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yuradex [85]
3 years ago
11

What two numbers multiply to get -12 but add to get -1?

Mathematics
2 answers:
ra1l [238]3 years ago
6 0
Xy = - 12
x + y = - 1

x = - 12/y
- 12/y + y = - 1
- 12 + y^2 = - y
y^2 + y - 12 = 0
( y - 3 ) ( y + 4 ) = 0
y = 3 , y = - 4

3x = - 12
x = - 4

y = 3
expeople1 [14]3 years ago
5 0
The answer is -4 and 3
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x+4y=17 and -x-6y=-23 what's the x and y I really badly need this I need this so I can play at my basketball game tommorw and I
loris [4]

<u>Answer:</u>

  • x = 5
  • y = 3

<u>Solution:</u>

  • => x + 4y = 17

            -x - 6y = -23

  • => -2y = -6
  • => y = 3

<u>Now, let's substitute the value of y into the first equation.</u>

  • x + 4y = 17
  • => x + 4(3) = 17
  • => x + 12 = 17
  • => x = 5

<u>Let's check our answer to make sure it is correct.</u>

<u>Check:</u>

  • -x - 6y = -23
  • => -(5) - 6(3) = -23
  • => -5 - 18 = -23
  • => -23 = -23

Hence, this is proven correct.

Hoped this helped.

BrainiacUser1357

7 0
2 years ago
The perimeter of a rectangle is 7.2 feet. The width is 1.2 feet. What is the length?
Fiesta28 [93]
The length is 2.4

1.2 times 2 to take away the both width sides
minutes 2.4 from 7.2 you get 4.8 then divide by two because it’s a rectangle it has to length side and you get 2.4
3 0
3 years ago
Read 2 more answers
Need help on this as soon as possible
Andrew [12]
Hypotenuse of the right triangle: h=sqrt(4^2+6^2)
h=sqrt(16+36)
h=sqrt(52)
h=sqrt(4*13)
h=sqrt(4) sqrt(13)
h=2 sqrt(13)

Total Area: T.A.=2*(4*6/2)+[4+6+2 sqrt(13)] (8)
T.A.=2*(12)+[10+2 sqrt(13)](8)
T.A.=24+(10)(8)+[2 sqrt(13)](8)
T.A.=24+80+16 sqrt(13)
T.A.=104+16 sqrt(13)

Answer: 
( 104+16 sqrt(13) )
5 0
3 years ago
What is the circumference of the circle with a radius of 3.22 Round to the nearest tenth.
myrzilka [38]
To calculate the circumference multiply the radius by 2 to get the diameter. Multiply the result by π, or 3.14 for an estimation.

3.22x 2 = 6.44

6.44x π= 20.23185668911827

rounded to the nearest ten: 20.2
8 0
3 years ago
I don’t really understand could you help
givi [52]

Answer:

M: (-7, -3)

A: (0, -3)

T: (0, -8)

Step-by-step explanation:

each of the points are associated with a letter. you can find the points by looking at the points it matches up with in the formatting of (x,y)

for example, for M, you can see that the dot on the x axis seems to be hovering below -7, on the y axis, it seems to be hovering next to -3. therefore, its (-7,-3)

7 0
3 years ago
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