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
ratelena [41]
3 years ago
8

Please answer this question I need this urgent Help meeeee

Mathematics
1 answer:
iren [92.7K]3 years ago
8 0

Answer:

\frac{s}{2t}

Step-by-step explanation:

When you have exponents above a like term and they are being multiplied together, you add them.

For example:

a^{x} *a^{y} = a^{x + y}

So let's group like terms in the numerator:

4r^{3} r^{-5} s^{-2} s^{-1}t   We can add terms like in the example.

4 r^{-2} s^{-3} t

Let's rearrange the denominator.

8r^{-2} s^{-4} t^{2}

Now we have:

\frac{4r^{-2} s^{-3}t}{8 r^{-2} s^{-4} t^{2} }  Cancel like terms

4/8 = 1/2    

r^{-2} /r^{-2} = 1  So it cancels

s^{-3} / s^{-4} = s^{-1} = s Since s is raised to the -1 it goes on top and becomes s.

t / t^{2}  = 1/t

Now we combine everything back together:

\frac{s}{2t}

You might be interested in
Students took a typing test. The number of words per minute students could type are listed below. 40, 47, 25, 32, 48, 55, 33, 56
const2013 [10]

Answer:

50

Step-by-step explanation:

The median number is known as the middles number

The first step is to rearrange the set of numbers starting from the lowest

25, 32, 32, 32, 33, 40, 47, 47, 48, 55, 56

Hence the middle number is 50

8 0
2 years ago
3x - y = 7
mixas84 [53]
-3x = -3 because you would multiply one of the equations by -1 to eliminate y.
5 0
3 years ago
Ryan is selling a new computer system that he designed. He spent $200
Neporo4naja [7]

Answer:

Ryan should mark the price as $300.

Step-by-step explanation:

If he wants to markup his price by 50%, you first take 50% of $200 which is $100, then you add it to the original price 200+100= $300

4 0
2 years ago
I need help please and thank you
Anika [276]

Answer:

84 m^3

Step-by-step explanation:

Width x Hight x Length

4 0
3 years ago
Read 2 more answers
ABC is isosceles with AB=AC=8 units and BC=6 units. D and E are midpoints of AB and BC respectively. Calculate the length of DE?
Allushta [10]
The triangle is drawn and is shown in the image attached with.

We get two similar triangles. Triangle ABC and Triangle ADE. Since the triangles are similar the ratio of their corresponding sides will be the same. 

D and E are the midpoints of AB and BC, therefore, AD and AE are both 4 units in length. Using the property of similar triangles, we can say:

AD : DE= AB : BC
AD = 4 units
AB = 8 units
BC = 6 units
DE = unknown = x units

So,

4 :x = 8 : 6 \\  \\ 
 \frac{4}{x} = \frac{8}{6}  \\  \\ 
x=4* \frac{6}{8}=3 


Therefore, the length of DE will be 3 units

6 0
3 years ago
Other questions:
  • What's 10 times 3 tens
    10·2 answers
  • Determine the prime factorization of 60. A. 22 • 11 B. 2 • 32 • 5 C. 23 • 11 D. 22 • 3 • 5
    7·1 answer
  • Round 21.98 to the nearest hundredth
    13·2 answers
  • A school playground is in the shape of a rectangle 500 feet long and 100 feet wide. If fencing costs $12 per? yard, what will it
    5·1 answer
  • A batch of 140 semiconductor chips is inspected by choosing a sample of 5 chips. assume that 10 of the chips do not conform to c
    15·1 answer
  • Find the simplest expression for the perimeter of the triangular roof truss.
    7·1 answer
  • The expression that represents the area of this rectangle is . When b = 10, the area of the rectangle is square units.
    10·1 answer
  • How do you factor 130x - 13. Please show work
    13·2 answers
  • A city has a 5% sales tax.
    7·1 answer
  • Find the value of each variable. If your answer is not an integer, write it in simplest radical form with the denominator
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!