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
grigory [225]
3 years ago
15

Write the product in its simplest form: 7xy3 . (-9xy)

Mathematics
1 answer:
Naddik [55]3 years ago
3 0
The answer would be
-63x^2y^3
You might be interested in
Andria wrote the following statements:
mezya [45]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

The geometry term does each statement above represents is Statement 1 is postulate because you have to prove that corresponding angles are congruent.
6 0
3 years ago
Perimeter of rectangle is 48 inches area is 40 inches what are the length of the side
Aloiza [94]
\bf \textit{perimeter of a rectangle}=p=side+side+side+side
\\\\
or\implies p=w+w+l+l\implies p=2w+2l
\\\\
p=2(w+l)\qquad 
\begin{cases}
w=width\\
l=length\\
------\\
p=48
\end{cases}\implies 40=2(w+l)\\\\
-----------------------------\\\\
\textit{area of it}=A=w\cdot l\qquad \begin{cases}
w=width\\
l=length\\
------\\
A=40
\end{cases}\implies 40=wl\\\\
-----------------------------\\\\

\bf thus\qquad 
\begin{cases}
40=2(w+l)\to \frac{40}{2}=w+l\to\frac{40}{2}-l=\boxed{w}
\\\\
40=wl\\
--------------\\
40=\left( \boxed{\frac{40}{2}-l} \right)\cdot l
\end{cases}

solve for "l" to find its length
7 0
3 years ago
Find the angle measure and round to the nearest Tenth.<br><br> cos0 = 7/10<br><br> x = ? degrees
Ad libitum [116K]
I believe it is 45.6
5 0
3 years ago
Somebody please help! Marked Brainliest!
olga nikolaevna [1]

Answer:

Part A:

The surface area of a cylinder is given by

A=  6πr² if h= 2r

Part B:

Total Cost of covering the cylinder = Rate *2πrh + rate*2πr²

Cost of covering only the side = Rate *2πrh

Step-by-step explanation:

Part A:

The surface area of a cylinder is given by

A= 2πrh + 2πr²

Where h= height and radius = r

But we have the height twice as radius so h= 2r

So putting h= 2r we get

A= 2πr(2r) + 2πr²

A= 4πr² + 2πr²= 2πr²(2+1) = 2πr²(3)= 6πr²

Part B:

Cost = Rate * area of the wall + rate * area of the top and bottom

Cost = Rate *2πrh + rate*2πr²

Where area of the top and bottom= πr² +πr² =2 πr²

and area of the side = 2πrh

Multiplying both with the rate and then adding would give the total cost of materials needed to cover the outside of the cylinder and from top and bottom as well.

If  you do not need to cover top and bottom then the expression would be

Cost of covering only the side = Rate *2πrh

Part C:

Already done above.

4 0
3 years ago
Which Expression is equivalent to 8x - 2y + x + x
Ray Of Light [21]
8x -2y + x+x simply combine like terms 8x+ x + x= 10x therefore 10x-2y is equivalent
4 0
3 years ago
Read 2 more answers
Other questions:
  • Jensen has 95 dollars to spend on athlete shoes she wants to buy cost 59.99. If u buy one pair you get a second pair half off.ab
    5·1 answer
  • 3. Suppose that a positive integer is written in decimal notation as n = akak-1… a2a1a0 where 0 ai 9. Prove that n is divisible
    11·1 answer
  • What is 29% as a fraction
    15·2 answers
  • What is half of 1:21 in minutes
    8·2 answers
  • Richard can read 1/4 of a book in 4/5 of an hour. At this rate, how much can Richard read in one hour?
    11·1 answer
  • Which process will create a figure that is congruent to the figure shown?
    6·2 answers
  • Please help me ..........​
    13·1 answer
  • I need help please. Thank you.
    12·1 answer
  • 3 cm e a а Vizatoni hapjen e trupit të dhënë në figurë dhe gjeni syprinën e tij. nni närmasat më të vogla 2 cm 6 cm​
    5·1 answer
  • Gabriella has the following winter accessories:
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!