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
lions [1.4K]
3 years ago
8

Add. x−2x2−6x+8+x−4x2−16

Mathematics
1 answer:
Anastaziya [24]3 years ago
3 0
Step 1. Gather like terms

(x-6x+x)+(-2 x^{2} -4 x^{2})+8-16

Step 2. Simplify

-4x-6 x^{2}+8-16

Step 3. Simplify

-4x-6 x^{2}-8

Done!
You might be interested in
Matsuki is very very bored...<br><br> 34 + 35 x (60/2) - (40/2) = ?
allsm [11]

I believe the answer is 1064.

P.s. your cute matsuki <3

4 0
3 years ago
2. A sphere has surface area 16π. Find the radius of the sphere.
KiRa [710]

Answer:

The answer to your question is: 2.29 units

Step-by-step explanation:

Data

Volume = 16π

radius = ?

Formula

V = \frac{4}{3}π r^{3}

Process

                         16 π =  \frac{4}{3}π r^{3}

                         \frac{16(3)}{4} = r^{3}

                         r³ = 12

                        r = 2.29

7 0
3 years ago
Simplify the expression-9+7<br><br> -2<br><br> 2<br><br> 16<br><br> -16
bogdanovich [222]
- 9 + 7

-2

if you need more details, please leave me a comment
6 0
3 years ago
Read 2 more answers
Help me! I need a better explanation!
jonny [76]
1) Those are polar coordinates

2) The expression inside cosine is the angle of the vector to be drawn

3) r is the length of the vector to be drawn.

For example:

- if you take angle =0 and r results to be =2, it means that you have to put a point over the x-axis at a distance of two units from the origin.

4) You have to look for notable values, like points on the axis and notable angles (0, 45°, 90°, 180 °,...)

5) Use derivation to find maximum and minimum values. 

6) The graph of this function looks like the infinite symbol: ∞

7) Some notable points are: (0,0) ; (0,2) ; (0, - 2)

See attached the complete graph as a reference.




Download docx
6 0
3 years ago
Neil says his favorite number is 19 units from Sasha's favorite number on the number line. What are the two possibilities for Ne
Ivahew [28]
His favorite number could be either 0 or 38.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Jonathan worked at mcdonalds 20 hours pet week and earned 195.Use the equation 20h=195 to find jonathan's hourly wage
    6·2 answers
  • A winter coat was originally $65 and is now marked up by 2% . What is the price after the markup?
    5·1 answer
  • A herd of cattle started with a population of 10,000 and was 20,000 after 10 years. If the population was growing exponentially,
    10·1 answer
  • A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B an
    12·2 answers
  • HELP!! VERY TIME TIME SENSITIVE
    14·1 answer
  • A survey all beings on plant Kent found that 20 beings preferred Freon juice to all other juices. If 50 beings surveyed altogeth
    7·1 answer
  • Solve for x in the diagram below
    5·1 answer
  • Fully Factorise 3x-12
    8·1 answer
  • Please help with these questions!
    13·1 answer
  • Could someone pls answer
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!