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Nimfa-mama [501]

3 years ago

11

Find h(-5) for the function h(x)= -5x+9. h(-5) =

1 answer:

Helga [31]3 years ago

7 0

Answer:

h(-5) = 34

Step-by-step explanation:

h(x) = -5x + 9

h(-5) = -5(-5) + 9 = 25 + 9 = 34

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Suppose your friends parents invest $10,000 in an account paying 7% compounded annually. what will the balance be after 8 years?

ioda

Answer:

17,181.86

Step-by-step explanation:

Just keep multiplying each answer by 1.07 till you reach 8 years.

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F(x)=x^2-x-12, find f(x)=-12<br><br> *problem b

katrin2010 [14]

Plug in -12 for $f(x)$ !

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4 years ago

55 divided by 11 + 7 x (2+14) please help

Free_Kalibri [48]

Answer:

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Step-by-step explanation:

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3 years ago

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Identify the zeros of the function f(x) =2x^2 − 2x + 13 using the Quadratic Formula. SHOW WORK PLEASE!! I NEED HELP!!

babunello [35]

Answer:

$x=\frac{1+5i} {2}$ and $x=\frac{1-5i} {2}$

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

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

in this problem we have

$f(x)=2x^{2} -2x+13$

Equate the function to zero

$2x^{2} -2x+13=0$

so

$a=2\\b=-2\\c=13$

substitute in the formula

$x=\frac{-(-2)\pm\sqrt{-2^{2}-4(2)(13)}} {2(2)}$

$x=\frac{2\pm\sqrt{-100}} {4}$

Remember that

$i=\sqrt{-1}$

so

$x=\frac{2\pm10i} {4}$

Simplify

$x=\frac{1\pm5i} {2}$

therefore

$x=\frac{1+5i} {2}$ and $x=\frac{1-5i} {2}$

7 0

3 years ago