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3 years ago

Y=x2+2x+5 Write each function in vertex form.

Mathematics

1 answer:

Law Incorporation [45]3 years ago

3 0

The function in vertex form is y= (x+1)^2+4.

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Can someone help with finding the area of this shape. The answer choices are on the second picture

Daniel [21]

Answer:

I think the answer is D

Step-by-step explanation

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3 years ago

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Use the quadratic formula to solve the equation 2x^2+2x-4=0

const2013 [10]

Answer:

Step-by-step explanation:

The quadratic formula for the quadratic equation ax² + bx + c = 0:

$x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

$2x^2+2x-4=0\qquad\text{divide both sides by 2}\\\\x^2+x-2=0$

$a=1,\ b=1,\ c=-2$

Substitute:

$x=\dfrac{-1\pm\sqrt{1^2-4(1)(-2)}}{2(1)}=\dfrac{-1\pm\sqrt{9}}{2}=\dfrac{-1\pm3}{2}\\\\x_1=\dfrac{-1-3}{2}=\dfrac{-4}{2}=-2\\\\x_2=\dfrac{-1+3}{2}=\dfrac{2}{2}=1$

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3 years ago

If r = −6, s = −2, and t = −3 then evaluate –t(r – s).

nekit [7.7K]

3(-6+2)
3(-4)
12
;( the correct

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3 years ago

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HELP I NEED HELP ASAP

Elanso [62]

I think c) 9 but I’m not too sure

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3 years ago

Which of the following represents “6 less

kykrilka [37]

Answer:

C) 3x - 6

Step-by-step explanation:

Let the unknown number be represented by placeholder x.

Then the product of 3 and the number is represented by 3*x or 3x.

This value diminished by 6 corresponds to 3x-6.

So the expression representing the required overall construct mathematically is given by 3x-6

Option a, 6x-3 represents the difference of 6 times x and 3.

Option b, 3-6x represents the difference of 3 and (6 times x).

Option d, 6-3x represents the difference of 6 and (3 times x).

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3 years ago