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
Darina [25.2K]
3 years ago
12

11.(4 pts) Given: A = 6x - x2 + 4x +8 and B= 2x3+x-5 Find a) A+B b) A-B

Mathematics
1 answer:
vivado [14]3 years ago
3 0

Answer:

a. 2x3-x2+11x+3

b.-2x3-x2+9x+13

Step-by-step explanation:

You might be interested in
What is the simplified form of (2 X 102)2 in standard notation? Do not use commas in your answer. (HAS TO BE A NUMBER)
Oxana [17]

Answer:

40000

Step-by-step explanation:

(2 \times  {10}^{2} )^{2}  \\  =  {2}^{2}  \times  {10}^{2 \times 2} \\  = 4 \times  {10}^{4}  \\  = 40000

7 0
3 years ago
consider the equation is Y equals 1/square root of x and y=x-2. approximate solution of the system equations
emmasim [6.3K]

Answer:

x=1 and x=4

Step-by-step explanation:

We have the following system of equations:

y=\sqrt{x} and y=x-2

To solve the problem, we need to equal the two equations:

x-2=\sqrt{x} ⇒ (x-2)^{2} =x ⇒ x^{2} -4x + 4 = x  

⇒ x^{2} -5x + 4 = 0  

So you need to find two numbers that added equal to 5 and multiplied equal to 4. These two numbers are x=-1 and x=-4.

Then, the factorized form of the polynomial is: (x-1)(x-4).

The, the solution to the system of equations is: x=1 and x=4.

5 0
3 years ago
Evaluate the function below for f(-6) *<br> f (x) =<br> -x + 11<br> what’s the answer
Drupady [299]
Your answer would be 5
5 0
3 years ago
Help me please! which bisects the chord?
8_murik_8 [283]

Answer:

B. 3

Step-by-step explanation:

Since you are given that chord AB's length is 8 and is bisected by segment XC, that means segment BC's length is 4 and ∠XCB is a right angle. From there, we use Pythagorean Theorem to solve for length XC:

4² + b² = 5² (Or remember 3-4-5 makes a Pythagorean triple)

c = √(5²-4²)

c = 3

6 0
3 years ago
You fill a 100 mL graduated cylinder with 38.5 mL of water. What is the volume?
larisa [96]

Answer:

38.5cm³

Step-by-step explanation:

1ml = 1cm³

38.5ml = 38.5cm³

7 0
3 years ago
Other questions:
  • To fit between two windows, the width of a bookshelf must be no greater than 6 1/2feet. Mrs.aguilar purchases a bookshelf that i
    10·1 answer
  • What is the value of x??
    14·2 answers
  • Brady studied 1.5 hours on Monday, 0.75 hours on Tuesday, 1.25 hours on Wednesday, and 1 hour on Thursday. How many total hours
    9·2 answers
  • How would you get -21 as an answer for 15 x -10 x 4
    6·1 answer
  • Determine the surface area of this
    8·2 answers
  • I need this done today whoever gets this correct gets brainliest!!! PLZZ HELPP MEE!!!<br> hurryy!!
    7·2 answers
  • A researcher wishes to estimate the proportion of X-ray machines that malfunction. A random 275 sample of machines is taken, and
    9·1 answer
  • HELP PLSSSS !!! BRAINLIEST, EXTRA POINTS, !!!
    10·2 answers
  • List 5 fractions that are between 1/3 and 4/5
    15·1 answer
  • Without actual calculating the cubes, evaluate using identities:<br> <img src="https://tex.z-dn.net/?f=-11%5E3%2B8%5E3%2B3%5E3"
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!