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
Ugo [173]
3 years ago
6

Simplify: -10+3r+2r squared-r

Mathematics
1 answer:
VMariaS [17]3 years ago
4 0

Step-by-step explanation:

using

The quadratic general formula

which is

r= -b±√(b²-4ac)

---------------

2a

b= coefficient of r=3

a = coefficient of r²=2

c= constant or number without any variable=-10

r= -3±√(3²-(4×2×-10)

-----------------------

2×2

r=-3±√(9-(-80)

----------------

4

r= -3±√(9+80)

------------

4

You might be interested in
What is the the y-intercept and x-intercept of the line.<br> 4x - 4y= 36
algol13

Answer:

x-intercept: (9,0)

y-intercept: (0,-9)  

Step-by-step explanation:

The x-intercept and y-intercept is the point at which a line intersects the x-axis and y-axis, respectively. All points on the x-axis have a y-value of 0, while all points on the y-axis have an x-value of 0. Thus, to find the x and y intercepts, substitute 0 for one of the variables in the equation, then solve for the other.

1) To find the x-intercept, substitute 0 for y. Then, isolate x.

4x-4(0)=36\\4x-0=36\\4x = 36\\x = 9

So, the x-intercept must be (9,0).

2) To find the y-intercept, substitute 0 for x. Then, isolate y.

4(0)-4y = 36\\0-4y = 36\\-4y = 36\\y = -9

So, the y-intercept must be (0,-9).

4 0
3 years ago
What is the multiplicative inverse of 1/2?<br><br> 2<br> -1/2<br> -2
TEA [102]

Answer:

-2/1

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the diameter of a circle that has a circumference of 38 pi centimeters?
AURORKA [14]
The diameter of the circle is:  "38" .
___________________________________________
<u>Note</u>:

The circumference, "C", of a circle:

C = (pi) * d .

Given:

C = 38 * pi ; 

↔  C = pi * 38 ;

C = pi * d  ;

d = 38 .
_________________________________
The answer is:  "38" .

The diameter of the circle is:  "38" .
_____________________________________________________
4 0
4 years ago
HELP LAST ATTEMPT!! marking as brainliest!
lubasha [3.4K]

Answer:

2 (just look at the graphs height)

5 0
3 years ago
Indicate the equation of the given line in standard form. The line that is the perpendicular bisector of the segment whose endpo
adell [148]
Equation of the line joining the points R(-1,6) and S(5,5)
7 0
3 years ago
Read 2 more answers
Other questions:
  • Four balls of wool will make 8 knitted caps.How many balls of wool will Malcolm need if he wants to make 6 caps, (how would you
    5·1 answer
  • Which expression could be used to determine the cost of a $50 video game after a 20 percent discount?
    9·3 answers
  • True or False: The following relation is a function. {(−5,−7),(0,4),(−5,3),(9,4)}
    11·1 answer
  • A car runs 150km in 3 hours and a train travels 180km in 4 hours.Find the ratio of their speed?
    10·1 answer
  • Polygon PQRS is a scaled copy of polygon ABCD. PLEASE HELP
    11·1 answer
  • A line passes through point (-8,-6) and has a slope of
    7·1 answer
  • Hellpppppppppppppppppppppp
    15·1 answer
  • 2. Your family eats at a Foo Fight Restaurant. The bill is $168. The family leaves a tip and spends a total of $201.60.
    15·2 answers
  • I will give brainleist
    11·2 answers
  • What is the area of the trapiozd 12 in base 6 in height
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!