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
Sunny_sXe [5.5K]
3 years ago
5

-7x-3x+2=-8x-8 how do I solve step by step ?

Mathematics
1 answer:
Nat2105 [25]3 years ago
4 0

Answer:

x=5/9

Step-by-step explanation:

-7x-3x+2=8x-8

Add -7x-3x.

-10x+2=8x-8

Add -10x on both sides (to cancel out the -10x on the left side)

2=18x-8

Add 8 on both sides (to cancel the -8)

10=18x

Divide 18 on both sides

10/18 simplified is 5/9.

x=5/9

You might be interested in
A fair coin is tossed twice what is the probability that it lands obtaining head and tail 1/8 1/16 1/4 1/2
ra1l [238]
Id say 1/2. Its tossed twice and could go either way.

3 0
4 years ago
Construct the truth table for:
nordsb [41]

You should know that

p ⇒ q ≡ ¬p ∨ q

so that

p ⇒ (q ∧ r) ≡ ¬p ∨ (q ∧ r)

Then making the truth table is simple:

\begin{array}{cccccc} p & q & r & \neg p & q \land r & p \implies (q\land r) \\ T & T & T & F & T & T \\ T & T & F & F & F & F \\ T & F & T & F & F & F \\ T & F & F & F & F & F \\ F & T & T & T &  T & T \\ F & T & F & T & F &  T \\ F & F & T & T & F & T \\ F & F & F & T & F & T \end{array}

8 0
2 years ago
I am have trouble with these x-intercepts. Please help me.​
kotegsom [21]

Answer:

  1. x=8, x=2
  2. no solution
  3. no solution

Step-by-step explanation:

For the equation ...

  y = a(x -h)² +k

you can find the x-intercepts by setting y=0 and solving for x.

  0 = a(x -h)² +k

  -k = a(x -h)² . . . . . . subtract k

  -k/a = (x -h)² . . . . . divide by a

  ±√(-k/a) = x -h . . . . take the square root

  h ± √(-k/a) = x . . . . add h . . . . this is the general solution

__

So, for each of your problems, fill in the corresponding numbers and do the arithmetic. If (-k/a) is a negative number, the square root gives imaginary values, so there is "no solution".

1.  x = 5 ± √9 = {5 -3, 5 +3} = {2, 8} . . . . the x-intercepts are 2 and 8

2.  x = -3 ± √(-2) . . . . . . no solution; the roots are complex

3.  x = 5 ± √(-8/4) . . . . . no solution; the roots are complex

7 0
3 years ago
Read 2 more answers
The axis of symmetry for the graph of the function f(x) =
lara [203]

Answer:

12

Step-by-step explanation:

y =  - x {}^{2}  + bx + 10 \\ y =  - (x {}^{2}  - bx - 10) \\ y =  -( (x -  \frac{b}{2} ) {}^{2}  -  \frac{b {}^{2} }{4}  - 10) \\ y =  - (x -  \frac{b}{2} ) {}^{2}  + 10 +  \frac{b {}^{2} }{4}  \\  \\ therefore \:  \frac{b}{2}  = 6 \\ b = 12

7 0
3 years ago
Haaaaaaaaaaaaaaaaaaaaalllllllp plz
MA_775_DIABLO [31]

Answer:

square root of 166, 13, 14

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • A box of 8 granola bars costs $3.49, what is the price of one granola bar?
    12·2 answers
  • How many solutions does the equation 4x + 2(x – 5) = 3(2x – 4) have?
    14·1 answer
  • Help me.................
    13·2 answers
  • In one year, the McAlister family drove their car 15,680 miles. To the nearest thousand, how many miles did they drive their car
    15·2 answers
  • The cooks at Lakeview Middle School
    5·1 answer
  • Which of the following is the correct factorization of the trinomial below?<br> -7x2 - 4x + 20
    10·1 answer
  • Ugrent plsss i will mark branislestt plss answer this​
    14·2 answers
  • Find the equation of a line that is perpendicular to 4x+6y=1 and that has a greater intercept to the line 2x+3y=18
    10·1 answer
  • A video store is offering 20% off all outdated videos. Let s be the original price of the purchase. Use the expression s-0.2s fo
    13·2 answers
  • A ladder leans against the side of a house. The top of the ladder is 2 m from the ground. The bottom of the ladder is 2 m from t
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!