3 years ago

Ssdfdsiufhdsifhdsjfdsi?

Mathematics

2 answers:

kogti [31]3 years ago

7 0

Ssdfdaiufhudisbfinrvkzubrbskib

Kitty [74]3 years ago

6 0

What is your question about that?

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Please help with this

kotykmax [81]

Answer:

A. x = 5, -3

Step-by-step explanation:

The quadratic equation/formula is:

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

The setup is:

$ax^2+bx+c=0$

$4x^2 - 8x -60=0$

Plug in the numbers according to the letter associated:

$x = \frac{8+-\sqrt{-8^2-4(4)(-60)} }{2(4)}$

$x = \frac{8+-\sqrt{1024} }{8}$

$x = \frac{8+-32}{8}$

Solve for addition and subtraction:

$x = \frac{8+32}{8}$ $x = \frac{8-32}{8}$

$x = \frac{40}{8}$ $x = \frac{-24}{8}$

x = 5 x = -3

4 0

3 years ago

The average age of 30 people running for election is 42. A 4th person joins the race and the average drops to 40. what is the 4t

nirvana33 [79]

Answer:

Step-by-step explanation:

Hope this helps. Us what you know, and think of the ages as a, b, c, d

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3 years ago

Identify the solution.

Anna007 [38]

No solution

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) Jimmy's school is selling tickets to the annual dance competition. On the first day of ticket sales the school sold 13 senior

Fantom [35]

Senior citizens- 8 dollars a ticket
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3 years ago

Help a girl out ?? needs turned in at 8:50 pm pls help

True [87]

I guess it’s A not sure tho

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3 years ago

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