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
larisa86 [58]
3 years ago
8

(3x+6)^2 subtracted from 9

Mathematics
1 answer:
N76 [4]3 years ago
7 0

Answer:

- 9x² - 36x - 27

Step-by-step explanation:

9 - (3x + 6)² ← expand using FOIL

= 9 - (9x² + 36x + 36) ← distribute parenthesis by - 1

= 9 - 9x² - 36x - 36

= - 9x² - 36x - 27

You might be interested in
If a snowball melts so that its surface area decreases at a rate of 3 cm2/min, find the rate (in cm/min) at which the diameter d
grin007 [14]

Answer:

The diameter decreases at a rate of 0.053 cm/min.

Step-by-step explanation:

Surface area of an snowball

The surface area of an snowball has the following equation:

S_{a} = \pi d^2

In which d is the diameter.

Implicit differentiation:

To solve this question, we differentiate the equation for the surface area implictly, in function of t. So

\frac{dS_{a}}{dt} = 2d\pi\frac{dd}{dt}

Surface area decreases at a rate of 3 cm2/min

This means that \frac{dS_{a}}{dt} = -3

Tind the rate (in cm/min) at which the diameter decreases when the diameter is 9 cm.

This is \frac{dd}{dt} when d = 9. So

\frac{dS_{a}}{dt} = 2d\pi\frac{dd}{dt}

-3 = 2*9\pi\frac{dd}{dt}

\frac{dd}{dt} = -\frac{3}{18\pi}

\frac{dd}{dt} = -0.053

The diameter decreases at a rate of 0.053 cm/min.

7 0
3 years ago
How to find a
Olegator [25]
In reality your common denominator should be the Least Common Multiple. The LCM is the product of highest occurring primes of the numbers prime factorizations...

4=2*2, and 12=2*2*3.  So the LCM is 2*2*3=12  Now that you know what the least common multiple is we can say that:

(3/4)(3/3)+5/12

9/12+5/12

(9+5)/12

14/12

7/6  which should be converted to a mixed number as this is an improper fraction...

(6+1)/6

1+1/6

1 1/6
4 0
3 years ago
Read 2 more answers
Clue 1: A black line is shorter than a white line
Katyanochek1 [597]
The black line is shorter than the gray. Let's simplify the rules. (B=Black, W=White, G=Grey

B is less than W which is less than G


That means G is greater than W. B is less than W, which is less than G. Therefore, the black line is not only shorter than the Gray one, but also the shortest out of the three.

I hope this Helps!
3 0
3 years ago
PLS HELP WILL GIVE BRAINLIEST AND 5 STARS
lianna [129]

Answer:

7

Step-by-step explanation:

Initial Value is when x = 0, y = some number. In this case, your table shows that when x = 0, y = 7. So your initial value is 7 (answer choice A). Hope this helped! :D And also please mark me as brainlest! :)

4 0
3 years ago
Felipe mixes 8 oz a raven 8 oz of sunflower seeds 12 oz of almonds and 12 oz of dried fruit for a recipe how many pounds of mix
horsena [70]
2.5 is you’re answer
5 0
4 years ago
Other questions:
  • Need help asap tysm if u help! I'll mark Brainliest too :)​
    15·2 answers
  • Fill in the table! Please help! My teacher taught this the day I was absent!
    15·2 answers
  • Identify the independent variable and dependent variable in the situation:
    11·1 answer
  • Plz help me with this thank you
    6·1 answer
  • Help I Need Help Asap!
    8·1 answer
  • Which of the following describes an irrational number?​
    13·1 answer
  • AB intersects CD at point E. What is the value of X in degrees?​
    10·1 answer
  • 1 point
    9·1 answer
  • Solve the following problem. Give the equation using x as the​ variable, and give the answer.
    6·1 answer
  • Pls help! who ever solves first will be awarded brainiest!!! solve asap!
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!