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
bogdanovich [222]
3 years ago
6

Simplify the expression 2.8 - 4.5n - 2n + 8 =

Mathematics
1 answer:
shepuryov [24]3 years ago
6 0

Answer:

10.8 - 2.5n

Step-by-step explanation:

2.8  + 8 = 10.8

4.5n - 2n = 2.5n

You might be interested in
It's number 6?its really hard me and my friends have tried but we just don't know.
Elden [556K]
Let n be the amount of points earned in round 5

the goal of the game is to get zero when you add up the point value from all the rounds.

this means
-9 +3 + (-8)+ 2 +n =0

add up all the given numbers, then see which number(n) is required in order to get zero

any questions?
6 0
3 years ago
Please give a step-by-step solution of 2x^2 +12x = 6 (by completing the square)
sp2606 [1]

Answer:

x = - 3 ± 2\sqrt{3}

Step-by-step explanation:

Given

2x² + 12x = 6 ( divide through by 2 )

x² + 6x = 3

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(3)x + 9 = 3 + 9

(x + 3)² = 12 ( take the square root of both sides )

x + 3 = ± \sqrt{12} = ± 2\sqrt{3} ( subtract 3 from both sides )

x = - 3 ± 2\sqrt{3} ← exact solutions

6 0
3 years ago
Expand: In 2a^3/b^4
Ket [755]

Answer:

  ln(2) +3ln(a) -4ln(b)

Step-by-step explanation:

  \ln{\left(\dfrac{2a^3}{b^4}\right)}=\ln{(2a^3b^{-4})}=\ln{(2)}+\ln{(a^3)}+\ln{(b^{-4})}\\\\=\boxed{\ln{(2)}+3\ln{(a)}-4\ln{(b)}}

__

The applicable rules of logarithms are ...

  log(ab) = log(a)+log(b)

  log(a^b) = b·log(a)

3 0
4 years ago
Construct a ∆ PQR , given that PQ = 5.5 cm ,QR = 4.8 cm and PR = 4.2 cm . Write steps of construction .
Lemur [1.5K]

Answer:

Step-by-step explanation:

AT first, draw the reference line, which are given. If I take PQ as base, I won't need to draw PQ line as reference.

I took PQ(5.5cm) as base. Then, take 4.8cm in your compass by centering at point Q. Draw an arc. Then take 4.2 cm in your compass from the reference line which you have drawn and then centre at point P and draw an arc. Both the arcs will meet at one point. Then join the lines to form the Triangle PQR

6 0
3 years ago
Jose wraps packages in the store.He is paid $8.75/h plus $2 for each package.How may packages must wrapped in 40 hour work week
Wittaler [7]
700 packages isjsbsoci a
5 0
3 years ago
Read 2 more answers
Other questions:
  • Can anyone help quickly.. explanation is not necessary but would be appreciated, I struggle with this topic and would like to un
    10·1 answer
  • You move right 3 units and left 4 units. you end at (-3,-1). where did you start?​
    13·2 answers
  • What do the following two equations represent? -x-3y=-1 -x-3y=-1
    6·2 answers
  • HELP ALGEBRA!!! PROPERTIES
    9·2 answers
  • I quit brainly now :')
    14·1 answer
  • Help me please my test is tomorrow!​
    14·1 answer
  • tucker brought and how many boxes of donuts (d) can he buy if he has $25 and 1 dozen of donuts cost $6.50​
    12·1 answer
  • 87.26+(-25.6)+(-5.4)
    8·2 answers
  • Giving branliest pls help
    11·1 answer
  • Multiply and simplify: –3x^2y^2 • x^3 please :)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!