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
ollegr [7]
3 years ago
5

I need help on this math question?​

Mathematics
1 answer:
Jet001 [13]3 years ago
8 0

Answer: D

Step-by-step explanation:

From the equation given ,  ( -3)⁰(2x⁻¹y⁻¹)²

Recall :From the laws of indicies,

x⁰  = 1  ,and (xᵃ)ᵇ = xᵃ ˣ ᵇ = xᵃᵇ. and x⁻¹ = 1/ₓ

Therefore,

(-3)⁰ = 1,

( 2x⁻¹y⁻1 )² = 2²x⁻¹ ˣ ²y⁻¹ x ²

                = 2²x⁻²y⁻²

                =4x⁻²y⁻²

Now going by the law above, the expression will be

                =4/ₓ²y²

So the answer is D

               

You might be interested in
There is an attachment for my question relating to geometry...thank you for the help
Tomtit [17]
Hello I hope this helps. I'm pretty sure this is the answer.
 
Part A: C
Part B: A


6 0
3 years ago
Read 2 more answers
Algebra I<br> Evaluate each function. h ( n ) = 2 n − 5 ; Find h ( 2 )
slavikrds [6]

Answer:

h ( 2 ) = - 1

Step-by-step explanation:

<u>Two-Variable Functions</u>

A function expresses the relation between two variables in such a way that for each input for the independent variable n, there one and only one value for the function h(n). If it's explicitly given as an equation, then we can use values for n as we wish, and compute the different values of h(n).

The question provides the following function

h ( n ) = 2 n - 5

We are required to find h(2), which can be computed by replacing n by the value of 2

h ( 2 ) = 2 (2) - 5

h ( 2 ) = 4 - 5

h ( 2 ) = - 1

5 0
2 years ago
Tell whether the ratios form a proportion. 14:8 and 28:10
Dima020 [189]

Answer:

no

Step-by-step explanation:

14:8 = 14/8 = 7/4

28:10 = 28/10 = 14/5

Since the fractions are not equal, it is not a proportion.

Answer: no

5 0
2 years ago
Evaluate 4a^0 where a = -2
Paul [167]

Answer:

4a^0 = 4 \times 1 = 4

3 0
2 years ago
Read 2 more answers
in a large population, 65 % of the people have been vaccinated. if 4 people are randomly selected, what is the probability that
attashe74 [19]

The probability that at least one of them has been vaccinated is equal to 98.5% if 65% of the people have been vaccinated.

Considering P to be the probability that at least one is vaccinated and q to be the probability that none of the four are vaccinated; the sum of all the probabilities must equal 1; therefore,

P = 1 - q

As 65% of the population is vaccinated, therefore 35% are not vaccinated. Thus any person has a probability of 0.35 of not being vaccinated;

q = 0.35^4 = 0.015

P = 1 - 0.015

P = 0.985

Converting it into percentage;

P = 0.985 × 100 = 98.5%

Therefore the probability that at least one of them has been vaccinated is calculated to be 98.5%

To learn more about probability; click here:

brainly.com/question/13604758

#SPJ4

8 0
1 year ago
Other questions:
  • A closed cylindrical tank has a height of 200 cm and a diameter of 126 cm
    11·2 answers
  • THIS IS EXTREMELY URGENT PLEASE ANSWER
    6·1 answer
  • 15 3/4 is what decimal
    5·2 answers
  • The following are the weekly amounts of welfare payments made by the federal government to a sample of six families: $139, $136,
    9·1 answer
  • 37 POINTS PLEASE HELPPPPP!!!!!!
    12·1 answer
  • The temperature of a hot steak starts at 140f and decreases at 5f per minute what will the temperature of this steak after a cer
    8·1 answer
  • Bridgette got $35 for her birthday. Each week, she buys a magazine that costs $4.
    13·2 answers
  • What quadrant does the terminal side of this angle lie in?
    10·1 answer
  • Simplify the expression. (−3)^−4
    7·1 answer
  • A puppy weighs 1 pound. what does the puppy weigh after 4 weeks​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!