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
PtichkaEL [24]
3 years ago
15

Simplify the expressions plz help

Mathematics
1 answer:
Sophie [7]3 years ago
6 0

Alright, so the answer for:

 3) is 3v + 4

You might be interested in
If 3x^2 + y^2 = 7 then evaluate d^2y/dx^2 when x = 1 and y = 2. Round your answer to 2 decimal places. Use the hyphen symbol, -,
S_A_V [24]
Taking y=y(x) and differentiating both sides with respect to x yields

\dfrac{\mathrm d}{\mathrm dx}\bigg[3x^2+y^2\bigg]=\dfrac{\mathrm d}{\mathrm dx}\bigg[7\bigg]\implies 6x+2y\dfrac{\mathrm dy}{\mathrm dx}=0

Solving for the first derivative, we have

\dfrac{\mathrm dy}{\mathrm dx}=-\dfrac{3x}y

Differentiating again gives

\dfrac{\mathrm d}{\mathrm dx}\bigg[6x+2y\dfrac{\mathrm dy}{\mathrm dx}\bigg]=\dfrac{\mathrm d}{\mathrm dx}\bigg[0\bigg]\implies 6+2\left(\dfrac{\mathrm dy}{\mathrm dx}\right)^2+2y\dfrac{\mathrm d^2y}{\mathrm dx^2}=0

Solving for the second derivative, we have

\dfrac{\mathrm d^2y}{\mathrm dx^2}=-\dfrac{3+\left(\frac{\mathrm dy}{\mathrm dx}\right)^2}y=-\dfrac{3+\frac{9x^2}{y^2}}y=-\dfrac{3y^2+9x^2}{y^3}

Now, when x=1 and y=2, we have

\dfrac{\mathrm d^2y}{\mathrm dx^2}\bigg|_{x=1,y=2}=-\dfrac{3\cdot2^2+9\cdot1^2}{2^3}=\dfrac{21}8\approx2.63
3 0
3 years ago
Keith has a package of 75 marbles.He gave an equal number of marbles to each of his 8 friends. How many marbles will be left ove
Snezhnost [94]

Answer:

9

Step-by-step explanation:

6 0
3 years ago
HELP?!?
spin [16.1K]

Step-by-step explanation:

hear is answer in attachment

6 0
3 years ago
Read 2 more answers
3+(-2) is_units from 3, in ___ the<br> direction.
WARRIOR [948]
2, left direction (or negative if that’s an option)
8 0
2 years ago
Read 2 more answers
What is the slope of this line
Elenna [48]

Answer:

4

Step-by-step explanation:

rise/run = slope

As it goes to the left or adds by one, it goes up by 4

4/1

3 0
3 years ago
Read 2 more answers
Other questions:
  • A TV at an electronics store originally costs $600, but it is on sale for 30% off. If a customer buying the TV has a coupon for
    13·2 answers
  • Solve the equation 8.5 -1.2 x =6.7
    9·2 answers
  • I’m not understanding the answer listed on this site to the following question:
    6·1 answer
  • Find the slope of the line
    11·2 answers
  • How many different ways can a coach make a team of 18 players from au<br> 20 people?
    8·1 answer
  • what is the slope of the line below? If necessary, enter your answer as a fraction in lowest terms, using the slash as the fract
    6·2 answers
  • Find the rate of change from (4, 12) to (7, 17)
    15·1 answer
  • In what ratio must 40m3 be decreased to become 24m3?
    5·1 answer
  • Please help ASAP!!!
    6·1 answer
  • Sixteen players participated in a tennis tournament. Three players will be awarded for first, second, and third prize. In how ma
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!