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
4vir4ik [10]
3 years ago
7

Pls i need answer with explanation asap.

Mathematics
1 answer:
Mandarinka [93]3 years ago
5 0

Answer:

4 can be rewrite as 2•2, and that's the same as 2².

8 can be rewrite as 2•2•2, and that's the same as 2³

So we can rewrite the whole expression as:

2^x = (2²)⁸•(2³)⁴

2^x = 2¹⁶•2¹²

2^x = 2²⁸

So x = 28

You might be interested in
Solve quadratic equation 10x^2+x-2=0
zhuklara [117]

Answer:

\{-\frac{1}{2} \} \cup \{\frac{2}{5}\}

Step-by-step explanation:

10x^2 + x - 2 = 0; \\ a = 10, b = 1, c = -2; \\ D = b^2 - 4ac = 1^2 - 4 * 10 * (-2) = 1 + 80 = 81 = 9^2, > 0; \\ x_{1, 2} = \frac{-b \pm \sqrt{D}}{2a} = \frac{-1 \pm \sqrt{9^2}}{2 * 10} = \frac{-1 \pm 9}{20} = \left \ [ {{\frac{-1 - 9}{20} = -\frac{10}{20} = -\frac{1}{2}  } \atop {\frac{-1 + 9}{20} = \frac{8}{20} = \frac{2}{5}}} \right.

8 0
2 years ago
3x + 1/5y = 7 Please help me
Nostrana [21]

Answer:

3x + 1/5y = 7

1/5y = 7 - 3x

y = 5 (7 - 3x)

y = 35 - 15x

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The polynomial expression (ax²+2)(x²-3x+1) - (12x⁴-36x³)
satela [25.4K]
I would recommend MathPapa for this.
6 0
3 years ago
-5x+2y=6<br> -x+2y=-2 <br> what is the solution to the system of equations?
dybincka [34]

Step-by-step explanation:

- 5x + 2y = 6 \\ - x + 2y =  - 2 \\  \\  - 5x + 2y - ( - x + 2y) = 6 - ( - 2) \\  - 5x + 2y + x - 2y = 6 + 2 \\  - 4x = 8 \\  \frac{ - 4x}{ - 4}  =  \frac{8}{ - 4 }  \\ x =  (- 2) \\  \\  -5x + 2y =  6 \\  - 5 \times  - 2 + 2y = 6 \\ 10 + 2y = 6 \\ 2y = 6 - 10 \\ 2y =  - 4 \\  \frac{2y}{2}  =  \frac{ - 4}{2}  \\ y =  - 2 \\  now \: lets \: see \: whether \\ this \: equation \: is \: correct. \\  - x + 2y = -  2 \\ -   ( - 2) + 2 \times  - 2 = -  2 \\ 2 + 2  \times   - 2 =  - 2 \\ 2 - 4 =  - 2 \\  - 2 =  - 2 \\ yes \: this \: equation \: is \\ correct.

7 0
3 years ago
Picture attached below. Please help.
Anuta_ua [19.1K]

There isnt a picturee but when you add another question I will hep you the best I can :)

4 0
3 years ago
Read 2 more answers
Other questions:
  • How to understand math​
    11·1 answer
  • How would u solve these questions?
    8·1 answer
  • ****UGRENT****A popular board game company hired a group of students to build a gigantic float for an upcoming parade. The main
    13·2 answers
  • What's another name for division ?
    13·2 answers
  • A store has a 40\%40%40, percent off sale on headphones. With this discount, the price of one pair of headphones is \$36$36dolla
    9·2 answers
  • Find the value of each variable
    15·1 answer
  • How do I reflect a triangle?
    9·1 answer
  • Which is shorter? 3/6 of a minute or 2/6 of an hour?
    12·1 answer
  • 45+40+45=55+60+90+30+55+35+60+45+75
    8·2 answers
  • For which equations is x = 9 a possible solution? Check all that apply.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!