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
Colt1911 [192]
4 years ago
14

What two numbers add up to 9 and multiply to -90?

Mathematics
1 answer:
Alik [6]4 years ago
3 0
You solve the equation : t^2 - 9t - 90 = 0 ;
Δ = ( - 9 )^2 - 4 * 1 * ( - 90 ) = 81 + 360 = 441 ;
t1 = ( 9 + \sqrt{441}) / 2 = 30 / 2 = 15 ;
t2 = ( 9 - \sqrt{441}) / 2 = -12 / 2 = - 6 ;

The numbers are 15 and - 6 ;
You might be interested in
What is the slope of the line?
laiz [17]
The slope of the line = 1/2
8 0
3 years ago
Find the value of x in each case.
prisoha [69]
It’s 282 because if you add all those rhe divide you get the answer
3 0
3 years ago
If efg= hjk complete each part
icang [17]

Answer:

I this that I is missing in it so the answer is I

3 0
3 years ago
If Elizabeth skates 2/3 mile in 2/9 hour how far does she skate in 1 hour?
padilas [110]

Answer:

3 miles in a hour

Step-by-step explanation:

2/3÷2/9

=6/2

=3 miles in a hour

8 0
3 years ago
Easy science please help ILL GIVE BRIANLIST
Brut [27]

Answer:

1500 kg m/s

Step-by-step explanation:

3 x 500 = 1500

6 0
3 years ago
Other questions:
  • Isabella buys a 1.75 litre carton of apple juice. What is the largest number of 200 millilitre glasses that she can have from th
    15·1 answer
  • I'm not sure how to do this, can someone tell me how?
    14·1 answer
  • The measure of one angle of a triangle is 55 degrees. The measure of the third angle is 20 degrees more than twice the second an
    9·1 answer
  • Pete bagged 18 bags in 9 minutes. How many bags did he bag in 1 minute.
    10·2 answers
  • What is the domain of the function f(x)=x^2+3x+5?
    15·1 answer
  • Solve for v: -8(v - 6) + 7 ≤ -7(v + 1)
    12·1 answer
  • Which expression is equivalent to 3 square root 64k^12
    5·2 answers
  • The price of a television was reduced from $250 to $200. What was the percent decrease in price?
    5·2 answers
  • Fred wants to put a carpet in this room. The carpet costs $15.00 a square yard, how much would it cost for a 3 ft by 6 feet by 9
    5·1 answer
  • The area of the rectangular floor of a shed is 40 space y d squared. The length of the shed is (x+2) yd and the width of the she
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!