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
enot [183]
3 years ago
6

Find the solution set for this equation -a2+12a=0

Mathematics
1 answer:
lesantik [10]3 years ago
5 0
Hello,
-a²+12a=0
a²-12a=0
a(a-12)=0
a=0 or a-12=0
a=0 or a=12

The solution are: a=0 or a=12
You might be interested in
The rate of change in sales for Garmin from 2008 through 2013 can be modeled by
Zina [86]

Answer:

a) The model for the sales of Garmin is represented by S(t) = -\frac{81}{2500}\cdot t^{3} + \frac{267}{250}\cdot t^{2} - 11.9\cdot t + 47.112.

b) The average sales of Garmin from 2008 through 2013 were $ 2.5 billion.

Step-by-step explanation:

a) The model for the sales of Garmin is obtained by integration:

S(t) = -0.0972\int {t^{2}} \, dt + 2.136\int {t}\,dt -11.9 \int\,dt

S(t) = -\frac{81}{2500}\cdot t^{3} + \frac{267}{250}\cdot t^{2} - 11.9\cdot t + C (1)

Where C is the integration constant.

If we know that t = 9 and S(t) = 2.9, then the model for the sales of Garmin is:

-\frac{81}{2500} \cdot 9^{3} + \frac{267}{250}\cdot 9^{2}-11.9\cdot (9) + C = 2.9

C = 47.112

The model for the sales of Garmin is represented by S(t) = -\frac{81}{2500}\cdot t^{3} + \frac{267}{250}\cdot t^{2} - 11.9\cdot t + 47.112.

b) The average sales of the Garmin from 2008 through 2013 (\bar{S}) is determined by the integral form of the definition of average, this is:

\bar{S} = \frac{1}{13 - 8} \cdot \int\limits^{13}_{8} {S(t)} \, dt (2)

\bar S = \frac{1}{5}\cdot \int\limits^{13}_{8} {\left[-\frac{81}{2500}\cdot t^{3} + \frac{267}{250}\cdot t^{2}-11.9\cdot t + 47.112  \right]} \, dt

\bar S = \frac{1}{5}\cdot \left[-\frac{81}{10000}\cdot (13^{4}-8^{4}) +\frac{89}{250}\cdot (13^{3}-8^{3}) -\frac{119}{20}\cdot (13^{2}-8^{2}) +47.112\cdot (13-8)   \right]\bar{S} = \frac{1}{5}\cdot (-198.167+599.86-624.75+235.56)

\bar{S} = 2.5

The average sales of Garmin from 2008 through 2013 were $ 2.5 billion.

7 0
3 years ago
Starting at the 6th floor, an elevator went down 1 floor, up 6 floors, and then down 4 floors. Find the number of the floor on w
Ymorist [56]

Answer:

The answer is that the elevator stopped at the 7th floor

Step-by-step explanation:

6 0
3 years ago
Simplify 2/7 ? I neeed help will give Brainlyest
Fudgin [204]

Answer:

2/7 is already in the simplest form. It can be written as 0.285714 in decimal form (rounded to 6 decimal places).

7 0
3 years ago
If 18 more than 2 times a number is -10, what is the number?
Rudik [331]

Answer:

-14

Step-by-step explanation:

-10 - 18 = -28. -28/2= -14

3 0
3 years ago
How do i express .194 as a fraction when the 9 and 4 are repeating?
Helga [31]
If 9 and 4 are repeating in .194 it should be
__
.194
8 0
3 years ago
Read 2 more answers
Other questions:
  • 50 POINTS ! Which could be the dimensions of a rectangular prism whose surface area is greater than 140 square feet? Check all t
    9·2 answers
  • 9. An expression is given.
    6·1 answer
  • Jesus spent 1/4 of his money on a pizza and 1/4 of his money on salad. What fraction of his money did Jesus spend on dinner?
    14·2 answers
  • Multiply binomial using foil (3x-5x)(x-10)
    10·1 answer
  • I need this ASAP!!please help
    15·2 answers
  • State the Slope. State the y intercept. Write an equation in slope intercept for.
    7·1 answer
  • 10. A wire is of length 264 cm. It is bent into a circle. What is the radius of the circle so obtained. If it
    7·1 answer
  • 7th grade math angle homework
    8·1 answer
  • Y=-1,X+2y=-6 solve by substitution show all work
    9·2 answers
  • A line, y mx + b, passes through the point (2, 3) and is parallel to y 2x + 5. What is the value of b?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!