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
Afina-wow [57]
3 years ago
12

Add 2 x 2 + 5 x + 6 to − 4 x 2 − x + 7

Mathematics
1 answer:
brilliants [131]3 years ago
6 0

Add 2 x 2 + 5 x + 6 to − 4 x 2 − x + 7

Add the expressions.

13

You might be interested in
Does anyone know this and if it is extraneous or not?
Anna11 [10]
Addd 4 to both sides
\sqrt{x+9}=5
sqare both sides
x+9=25
minus 9 both sides
x=16

plug it in for x and see
\sqrt{16+9}-4=1
\sqrt{25}-4=1
5-4=1
1=1
true

not extraneous
an extraneous root would be x=-34
5 0
3 years ago
Plz help
Len [333]
52x38=1976, 1976 is the answer
5 0
2 years ago
PLEASE HELP! i have by the end of the day to turn this in. PLEASE DONT GUESS
ivann1987 [24]

Answer: See step by step

Step-by-step explanation: Angle 2 and 3 are vertical angles since they both share a vertex and has cross intersecting lines. Angle  6 and 7 are supplementary angles because they forma linear pair.

7 0
3 years ago
Read 2 more answers
East of Star, the railroad tracks intersect highway 23o as shown above. If 1=133 , find 2.
GrogVix [38]
Hi there.

These two angles sum up to be 180 degrees, so they are supplementary angles. Now, since these angles sum up to 180 degrees (to form a straight line), we only have to subtract 133 from 180 to find angle 2's measurement.

180 - 133 = 47

Angle 2's measurement is 47 degrees.

Voila! 

I hope this helps! Have a great day. :)
6 0
3 years ago
Can someone please help me???<br><br> -5x+y=35<br> 3x+2y=-21<br><br> (Use substitution method)
Elodia [21]
Answer: x= -7, y= 0
Hope this helped , if it did mark me brainliest pls!
5 0
3 years ago
Read 2 more answers
Other questions:
  • Given a right cylinder where h is the height, and r is the radius, what does the expression 2rh represent?
    9·2 answers
  • if there are 5280 feet in every mile, then what is the soeed if the car that is traveling 35 miles per hour in feet per second
    9·1 answer
  • What is the difference between an estimator and an ​estimate? A. An estimator is a function of a sample of data to be drawn rand
    14·1 answer
  • Wes measures the floor area of rectangular living room to replace the carpet with tiles. The length of the room is 2.6 feet grea
    14·1 answer
  • Jonas wrote 9 + 8 equals 17 what number sentence shows the commutative property of addition
    12·2 answers
  • The answer cause i’m stupid and plus we haven’t learnt this yet soooooo help please &amp; thank you
    14·1 answer
  • (12y2<br> + 17y - 4) + (9y2<br> - 13y + 3) =
    13·2 answers
  • Solving Systems by Elimination
    9·1 answer
  • Help me with these following questions please! marking brainliest
    7·1 answer
  • Hey I need some help ASAP ill give 20 points
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!