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
Ksivusya [100]
3 years ago
7

Simplify the expression (3a^4) (-6a^3) 

Mathematics
2 answers:
stira [4]3 years ago
4 0
The answer is -18a^7
Svetach [21]3 years ago
4 0

Answer:

18<em>a</em>^7

Step-by-step explanation:

You might be interested in
What is the value of 0.6 - (0.7)(1.4)
sineoko [7]

Answer:

-0.38

Step-by-step explanation:

0.6-(0.7)(1.4)

0.6-0.98

-0.38

7 0
2 years ago
A chemist mixes a 10% hydrogen peroxide solution with a 25% hydrogen peroxide solution to create 30 liters of a 15% hydrogen per
iris [78.8K]
Let x represent the amount of 10% solution used.
Let y represent the amount of 25% solution used.

Since 30 liters of 15% solution are being made, our first equation is
x + y = 30

Now we deal with the actual peroxide in each solution.
x liters of 10% peroxide contain 0.1x liters of peroxide.
y liters of 25% peroxide contain 0.25y liters of peroxide.
30 liters of 15% peroxide contain 0.15 * 30 = 4.5 liters of peroxide.
From this information, we can write our second equation.

0.1x + 0.25y = 4.5

We have a system of equations:

x + y = 30
0.1x + 0.25y = 4.5

Multiply the first equation by -0.25 and add to the second equation.

-0.25x - 0.25y = -7.5
   0.1x + 0.25y = 4.5
---------------------------
-0.15x              = -3

x = 20

Answer: 20 liters


5 0
4 years ago
Read 2 more answers
Which is more? 15 inches or 1 foot
zubka84 [21]
1 ft = 12 inches

therefore, 15 inches is more then 1 ft
4 0
3 years ago
Read 2 more answers
F(x)=x^2+9<br> g(x)=x-9<br> find f(x)-g(x)
ololo11 [35]

Answer:

x^2 - x + 18

Step-by-step explanation:

f(x) = x^2+9

g(x) = x-9

Therefore f(x)-g(x),

= x^2 + 9 - (x - 9)

= x^2 + 9 - x +9

<h2>= x^2 - x + 18</h2><h2 /><h2 /><h2><u><em>PLEASE MARK MY ANSWER AS BRAINLIEST!!!!!</em></u></h2>
7 0
3 years ago
Could I get an explanation and some help?
True [87]
Think of it as a normal linear equation first. Let's find the slope.
m = rise/run = (3-1)/(0-1) = -2
We know the slope is negative now, so we can immediately get rid of the first two answers. Now, we know that the solutions must be under the line itself, so we can try figuring it out by testing some points. Let's use (0,0).
Is 0 </> 0+3? Since it's <, then we know the last answer is correct (y < -2x + 3).
7 0
3 years ago
Other questions:
  • This table shows the dollar amount customers have in their bank account. Which expression would give the BEST estimate of the to
    15·1 answer
  • Obby knows that the perimeter of the original rectangle is 120 meters. He also knows that the perimeter of the reduced rectangle
    10·1 answer
  • Solve the system. If there is more than one solution, write the general solution. x + y - 2z = 9 3x + y + 2z = 15 x - 5y + 22z =
    6·1 answer
  • How do the real solution of a quadratic equation show on a graph of that equation?​
    5·1 answer
  • The cross country team ran 1.797 hours yesterday and 1.56 hours today. Each member of the team ran 3.4 miles every hour. How man
    8·1 answer
  • Boris chooses three DIFFERENT numbers.
    8·1 answer
  • Can you guys help me. l will give you the brainliest and if you give me the correct answers. please show working.
    11·1 answer
  • Help asap
    9·1 answer
  • 42 cats and 14 fish what is the ratio to cats to fish
    11·2 answers
  • Help for 15 points please
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!