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
Nadya [2.5K]
4 years ago
10

?????????????????????????

Mathematics
1 answer:
Leto [7]4 years ago
8 0

Answer:

\boxed{D. \: (f-g)(x) = {x}^{2} + 4x + 3}

Given:

f(x) =2 {x}^{2}  - 5 \\ g(x) =  {x}^{2}  - 4x - 8

To find:

(f - g)(x) = f(x) - g(x)

Step-by-step explanation:

\implies(f - g)x = f(x) - g(x) \\  \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:    = (2 {x}^{2}  - 5) - ( {x}^{2}  - 4x - 8) \\  \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:    = (2 {x}^{2}  - 5)  + (-  {x}^{2}  + 4x + 8) \\  \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:    = 2 {x}^{2}  - 5 -  {x}^{2}  + 4x + 8 \\  \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:    = 2 {x}^{2}  -  {x}^{2}  + 4x - 5 + 8 \\  \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:    =  {x}^{2}  + 4x + 8 - 5 \\  \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:    =  {x}^{2}  + 4x + 3

You might be interested in
Spell 7,258,630 in words
Igoryamba
That is:

Seven million, two hundred and fifty eight thousand, six hundred and thirty.
8 0
3 years ago
Read 2 more answers
Solve the equation x^2+17x+12=-3x^2 to the nearest tenth.
mote1985 [20]

Answer:

x=-\frac{17}{8}+\frac{\sqrt{97} }{8} or x=-\frac{17}{8}-\frac{\sqrt{97} }{8}

Step-by-step explanation:

x^2+17x+12=-3x^2

Add 3x^2 on both sides.

x^2+17x+12+3x^2=-3x^2+3x^2

x^2+17x+12+3x^2=0

Combine like terms;

4x^2+17x+12=0

Use the quadratic formula;

a=4

b=17

c=12

x=\frac{-b\frac{+}{}\sqrt{b^2-4ac}  }{2a}

x=\frac{-(17)\frac{+}{}\sqrt{(17)^2-4(4)(12)}  }{2(4)}

x=\frac{-17\frac{+}{}\sqrt{289-192}  }{8}

x=\frac{-17\frac{+}{}\sqrt{97}  }{8}

x=-\frac{17}{8}+\frac{\sqrt{97} }{8} or x=-\frac{17}{8}-\frac{\sqrt{97} }{8}

6 0
3 years ago
2. If y has a value of 4, give the following equation, what is the value of x? y 2<br> = 5x
myrzilka [38]

Answer:

3.2

Step-by-step explanation:

I'm not totally sure what you mean. I'm reading it as y² = 5x

So let y = 4

4² = 5x            

16 = 5x                    Divide by 5

16/5 = x

3.2 =  x

7 0
3 years ago
Translate and solve -5 times b is no less than -35
Allushta [10]

Answer:b=7

Step-by-step explanation:

To translate -5times b is not less than -35

It means

-5b>-35

To solve,divide through by -5

b=7

8 0
4 years ago
Read 2 more answers
How many pints are equivalent to 3 gallons?
Licemer1 [7]

Answer:

that would be 24 pints also could you mark me as a brainiest i would appreciate it im trying to move up in rank


3 0
3 years ago
Read 2 more answers
Other questions:
  • Aubrey says she can make a right angle with two acute angles that have a common ray. Is Aubrey correct.​
    6·1 answer
  • The second off two numberrs is 5 moree than twice the first. the sum of the numbers is 44. find the numbers
    8·1 answer
  • LU 1<br>- 2x + 3 &lt; 5 and - 4x – 3 &gt; 9​
    14·2 answers
  • Ms.white had 15 students in his first grade class
    7·1 answer
  • If y=-3x+ 10, give the ordered pair (x,y) for which the y-value is twice the x-value. PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
    9·1 answer
  • A triangle has the following vertices (-1,1), (6,-2)and (3,5) if the scale factor of 3, what will be the vertices of the image
    5·1 answer
  • John's grade increased from a 77 to an 85. What is the approximate percent increase of John's grade
    15·2 answers
  • A cyclist travels 20 km from home to the park.
    5·1 answer
  • WHAT IS THE CO-EFFICIENT OF b in the expression b^2 - b5 + 18?​
    12·2 answers
  • F(x) = x². What is g(x)?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!