back into the original equation and evaluating

y=-2x^2-12x-28
a=-2
b=-12

xvalue of vertex is -(-12)/(2*-2)=12/-4=-3

x value of vertex is -3

plug backin for x
y=-2x^2-12x-28
y=-2(-3)^2-12(-3)-28
y=-2(9)+36-28
y=-18+8
y=-10

yvalue is -10
x value is -3

vertex is (-3,-10)

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3 years ago

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emmainna [20.7K]

Answer:

1.110

Step-by-step explanation:

I hope that help's

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3 years ago

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Mnenie [13.5K]

I believe the answer is the first one

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3 years ago

What I the equation in standard form of the line that passes through the points(4,-8) and has a slope of 1/4

valentinak56 [21]

Answer:

Standard form of the line with point (4,-8) and slope of 1/4 is

-x + 4 y = -36.

Step-by-step explanation:

The slope of the line equation = 1/4

The point is given as (4,-8).

Now, by POINT SLOPE formula,

The line equation with slope m nad point (x0,y0) is given as:

(y - y0) = m (x -x0)

So, the line equation here is given as

$y -(-8) = \frac{1}{4} (x -4)\\\implies 4(y + 8) = x - 4\\4 y + 32 = x - 4\\4y = x - 36$

Now, the standard form of line equation is Ax + By = C

Here, 4y = x - 36 ⇒ 4y - x = -36

or, -x + 4y = -36 is the standard form.

Hence,standard form of the line with point (4,-8) and slope of 1/4

is -x + 4y = -36.

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3 years ago

To eliminate the y terms and solve for x in the fewest steps, by which constants should the equation need multiplied by before a

ivanzaharov [21]

A. Multiplied by 2 for the first then for the second multiply by three.

Explanation: the equations already have opposite signs for y so reversing the signs would be counterproductive. (Eliminates B and D) and the easiest way is to get the numbers before the Y variable to be the same. The top by 2 and bottom by 3 would do that, leaving only A.

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2 years ago