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Crank
2 years ago
14

PLEASE HELP!!!!!

Mathematics
1 answer:
kondor19780726 [428]2 years ago
3 0

Answer:

the answer is a but I have to make that extra long cuz it has to be more than 20 words

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Hi, can someone please help, and possibly explain the answer please.
mr_godi [17]

Answer:

x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}

Step-by-step explanation:

Quadratic formula: x=\frac{-b\±\sqrt{b^2-4ac} }{2a} when the equation is 0=ax^2+bx+c

The given equation is 1=-2x+3x^2+1. Let's first arrange this so its format looks like y=ax^2+bx+c:

1=-2x+3x^2+1

1=3x^2-2x+1

Subtract 1 from both sides of the equation

1-1=3x^2-2x+1-1\\0=3x^2-2x+0

Now, we can easily identify 3 as a, -2 as b and 0 as c. Plug these into the quadratic formula:

x=\frac{-b\±\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}

I hope this helps!  

8 0
2 years ago
The sum of x and y is 7. The value of y is three more than the value of x. Write a system of equations to model this.
Ilia_Sergeevich [38]

Answer: x= 2 , y= 5 (5+2=7)

Step-by-step explanation:

I don't really know how to put it into an equation- but here's your values?? Sorry if this didn't help ):

6 0
3 years ago
the company sea esta has ten members on its board of directors. in how many different ways can it elect a president, vice-presid
Inessa [10]

There are 10 members on the board, so there are 10 ways to elect a president, 9 ways to elect a vice president, 8 ways to elect a secretary, and 7 ways to elect a treasurer.

This is because each position can be filled by any of the members, except for the position that the member is already filling. For example, the president can be elected from any of the 10 members, but the vice president must be elected from the remaining 9 members.

The company sea esta has ten members on its board of directors, so it has a lot of different options for how to elect a president, vice-president, secretary, and treasurer. One way to elect a president would be to have the board members vote on who they want to be president.

Another way to elect a president would be to have the members of the company vote on who they want to be president. There are many different ways to elect officers, and it really depends on the company and what they want to do.

Learn more about election at : brainly.com/question/11185151

#SPJ4

3 0
9 months ago
F(x) = (1/4)^x. for x = -3
Trava [24]
Plug in -3 for x into the equation.

(1/4)^-3

And solve

(1/4)^-3 = 64
7 0
2 years ago
Read 2 more answers
In a recent year, 34.8% of all registered doctors were female.If there were 43,100 female registered doctors that year, what was
charle [14.2K]
Let the total # of reg. docs. be t.  Then 0348t = 43100.  Solve this for t:
        43100 docs
t = ------------------- = 123,851 (rounded up from 123850.57)
            0.348
8 0
2 years ago
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