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Ludmilka [50]
3 years ago
10

What two numbers add up to -14 and multiply out to -240

Mathematics
2 answers:
sashaice [31]3 years ago
8 0

Answer:

10-24

Step-by-step explanation:

wlad13 [49]3 years ago
4 0
So x+y=-14
xy=-240

x+y=-14
subtract y from both sides
x=-14-y
subsitute for x in second equation
(-14-y)y=-240
multiply
-y^2-14y=-240
add y^2+14y to both sides
0=y^2+14y-240
use quadratic equation to solve which is \frac{-b+/- \sqrt{b^2-4ac} }{2a} =x if you have ax^2+bx+c so

a=1
b=14
c=-240
subsitute and get \frac{-14+/- \sqrt{14^2-4(1)(-240)} }{2(1)} =10 or -24  (+/- means that there are 2 equations exg 2+/-8=2+8 and 2-8)

the numbers are 10 and -24
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Identify the savings options and the investment options. business ownership bonds money market account promotional CD
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Answer:

The given options are -

business ownership

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promotional CD

Now we have to identify these under saving options or investment options.

So, saving are :

promotional CD and money market account ( money market account is a type of saving account that can pay higher interest rate than normal savings accounts, but these accounts have higher minimum deposits.)

And investment are :

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8 0
3 years ago
Read 2 more answers
The equation x2 - 12x - 60 = -y2 - 4y describes a circle in the coordinate plane. find the radius of the circle and the coordina
34kurt

Answer:

r = 10 , centre = (6, - 2 )

Step-by-step explanation:

the equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k ) are the coordinates of the centre and r is the radius

given

x² - 12x - 60 = - y² - 4y ( add y² + 4y to both sides )

x² - 12x + y² + 4y - 60 = 0 ( add 60 to both sides )

x² - 12x + y² + 4y = 60

using the method of completing the square

add ( half the coefficient of the x and y terms )² to both sides

x² + 2(- 6)x + 36 + y² + 2(2)y + 4 = 60 + 36 + 4

(x - 6)² + (y + 2)² = 100 ← in standard form

with centre = (6, - 2 ) and r = \sqrt{100} = 10

8 0
1 year ago
Someone please help i don’t understand
Finger [1]
Hola como estas boiii
8 0
3 years ago
What's one of the factors of x² - x – 6 ?
mr Goodwill [35]
x^2-x-6=x^2+2x-3x-6=x(x+2)-3(x+2)\\\\=\boxed{(x+2)(x-3)}

The factors are: (x+2) and (x-3).

x^2-x-6=x^2+\underbrace{2x-3x}_{=-x}-6\\\\=\underbrace{x\cdot\boxed{x}}_{=x^2}+\underbrace{2\cdot\boxed{x}}_{=2x}+\underbrace{\fbox{-3}\cdot x}_{=-3x}+\underbrace{\fbox{-3}\cdot2}_{=-6}=\boxed{x}(x+2)+\fbox{-3}(x+2)\\\\=(x+2)(x+(-3))=\boxed{(x+2)(x-3)}
8 0
3 years ago
ANSWER THIS ASAP! To rent a certain meeting room, a college charges a reservation fee of $16 and an additional fee of $4 per hou
yanalaym [24]

Step-by-step explanation:

t=9 this is because the "base number" is $16 so it is $16 just to rent it and each hour to rent is $4 and 4x9 is 36 so that plus the base price adds up to exactly $52.

8 0
2 years ago
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