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
wel
3 years ago
9

Simplify -9(1-10n) - 2(3n+9)

Mathematics
1 answer:
agasfer [191]3 years ago
4 0

Answer:

3 (28 n - 9)

Step-by-step explanation:

Simplify the following:

-9 (1 - 10 n) - 2 (3 n + 9)

-9 (1 - 10 n) = 90 n - 9:

90 n - 9 - 2 (3 n + 9)

-2 (3 n + 9) = -6 n - 18:

90 n + -6 n - 18 - 9

Grouping like terms, 90 n - 6 n - 18 - 9 = (90 n - 6 n) + (-9 - 18):

(90 n - 6 n) + (-9 - 18)

90 n - 6 n = 84 n:

84 n + (-9 - 18)

-9 - 18 = -27:

84 n + -27

Factor 3 out of 84 n - 27:

Answer: 3 (28 n - 9)

You might be interested in
Midpoint of the x intercepts of f(x)=(x-4)(x+4)
lorasvet [3.4K]
The x-intercept is defined to be the value of x when y is zero. Based on the graph of the function: f(x) = (x-4)(x+4), the x-intercepts are located at (-4, 0) and (4,0). At these points the graph intersects the x-axis. The midpoint of the x-intercepts is located at the middle of the two points. In this case, the graph shows that it is at the origin or at (0,0). 
5 0
3 years ago
Read 2 more answers
What does it mean to be "certain" to occur?
Luden [163]

Certain means the event will happen.

Impossible means the event would never happen.

5 0
3 years ago
The area of a square floor on a scale drawing is 36 square centimeters, and the scale drawing is 1 centimeter:4 ft. What is the
Black_prince [1.1K]
Because the area in the drawing is 36 cm^2, one side length is 6 cm.
On the actual floor, this equates to 24 ft.
This means the area of the floor in real life is 576 square feet.

Therefore the ratio is 36 square centimetres : 576 square feet.

This is the same as 1 square centimetre : 16 square feet.

8 0
3 years ago
On Wednesday at 9 a.m., Winston went diving. Near the beach, the ocean’s surface was at an elevation of -2.5 feet. During his de
Elden [556K]
20.2 * -2.5ft = -50.5ft

Hence, Winston reach -50.5 feet during his deepest dive.
7 0
3 years ago
8 of 25 Items
Nikolay [14]

Answer:

c 150

Step-by-step explanation:

hopefully this will help you out

7 0
3 years ago
Other questions:
  • Phillip picked 3/4 pounds of cherries and William picked 1/3 pound of cherries. How many more pounds of cherries did Phillip pic
    8·1 answer
  • Explain the relationship between tangent and the slope of a line
    13·2 answers
  • I am not irrational, I am an integer, I am a natural number, and I am a prime number. What number am I?
    8·2 answers
  • What is the answer for the question..?
    12·1 answer
  • Divide z by 11. Then, add 8.
    10·1 answer
  • 13 is 26%of what number<br><br> 120 is 30% of what number
    8·2 answers
  • X^2+16x+64 can anyone show the work for this and find the factor.
    12·1 answer
  • "What is the input value for which f (x) = 3?" <br><br> Please Help!!!!! URGENT!!!
    15·2 answers
  • A wheel spins at 300 revolutions per minute. What is the angular velocity of the wheel, in radians per second? Round the answer
    5·1 answer
  • 14,2,7,3,9 =10 I need help
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!