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
Alex777 [14]
2 years ago
12

Simplify the expression -4x^2(3x − 7).

Mathematics
2 answers:
satela [25.4K]2 years ago
5 0

Answer:

Step-by-step explanation:

Simplify the expression -4x^2(3x − 7).

A. -12x^3 + 28

<h2>B. -12x^3 + 28x^2<= your answer</h2>

C. -12x^3 − 28

D. -12x^3 − 28x^2

Ksivusya [100]2 years ago
4 0

Answer:

B) -12x³ + 28 x².Step-by-step explanation:

Given  : -4x²(3x − 7).

To find : Simplify the expression

Solution : We have given that

-4x²(3x − 7).

Distribute  -4x² over 3x − 7.

-4x² (3x)  -  -4x²( 7).

-12x³ + 28 x².

Therefore, B) -12x³ + 28 x².

You might be interested in
0.3643 in scientific notation
lord [1]
3.643 x 10^-1 would be the answer
7 0
3 years ago
Read 2 more answers
Which of the following situations represents a linear relationship?
dmitriy555 [2]

Answer:

Susie is losing 5 pounds every month on her diet.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Which expression is equivalent to -3(4x-2)-2x
MatroZZZ [7]

Answer:

-14x+6

Step-by-step explanation:

-3(4x-2)-2x

-12x+6-2x

-12x-2x+6

-14x+6

4 0
3 years ago
One watering system needs about three times as long to complete a job as another warning system when both systems operate at the
algol13

Answer:

One watering system requires 36 minutes to complete the job alone while another watering system requires 12 minutes to complete the job alone.

Step-by-step explanation:

Given:

Both the system can complete the job = 9 minutes

We need find the time required by each system to do the job.

Solution:

Let the time required by another watering system to complete the job be 'x' mins.

Now given:

One watering system needs about three times as long to complete a job as another watering system.

Time required by one watering system = 3x

Rate to complete the job by another watering system = \frac{1}{x}\ job/min

Rate to complete the job by One watering system = \frac{1}{3x}\ job/min

Rate at which both can complete the job = \frac{1}{9}\ job/min

So we can say that;

Rate at which both can complete the job is equal to sum of Rate to complete the job by another watering system and Rate to complete the job by One watering system.

framing in equation form we get;

\frac{1}{x}+\frac{1}{3x}=\frac19

Now taking LCM to make the denominator common we get;

\frac{1\times3}{x\times 3}+\frac{1\times1}{3x\times1}=\frac19\\\\\frac{3}{3x}+\frac{1}{3x}=\frac19\\\\\frac{3+1}{3x}=\frac{1}{9}\\\\\frac{4}{3x}=\frac{1}{9}

By Cross multiplication we get;

4\times9 =3x\\\\3x =36

Dividing both side by 3 we get;

\frac{3x}{3}=\frac{36}{3}\\\\x=12\ min

Time required by One watering system = 3x =3\times 12 =36\ min

Hence One watering system requires 36 minutes to complete the job alone while another watering system requires 12 minutes to complete the job alone.

6 0
3 years ago
Math help please show work I will make brainlist if correct thanks
emmasim [6.3K]

Step-by-step explanation:

number 1 is 68 degrees Fahrenheit and number 2 is 98.6=37 degrees Celsius and 102 fahrenheit is higher than the normal

6 0
2 years ago
Other questions:
  • What is the slope of the following equation? 5x - 2y = 13
    7·1 answer
  • If a=1 and b=3; then a3 b2- 2a
    15·1 answer
  • Please help. i’ll give brainliest
    11·2 answers
  • Need help fast best answer gets brainliest
    15·2 answers
  • The sum of two numbers is 24 and there quotent is 3
    13·1 answer
  • 1) Find the quotient:<br>(2x4 - 3x2 - 1) = (x - 1)​
    12·1 answer
  • Which of The Following Equations are true for the number 9 Select all the Apply
    7·2 answers
  • What is x ???<br><br> 3(x+2)=6
    5·2 answers
  • Select the correct answer.
    15·1 answer
  • I need help but I need the correct answer everyone is giving me the wrong answer !!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!