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
rjkz [21]
3 years ago
15

2x + 3x + 4 equals .

Mathematics
1 answer:
RUDIKE [14]3 years ago
7 0
Add like terms
only add x's together
2x+3x=5x

we can't add x's and numbres so
answer is 5x+4
You might be interested in
Find the volume of the largest rectangular box in the first octant with three faces in the coordinate planes and one vertex in t
nataly862011 [7]

Let (<em>x</em>, <em>y</em>, <em>z</em>) be a point on the plane in the first octant. The box formed by this point has volume <em>xyz</em>, and you want to maximize this subject to the equation of the plane.

Use the method of Lagrange multipliers: the Lagrangian is

<em>L</em>(<em>x</em>, <em>y</em>, <em>z</em>) = <em>xyz</em> - <em>λ</em> (<em>x</em> + 2<em>y</em> + 3<em>z</em> - 6)

Find its critical points:

∂<em>L</em>/∂<em>x</em> = <em>yz</em> - <em>λ</em> = 0

∂<em>L</em>/∂<em>y</em> = <em>xz</em> - 2<em>λ</em> = 0

∂<em>L</em>/∂<em>z</em> = <em>xy</em> - 3<em>λ</em> = 0

∂<em>L</em>/∂<em>λ</em> = -(<em>x</em> + 2<em>y</em> + 3<em>z</em> - 6) = 0

Solving the first three equations for <em>λ</em> gives

<em>λ</em> = <em>yz</em> = <em>xz</em>/2 = <em>xy</em>/3

Solve these equations for <em>y</em> and <em>z</em> :

• <em>yz</em> = <em>xz</em>/2   =>   <em>y</em> = <em>x</em>/2   =>   2<em>y</em> = <em>x</em>

• <em>yz</em> = <em>xy</em>/3   =>   <em>z</em> = <em>x</em>/3   =>   3<em>z</em> = <em>x</em>

Substitute these solutions into the last equation and solve for <em>x</em>, then again for <em>y</em> and <em>z</em> :

<em>x</em> + 2<em>y</em> + 3<em>z</em> - 6 = 3<em>x</em> - 6 = 0   =>   3<em>x</em> = 6   =>   <em>x</em> = 2, <em>y</em> = 1, <em>z</em> = 2/3

At this critical point, the maximum volume is

<em>xyz</em> = 2*1*2/3 = 4/3

4 0
3 years ago
Solve for the variable. -2x = -15
MakcuM [25]
The variable is x=15/2
8 0
3 years ago
Express the product of 2x^2+6-8 and x+3 in standered form ASap plz !!!!
katrin [286]

1095 to the second power is what google told me!

3 0
3 years ago
Find the median<br> 5 12 18 7 24 16​
brilliants [131]
5 7 12 16 18 24 12 and 16 are in the middle. Add 12 and 16 and then divide by 2 (28/2)= 14
5 0
3 years ago
Name a pair of fractions that use the least common denominator and are equivalent to 9/10 + 5/6
grin007 [14]
The smallest common denominator is 30 in so 
<span>9/10=27/30 and 5/6=25/30 are your answers ; ]</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • The expression 17n+11 represents the perimeter of a triangle. The other two sides measure 4n+5 and 5n+6. A simplified expression
    7·2 answers
  • If the distance between opposite numbers on a number line is 10 units, what are the opposite numbers?
    12·1 answer
  • Which step is the same when constructing an inscribed square and an inscribed regular hexagon? Construct a circle first. Constru
    13·1 answer
  • Can someone help me with this? Having a hard time..as usual
    10·1 answer
  • Does anyone know the answer
    5·1 answer
  • What type of triangle is formed by joining the points D(7, 3), E(8, 1), and
    14·2 answers
  • HELPPPPPPPPPPP!! SMART People?
    15·2 answers
  • Triangles A B C and Q R S are shown. Sides A B and Q R are congruent. Angles C A B and R Q S are congruent. Angles Q S R and A C
    14·2 answers
  • Find the probability and its complement.
    5·1 answer
  • PLEASE HELP
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!