1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ioda
3 years ago
13

2 numbers sum is 7 product is -18

Mathematics
1 answer:
Naily [24]3 years ago
3 0
X+y=7
x•y=-18

x+y=7
x=7-y

x•y=-18
(7-y)•y=-18
7y-y^2=-18
-y^2+7y+18=0
Y^2-7y-18=0
(y-9)(y+2)=0
y is either 9 or -2

x+y=7
x=7-y
X=7-9
X=-2

X•y=-18
9•(-2)=-18
-18=-18

There you go, y is 9 and x is -2

You might be interested in
Big trouble what is 99-30
katovenus [111]
I think it is 69 the rat
6 0
3 years ago
The segment show below form a triangle<br> True or false?
seropon [69]

Answer:

true

Step-by-step explanation:

because it would be

5 0
3 years ago
27. The diameter of a music CD is 12 centimeters. Find the circumference
atroni [7]
Diameter is 2 times the radius. Radius is 6.
Circumference is 2(pi)(radius)
Circumference is approximately 37.7cm
8 0
3 years ago
What is the answer to 532.4 × 100
Westkost [7]
When multiplying 532.4 x 100, you simply move the decimal two spaces to the right, because 100 has 2 zeros. Thus, your answer is 53,240.
8 0
4 years ago
Read 2 more answers
DUE IN 10 MINS, WILL MARK BRAINLYES
Korolek [52]

Answer: Put 2 of these on your paper! :D

Astronomers use the entire electromagnetic spectrum to observe a variety of things. Radio waves and microwaves – the longest wavelengths and lowest energies of light – are used to peer inside dense interstellar clouds and track the motion of cold, dark gas.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify square root of five times the quantity eight plus three square root of six.
    7·1 answer
  • Find the out what the variable means? <br> -22=12p-2(5p+4)<br><br> p=____
    11·2 answers
  • Could anyone willing to help me with trigonometry math ? ndanesmith7 is my g mail, need help asap
    14·1 answer
  • How do you solve for x in a math question like this 5+4x=54-3x?
    14·2 answers
  • -x +2y =-8 find the slope and y intercept
    12·1 answer
  • What is a number sequence<br>​
    11·1 answer
  • 18 inches to 36 inches. Is this an increase or decrease?
    13·1 answer
  • In a bag of jellybeans there are 6 purple jellybeans, 5 blue jellybeans, 3 yellow jellybeans, 2 green jellybeans, and 4 red jell
    8·2 answers
  • Pleaseeeee helpppp! No links, show work and I’ll give brainliest
    7·2 answers
  • Complete the equation describing how x and y are related.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!