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
Radda [10]
2 years ago
13

Which choice is equivalent to the expression below? 4^-2

Mathematics
2 answers:
Bond [772]2 years ago
7 0

Answer:

A.  1/16

Step-by-step explanation:

a^-n = 1/a^n

4^-2 = 1/4² = 1/16

iVinArrow [24]2 years ago
6 0

Answer:

c

Step-by-step explanation:

cuz i looked it up

You might be interested in
Y=1/2x-3,y=x-5<br>I've been trying for hours pls help me with the elimination method​
Ilia_Sergeevich [38]

The solution is x = 4 and y = -1

Step-by-step explanation:

The system of equation is:

  • y = \frac{1}{2} x - 3
  • y = x - 5

To solve it using the elimination method do that

∵ y = \frac{1}{2} x - 3 ⇒ (1)

∵ y = x - 5 ⇒ (2)

- Subtract equation (1) from equation (2) to eliminate y

∵ y - y = (x - \frac{1}{2} x) - 5 - (-3)

- Remember (-)(-) = (+)

∴ 0 = \frac{1}{2} x - 5 + 3

∴ 0 = \frac{1}{2} x - 2

- Add 2 to both sides

∴ 2 = \frac{1}{2} x

- Multiply both sides by 2

∴ 4 = x

∴ x = 4

- Substitute the value of x in equation (1) or (2) to find y

∵ y = 4 - 5

∴ y = -1

The solution is x = 4 and y = -1

Learn more:

You can learn more about the system of linear equations in brainly.com/question/2115716

#LearnwithBrainly

7 0
4 years ago
Need help with this quick
OLEGan [10]

Answer:

~24.4%

Step-by-step explanation:

A circle is 360 degrees, we all know this.

The angle representing Techno is 28° While Country has a 60°. Combine this and we get 88° of people total chose country or techno. 88° divided by 360° gives us 0.2444444... With percentages, we move the decimal two places to the right, giving us:

~24.4%

7 0
3 years ago
Solve the system by substitution.<br> y=2x<br> -3x + 8y =26
Anna [14]

Answer:

if y = 2x then

-3x+8y=26

-3x + 8·2x= 26

-3x+16x=26

13x=26

x = 26/13= 2

5 0
3 years ago
A microwave oven costs $124.85 before it is marked down. If it is marked down by 63%, what is its new price, to the
Aleksandr [31]

Answer:

D ($46.19)

Step-by-step explanation:

$124.85 * (100% - 63%)

= $124.85 * 37 %

= $124.85 * 0.37

= 46.1945

= $46.19 (to the nearest cent)

Hope this helped!

5 0
3 years ago
Read 2 more answers
Find the distance between the points (-6,1) and ( 2,1) <br> ( step by step )
CaHeK987 [17]
The distance is 5.099
5 0
3 years ago
Other questions:
  • Please help with these questions!!!!
    11·1 answer
  • Credit card A has an APR of 26.2% and an annual fee of $30, while credit card B has anAPR of 27.1% and no annual fee. ALl else b
    15·2 answers
  • E^x not equal to zero
    7·1 answer
  • 8 is subtracted from the square of a number
    14·2 answers
  • PLEASE HELP
    9·2 answers
  • What times 3 equals 4?
    11·1 answer
  • a can of soft drink weighs 340g when rounded off to the nearest whole number, what is the lowest possible weight of the can of s
    10·1 answer
  • The perpendicular bisectors of AABC intersect at point<br> G. Find the length of BG.<br> B
    7·1 answer
  • Which of the following statements represents a valid argument?
    7·1 answer
  • Sun works in a bakery and wants to know how many ounces of flour are in 5 flour sacks. If each sack contains 52 lbs of flour, ho
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!