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
Given: 5n - 42 - 12n: Prove: n = -6<br> Statements : <br><br> Reasons :
OlgaM077 [116]
5*-6-42-12*12*-6=0
the answer is: 0
6 0
3 years ago
I am confused about 11.
babunello [35]
-90.1 is the answer.
7 0
3 years ago
Teresa ran for president of the chess club, she received 76 votes . There were 95 members in the club . What percentage of the c
kumpel [21]
76out t of 95 is 80%. 76/95=.8
8 0
3 years ago
Please select the best answer from the choices provided
Lana71 [14]
<h3><u>Answer:</u></h3>

Hence, the value of z is:

20

<h3><u>Step-by-step explanation:</u></h3>

The point C is the mid point of the line segment VW.

That is it divides the line segment VW into two equal segments.

i.e. Length of segment VC= Length of line segment CW.

Also we are given that:

Length VW=61

Length VC=z+13

and Length CW=z+8

This means that:

VC+CW=VW

i.e. z+13+z+8=61

⇒ 2z+21=61

⇒ 2z=61-21

⇒ 2z=40

⇒ z=20

Hence the value of z is:

20

5 0
3 years ago
Read 2 more answers
Find the equation of the line that passes through the points (-2, 3) and (1, -6). Write your answer in Standard Form.
dlinn [17]
Slope = (-6 - 3)/(1+2) = -9/3=-3
y - 3 = -3(x +2)
y - 3 = -3x - 6
3x + y = -3
answer is 3x + y = -3 (third one)
7 0
3 years ago
Other questions:
  • A baker makes apple tarts and apple pies each day. Each tart, t, requires 1 apple, and each pie, p, requires 8 apples. The baker
    11·2 answers
  • Plz help me with this
    11·1 answer
  • Fletcher got 92 votes in the class election. 115 people voted. What percent of all the votes did he get?
    12·1 answer
  • N-4n=-9+6n<br> A) (-9)<br> B) (1)<br> C) (All real numbers. }<br> D) (14)
    7·1 answer
  • Find the y intercept of the line y+3=4(x+3)
    6·1 answer
  • 7 – Зу = 20
    7·1 answer
  • If x=8, what is the value of x(19-x)?
    11·1 answer
  • Write the point-slope equation of (1,6) (3,-6)
    7·2 answers
  • Help me with this please!?!?!?!?!
    10·1 answer
  • How can you use perfect squares to estimate a square root such as 8
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!