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
MissTica
3 years ago
9

What is the answer to this 3a^2-9a

Mathematics
2 answers:
olchik [2.2K]3 years ago
4 0
If i'm correct, the answer should be

-3a

hope this helped! 8)

Nikolay [14]3 years ago
3 0

ANSWER:

{3a}^{2}  - 9a \\  =  {( \sqrt{3} a)}^{2}  -  {(3 \sqrt{a}) }^{2}  \\  = using \: formula \:  {a}^{2}  -  {b} = (a + b)(a - b) \\  = ( \sqrt{3} a + 3 \sqrt{a} )( \sqrt{3} a - 3 \sqrt{a} )

HOPE IT HELPED YOU ☺

You might be interested in
Look at pic read please help!!
atroni [7]

okay i dont know lololololokjdgshbnjhcdgsjfre

5 0
3 years ago
In abc above,what is the length of ad​
Nezavi [6.7K]

Answer:

B

Step-by-step explanation:

First calculate BD using sine ratio in Δ BCD and the exact value

sin60° = \frac{\sqrt{3} }{2}, thus

sin60° = \frac{opposite}{hypotenuse} = \frac{BD}{BC} = \frac{BD}{12} = \frac{\sqrt{3} }{2} ( cross- multiply )

2BD = 12\sqrt{3} ( divide both sides by 2 )

BD = 6\sqrt{3}

-----------------------------------------------------------

Calculate AD using the tangent ratio in Δ ABD and the exact value

tan30° = \frac{1}{\sqrt{3} } , thus

tan30° = \frac{opposite}{adjacent} = \frac{AD}{BD} = \frac{AD}{6\sqrt{3} } = \frac{1}{\sqrt{3} } ( cross- multiply )

\sqrt{3} AD = 6\sqrt{3} ( divide both sides by \sqrt{3} )

AD = 6 → B

4 0
3 years ago
The exponential model A = 661.7 e^0.011t describes the population, A, of a country in millions, t years after 2003. Use the mode
faust18 [17]

Answer:

661.7 million

Step-by-step explanation:

Given the exponential model :

A = 661.7 e^0.011t

The general form of an Exponential model is expresses as :

A = A0 * e^rt

Where A = final value ; A0 = Initial value ; r = growth rate and t = time elapsed

From the question t = time after 2003

Therefore, A0 = initial population, which is the population in 2003

Therefore, A0 = 661.7

Or we could put t = 0 in the equation and solve for A

A = 661.7 e^0.011(0)

A = 661.7 * 1

A = 661.7

Hence, population in 2003 is 661.7 million

7 0
3 years ago
Evaluate .write your answer as a fraction or whole number .<br> (1/2)2
Eduardwww [97]

Answer:

1

Step-by-step explanation:

One-half two times is equal to 2/2, or 1.

6 0
3 years ago
Can someone please help me with this ASAP?<br> THANKS SO MUCH
Mice21 [21]

Answer: 25

Step-by-step explanation:

B=3÷5×100

 =60

D=0.35×100

  =35

so,    B-D=60-35

              25

4 0
2 years ago
Other questions:
  • The length of a rectangle is 3 m less than twice the width, and the area of the rectangle is 14 m2 . find the dimensions of the
    11·1 answer
  • Which statement is true about the potential
    14·2 answers
  • A study by a reputable research organization found that when presented with prints from the same​ individual, a fingerprint expe
    11·1 answer
  • Henry counted units to find the distance between two points. For which pair of points could he have done this? Select all that a
    13·2 answers
  • Help due soon <br> find the area using 3.14 for π<br> round to the nearest Hundredth if you have too
    15·1 answer
  • GIVING BRAINLIEST HELP ASAP!! 3x + 5y = 12 in slope intercept form please show work
    6·1 answer
  • Find the value of x.
    13·2 answers
  • Naomi says that the graph represnts a proportional relationship because it is a straight line. Is Naomi reasoning correct explai
    12·1 answer
  • Please someone help???ty!!
    12·1 answer
  • Situation:A researcher in North America discoversa fossile that contains 65% of its originalamount of C-14..-ktN=NoeNo inital am
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!