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
Kaylis [27]
3 years ago
13

How to rewrite an expressions with negative exponents so that the exponent is positive?

Mathematics
1 answer:
Nuetrik [128]3 years ago
5 0
A^(-b) = 1 / (a^b)

examples : 4^(-3) = 1 / (4^3) = 1 / 64

2 + 4^(-2) = 2 + 1/(4^2) = 2 + 1/16 = 2 1/16

3 * 2^(-2) = 3 * 1 / (2^2) = 3 * 1/4 = 3/4
You might be interested in
I need help Plz Help me thx
Lubov Fominskaja [6]
I think its the third one
3 0
4 years ago
1. Which expression is equivalent to the expression below?
Nat2105 [25]

Answer:

B. 48x - 56

Step-by-step explanation:

8(6x - 7) \\  = 8 \times 6x - 8 \times 7 \\  = 48x - 56

8 0
3 years ago
Which of the following is a list of all the possible outcomes with 2 or 3 heads?
Galina-37 [17]

Answer:

a

Step-by-step explanation:

5 0
4 years ago
All 6 members of the Valastro family have decided to
atroni [7]

Answer:

5

Step-by-step explanation:

7 0
3 years ago
The length of a rectangle is 4 yd more than twice the width x. The area is 390
masya89 [10]

Step-by-step explanation:

step 1. let l be the length of the rectangle

step 2. l = 2x + 4

step 3. lx = 390 yd^2

step 4. (2x + 4)x = 390

step 5. 2x^2 +4x = 390

step 6. 2x^2 + 4x - 390 = 0

step 7. -4 +- sqr(4^2 -4(2)(-390))/2(2) quadratic formula

step 8. (-4 +- sqr(3136))/4

step 9. (-4 +- 56)/4

step 10. x = 13yd, l = 2x + 4 = 2(13) + 4 = 30yd.

3 0
3 years ago
Other questions:
  • Solve for x. will mark brainliest ​
    9·1 answer
  • A change machine can accept $1, $5, $10, and $20 bills and returns quarters. What is the domain and range of this situation?
    7·1 answer
  • Evaluate k(t) = 13t-2 <br><br> k(3)=
    8·2 answers
  • Write a situation that can be represented by the expression 3a+6 where a=age in years
    15·1 answer
  • What is the measure of QPR
    13·1 answer
  • Help please 20 pointss
    14·1 answer
  • erin has $50. she wants to purchase a cell phone ($20) and spend the rest in music cds each cd costs $8. write an inepuality for
    13·1 answer
  • An English teacher needs to pick 4 books to put on his reading list for the next school year. He has narrowed down his choices t
    8·1 answer
  • According to the graph, is f even, odd, or neither(pic provided)?
    9·1 answer
  • When followers' needs for______ are strong, it makes them vulnerable to the dictates of abusive leaders
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!