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
gavmur [86]
3 years ago
7

Help please and thanks

Mathematics
1 answer:
Ivan3 years ago
7 0

Answer:

-  \frac{2}{3} (x - y + 6)

-  \frac{2}{3} x  -  \frac{2}{3} x( - y) -  \frac{2}{3}  \times 6

-  \frac{2}{ 3} x +  \frac{2}{3} y - 2 \times 2

-  \frac{2}{3} x +  \frac{2}{3} y - 4

You might be interested in
A cube has an edge length of 7 centimeters.what is the lateral surface of the cube ?
IgorLugansk [536]
The answer is 196!!!!!!!
6 0
3 years ago
PLZ HURRY!!!!!!!!!!!!!<br> Simplify. <br> −4x^2(5x^4−3x^2+x−2)
Simora [160]

\bold{Answer}

\boxed{\bold{-20x^6+12x^4-4x^3+8x^2}}

\bold{Explanation}

  • \bold{Simplify: \ -4x^2\left(5x^4-3x^2+x-2\right)}

\bold{------------------}

  • \bold{Distribute \ Parenthesis}

\bold{\left(-4x^2\right)\cdot \:5x^4+\left(-4x^2\right)\left(-3x^2\right)+\left(-4x^2\right)x+\left(-4x^2\right)\left(-2\right)}

  • \bold{Apply \ Addition \ / \ Subtraction \ Rules: \ +\left(-a\right)=-a,\:\:\left(-a\right)\left(-b\right)=ab}

\bold{-4\cdot \:5x^4x^2+4\cdot \:3x^2x^2-4x^2x+4\cdot \:2x^2}

  • \bold{Simplify \ -4\cdot \:5x^4x^2+4\cdot \:3x^2x^2-4x^2x+4\cdot \:2x^2: \ -20x^6+12x^4-4x^3+8x^2}

\bold{-20x^6+12x^4-4x^3+8x^2}

\boxed{\bold{Eclipsed}}

5 0
3 years ago
You are running an experiment in class where you draw colored marbles out of a bag. There are
MaRussiya [10]

Answer:

32768 ways

Step-by-step explanation:

Given

Marbles = 8 marbles

Selection = 5 (with replacement)

Required

Determine the number of ways

Because it is a selection with replacement; each selection is as follows:

First = 8\ marbles

Second = 8\ marbles

Third= 8\ marbles

Fourth = 8\ marbles

Fifth = 8\ marbles

Total number of ways is then calculated as:

Total = 8 * 8 * 8 * 8 * 8

Total = 32768

5 0
3 years ago
Find the arc-length parametrization of the curve that is the intersection of the elliptic cylinder x 2 + y 2/2 = 1 and the plane
storchak [24]

Answer:

f(\theta) = (cos(\frac{\theta}{\sqrt2}), \sqrt2 sin(\frac{\theta}{\sqrt2}), cos(\frac{\theta}{\sqrt2})-2)

0 ≤ Ф ≤ 4π.

Step-by-step explanation:

since x²+y²/2 = 1, then x²+s² = 1, with s = (y/√2)². Hence, (x,s) = (cos(Ф),sin(Ф)) and (x,y,z) = (cos(Ф),√2 sin(Ф), cos(Ф)-2). This expression evaluated in zero gives as result (1,0,-1). The derivate of this function is (-sin(Ф),√2 cos(Ф), -sen(Ф))

the norm of the derivate is √(sin²(Ф) + 2cos²(Ф)+sin²(Ф)) = √2. In order to make the norm equal to 1, i will divide Ф by √2, so that a √2 is dividing each term after derivating.

We take

f(\theta) = (cos(\frac{\theta}{\sqrt2}), \sqrt2 sin(\frac{\theta}{\sqrt2}), cos(\frac{\theta}{\sqrt2})-2)

Note that

  • f(0) = (1,0,-1)
  • f'(\theta) = (\frac{sin(\frac{\theta}{\sqrt2})}{\sqrt2}, cos(\frac{\theta}{\sqrt2})}, \frac{sin(\frac{\theta}{\sqrt2})}{\sqrt2})

Whose square norm is 1/2cos²(Ф/2)+sen²(Ф/2)+1/2cos²(Ф/2) = 1. This is te parametrization that we wanted.

The values from Ф range between 0 an 4π, because the argument of the sin and cos is Ф/2, not Ф, Ф/2 should range between 0 and 2π.

6 0
3 years ago
Have a wonderful day :) and here are free pts to make your day better &lt;3<br> 11 x 11 = ?
Harman [31]

Answer:

121

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the volume of this cube? Enter you answer as a decimal in the box.
    5·1 answer
  • What is the distance between the points (–4, 2) and (3, –5)?
    6·2 answers
  • Write the following inequality. You are not solving it, just writing it.
    10·2 answers
  • Whats 2 plus two? fvhjgyffjfhfhfhkfkhfhgfhgkhkhfhgfhghkgkhgfgkhfhgkffkhfhkg
    14·2 answers
  • Rachel is setting up for her birthday . rachel wants to put the same number of chairs around each table . how many chairs will r
    5·1 answer
  • Which phrase represents this expression? 42−3×8
    8·1 answer
  • Could someone pls help me out? Thank u so much
    7·1 answer
  • Which of the following is the solution to the equation 25(z + 4) = 125?
    11·1 answer
  • Can someone help me? I’ll reward points + brainalist
    8·2 answers
  • Someone plz help me giving brainliest
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!