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
Reika [66]
3 years ago
14

Need help with this been trying to solve it

Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
5 0
\bf \left.\qquad \qquad \right.\textit{negative exponents}\\\\
a^{-{ n}} \implies \cfrac{1}{a^{ n}}
\qquad \qquad
\cfrac{1}{a^{ n}}\implies a^{-{ n}}
\qquad \qquad 
a^{{{  n}}}\implies \cfrac{1}{a^{-{{  n}}}}\\\\
-------------------------------

\bf \cfrac{\frac{x}{3y}\cdot \frac{3xy}{5}}{\frac{4y^2}{5x^2}}\implies 
\cfrac{\quad \frac{3x^2y}{15y}\quad }{\frac{4y^2}{5x^2}}\implies \cfrac{3x^2y}{15y}\cdot \cfrac{5x^2}{4y^2}\implies \cfrac{\underline{15} x^4y}{\underline{15}\cdot 4y^3}\implies \cfrac{x^4y^1}{4y^3}
\\\\\\
\cfrac{x^4}{4y^3y^{-1}}\implies \cfrac{x^4}{4y^{3-1}}\implies \cfrac{x^4}{4y^2}
alukav5142 [94]3 years ago
3 0
The answer is x^2y^2/5x^2 / 20.
You might be interested in
What is the simplified form of the quantity y-squared plus 7y plus 12 over the quantity y-squared plus 8y plus 15
Burka [1]
Firstly, let's factorise each equation individually - to do this, find 2 numbers that when summed add to the value of the second term, and when multiplied give the value of the third term.

7 and 12 give us 4 and 3 (4+3=7, 4*3=12) -- 8 and 15 give us 5 and 3 (5+3=8, 5*3=15)

Now we can rewrite these equations as (y+4)(y+3) and (y+5)(y+3) respectively.

Putting this in a fraction: (y+4)(y+3)/(y+5)(y+3) -- We can clearly see that there is a y+3 on both sides of the fraction, and given there are no terms outside of the brackets being multiplied, we can directly cancel.

This gives us our final answer:
(y+4)/(y+5)
8 0
3 years ago
Which diagram represents the vector addition C=A+B. Which represents vector subtraction C=A-B?
olga55 [171]
If the vectors point towards the same direction, the magnitude of the vector quantities are added as in, C = A + B. If they point towards opposite direction, the magnitudes are subtracted giving a resultant vector equal to C = A - B. 
3 0
3 years ago
The original height of the leaning tower of pisa was 184.5 feet. at a distance of 140 feet from the base of the tower, the angle
NeTakaya
The answer is D. 9.1
8 0
3 years ago
the temperature is already at 40 degrees it rises 4.5 degrees per minute how long will it take to get to 76 degrees​
Andrei [34K]

Answer:

It will take 8 minutes for the temperature to reach 76°

Step-by-step explanation:

The expression for the total temperature in degrees at time t can be written as;

T=I+EM

where;

T=total temperature

I=initial temperature

E=temperature increase per minute

M=number of minutes

This can also be written as;

total temperature=initial temperature+temperature increase per minute×number of minutes

In our case;

T=76°

I=40°

E=4.5°

M=m

replacing;

76=40+(4.5×m)

4.5 m=76-40=36

(4.5 m)/4.5=36/4.5

m=8

It will take 8 minutes for the temperature to reach 76°

7 0
3 years ago
What is the answer to this in cm
jasenka [17]
The hardest part is finding the length of the curve at the top. To find arc length, multiply the circumference by the arc angle divided by full angle (360°) in a circle. Or:
s = (2\pi  r)( \frac{x}{360})
x, the arc angle in a semicircle, is 180°.
r, the radius is 7/2 = 3.5.
Now just plug the numbers in and solve for arc length, s.

s = 2π(3.5)(1/2) ≈ 11.00

Now just add up all the sides. 11cm + 10cm + 10cm + 7cm = 38 cm.
5 0
3 years ago
Other questions:
  • Transform the equation to isolate x: ax = bx + 1. How is
    9·2 answers
  • What is15 qt/h= gal min
    6·2 answers
  • Which mixed number is greater than 6.78?
    8·2 answers
  • Natalie drinks 2 pints of milk each day. How many days does it take her to drink 1 gallon of milk? PLZ HELP
    9·1 answer
  • Which is the definition of a ray?
    13·2 answers
  • The ratio of green M&M's to yellow is 2:5 If there are 84 M &M's in the bag all together, how many are green
    9·2 answers
  • 3 km/min ≈ ? mi/h please hurry
    7·1 answer
  • BRAINLY GET READY! I HAVE EXAMS NEXT WEEK! I WILL NEED HELP PLEASEEEE!!!. MATH BIOLOGY ELA CRIMINOLOGY!!!!!!​
    6·2 answers
  • Plsss need help now. Will give brainliest :) ​
    12·1 answer
  • (Will Give Brainliest) −2(4
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!