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
Kitty [74]
4 years ago
8

Simplify each expression. Use positive exponents. (x–2y–4x3) –2,

Mathematics
1 answer:
Contact [7]4 years ago
5 0
The Expression is
(x^-2y^-4x³)^-2
 We can combine the x terms inside the brackets using the concept;
x ^a × x^b = x^(a+b)
Therefore, 
 (x^-2)(x^3) = x^(3-2) = x^!

Thus we get;
(xy^-4)^-2
Using the concept
(x^a)^b = x^(ab)
Therefore
 = x ^(-2×1) y^(-2×-4)
 =x^-2y^8
But using the concept; x^-a = 1/x^a
Thus, x^-2y^8 = y^8/x²
Hence the simplified equation is;
       = y^8/x²
You might be interested in
Please help
Ymorist [56]

Part C:

y = total cost

M = minutes


You can talk on the phone only 100 minutes per month

Company A:

y = 0.04M + 5

y = 0.04(100) + 5

y = 4 + 5

y = 9             $9 per month


Company B:

y = 0.10M + 2

y = 0.10(100) + 2

y = 10 + 2

y = 12          $12 per month


Company A offers the best deal because at Company A you have to pay $9 for 100 minutes per month, and at Company B you have to pay $12 for 100 minutes per month, so you have to pay $3 less.


Part D:

1.) With a budget of $30, Company A would allow me to talk longer on the phone. I know this because for Company A, you pay $3 less per month for the same amount of minutes as Company B. This means that I will save more money with Company A, and I can buy more minutes. (something like this)


6 0
3 years ago
the quality rating of 8 movies showing at a movie theater near you is 5.6, 7.9, 7.0, 5.9, 7.8, 6.2, 6.4, and 5.2. What do the ni
-Dominant- [34]

Answer:

5.6

Step-by-step explanation:

Given :

Quality rating for 8 movies :

5.6, 7.9, 7.0, 5.9, 7.8, 6.2, 6.4, 5.2

Let rating for the 9th movie = x

Average quality rating olfor the 9 movies = 6.4

To find x :

Sum of all ratings / number of ratings = 6.4

(5.6 + 7.9 + 7.0 + 5.9 + 7.8 + 6.2 + 6.4 + 5.2 + x) / 9 = 6.4

(52 + x) / 9 = 6.4

52 + x = 57.6

x = 57.6 - 52

x = 5.6

4 0
3 years ago
a golfer has the following scores for a 4 day tournament .what was the golfers total score for the tournament?
tester [92]
11 to the second power is 121
5 0
3 years ago
Find the distance between 4 2/3 and −5 1/3 on a number line. Write your answer in the simplest form.
jeka94

Answer:

3/25

Step-by-step explanation:

5 0
3 years ago
Kiran and Clare live 24 miles away from each other along a rail trail. One Saturday, the two friends started walking toward each
vivado [14]

Answer:

They would be 44.6 miles apart

Step-by-step explanation:

Here, we want to calculate how far they will be in 1 hour

Mathematically;

Distance = speed * time

In 1 hour, Kiran would have traveled a distance of 3 * 1 = 3 miles

While Clare would have traveled a distance of 3.4 * 1 = 3.4 miles

Now, we want to calculate how far apart they would be

On the 24 miles trail, Kiran would be at a distance of 21 miles to the other end

On the 24 miles Claire would be at a distance of 20.6 miles

So how far apart they would be is

24 miles + 20.6 miles = 44.6 miles

3 0
3 years ago
Other questions:
  • Solve the equation.<br> 4x - 3/5 = 2/5<br><br> A. 1/5<br> B. 5/5<br> C. 1/2<br> D. 1/4
    10·2 answers
  • 3(x-5)+4=4-2(x-1) <br><br>worked it out just need to see if answers right
    5·2 answers
  • What is the LCM of 5,6,7
    14·1 answer
  • LOL ANOTHER MATH QUESTION ASAP!!!
    15·2 answers
  • Given the diagram below, Hannah writes m1 + m4 = 180degrees,
    12·2 answers
  • What is the value of the expression x + (–y) when x = –3.8 and y = 1.7?
    14·2 answers
  • Find the mean and the median of this data set: 9, 6, 5, 3, 28, 6, 4, 7
    14·2 answers
  • 4 2/3 divided by 1/2
    14·2 answers
  • X=4/2, y=2<br> x=8, y=2<br> x=8, y=4<br> x=472,y=4<br> x=4, y=42
    13·1 answer
  • If f(x)=2x+1/x Find f^-1(x)
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!