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3 years ago

Plz help, i would really appriciate it :)

Mathematics

2 answers:

san4es73 [151]3 years ago

8 0

Answer: $x^{2} +12x+20$

Step-by-step explanation:

h(x)= (x+10)(x+2)

^ It is this way because it is so the x value will equal -10 and -2.

Now, we just distribute it. if the question does not have any points it passes through described in the problem, then it is pretty self explanatory.

x^2 + 2x+ 10x+ 20

= $x^{2} +12x+20$

pochemuha3 years ago

5 0

Answer:

f(x) = A(x - 2)(x - 10),

where A is real and A= 20.

Step-by-step explanation:

if I'm wrong I am so very sorry

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The segments shown below could form a triangle 9,4,15 true or false

yawa3891 [41]

No - there is a rule that state that the sum of two sides of a triangle must be greater than the 3rd side.
While 9+15 >4
and 4+15 >9
9+4 is not greater than 15 - so this triangle cannot be made.

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3 years ago

Select the correct answer from the choices given (13 4i) n = 0 what is n? 0 1 –13 4i –13 - 4i

Artemon [7]

The correct answer from the choices given will be -13 - 4i. The numerical part is the real number while the term containing i is the imaginary part.

<h3>What is the complex number?</h3>

A complex number is one that both a real and an imaginary component, both of which are preceded by the letter I which stands for the square root of -1.

The given complex number as;

$\rm 13 + 4 i + n =0$

By transfeering the left-hand side term to the right-hand side the sign will change. We will get the value of n as;

$\rm n=-13 - 4i$

Hence the correct answer from the choices given will be -13 - 4i.

To learn more about the complex number refer to the link;

brainly.com/question/10251853

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2 years ago

A loaf of bread originally priced at $3.49 has been discounted 10% what is the price now?

amm1812

Hello BusyBunny, this is quite simple. All you would need to do is multiply .10 or 10% * $3.49 which will give you a 10% discount.

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4 years ago

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Help me with this question!

Whitepunk [10]

Answer:

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Step-by-step explanation:

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3 years ago

What is the equation of the quadratic graph with a focus of (4,3) and a directrix of y=-6

Rufina [12.5K]

Answer:

f(x) = (1/18)x^2 - (4/9)x - 65/18

Step-by-step explanation:

Since the focus (4,3) is higher up than is the directrix y = -6, the vertex is between y = -6 and y = 3, halfway between these values, to be exact: y = -3/2. Thus, the y-coordinate of the vertex is (-6 + 3/2), or -4.5. The x-coordinate of the vertex is 4, which comes from that 4 in (4,3). Thus, the vertex is (4, -4.5) or (4, -4 1/2).

The standard equation for a vertical parabola with vertex at (h,k) is:

4p(y-k) = (x-h)^2, where p is the distance between vertex and focus or between vertex and directrix. In this case p = 4.5. Thus, the equation of this quadratic is 4(4.5)(y - [-4.5]) = (x - 4)^2, or

18(y+4.5) = (x-4)^2, or y+4.5 = (1/18)(x-4)^2.

Let's expand this and rewrite the result as a quadratic equation in standard form y = ax^2 + bx + c:

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18y = x^2 - 8x + 16 - 81, or

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y = f(x) = (1/18)x^2 - (4/9)x - 65/18.

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3 years ago

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