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
hammer [34]
3 years ago
5

X^2 - 19x + 90 = 0 Factor and solve

Mathematics
1 answer:
zvonat [6]3 years ago
5 0
Find what 2 numbers multiply to get 90 and add to get -19

they must be both be negative so
factor 90
90
1,90
2,45
3,30
5,18
9,10

add

1+90=91
2+45=47
3+30=33
5+18=23
9+10=19 correct

numbers are -9 and -10 since negative times negative=positive

so
it factored out to
(x-9)(x-10)=0
set each to zero

x-9=0
add 9
x=9



x-10=0
add 10
x=10

x=9 or 10
You might be interested in
Need help with math homework
Nuetrik [128]

Answer:

c

Step-by-step explanation:

am not sure but I think its C am not shure

5 0
3 years ago
Find the sum to infinity​
boyakko [2]

Answer:

-7/27

Step-by-step explanation:

-14/54

Hope this helped :)

6 0
2 years ago
a school paid $31.50 for each calculator, if the school spent 504 dollars on calculators how many did the school buy?​
monitta
The school bought 16 calculators.


504/31.50 =16
7 0
2 years ago
Which phrase describes an unknown or changeable quantity? A. 60 seconds multiplied by 5 B. 2 times the number of pages in the bo
Anna [14]
A.) cause you can’t take away or add seconds
8 0
2 years ago
Read 2 more answers
Una foto de 5 pulgadas de ancho y 7 pulgadas de largo se amplía a un lienzo con un ancho de 42 pulgadas. ¿Cuál será la longitud
stiks02 [169]

Answer:

jdinbdi jdidjd id

Step-by-step explanation:

idmsnd jdjdd

udjdldo xidjfbff didndkd

didjdjfofffifjfkf fifjdbjjoejdkdn

5 0
2 years ago
Other questions:
  • Solve the system using subtitution<br> 3x + 2y = 23<br> 1/2x - 4 = y
    11·1 answer
  • Plz help me with this
    14·2 answers
  • Which of the following plantonic solids is also a cube?​
    10·1 answer
  • Which represents the solution(s) of the system of equations, y = –x2 + 6x + 16 and y = –4x + 37? Determine the solution set alge
    6·2 answers
  • PLZ HELP I WILL MARK BRAINLEST
    7·2 answers
  • Could someone please help me answer both questions!
    10·1 answer
  • Use the following table to determine P(X&gt;4).
    13·1 answer
  • HELPPPP ASAPPP MARKING BRAINLIEST
    10·1 answer
  • Need help urgently please
    8·2 answers
  • The graph of the function f(x) = –(x + 1)2 is shown. Use the drop-down menus to describe the key aspects of the function. The ve
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!