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3 years ago

What are the like terms in the expression 8+x²-4x³+5x+2x²

Mathematics

1 answer:

Virty [35]3 years ago

4 0

X^2 and 2x^2 are alike.
They both have variables and the same exponent

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Match the parametric equations with the verbal descriptions of the surfaces by putting the letter of the verbal description to t

alukav5142 [94]

Answer:

1. B

2. C

3. A

4. D

Step-by-step explanation:

The parametric equations of the circular cylinder are:

$x(u,v)=a\cos v\\y(u,v)=a\sin v\\z(u,v)=u$

If the orientation of the cylinder is changed to have the height $u$ along the x-axis, the parametric equations of the cylinder match:

$3. \mathbf{r} \left( u, v \right) = u \mathbf{i} + \cos v \mathbf{j} + \sin v \mathbf{k}$

The parametric equations of the circular paraboloid are:

$x(u,v)=u\cos v\\y(u,v)=u\sin v\\z(u,v)=u^2$

Using the units vectors the parametric equations match:

$1. \mathbf{r} \left( u, v \right) = u \cos v \mathbf{i} + u \sin v \mathbf{j} + u^{2} \mathbf{k}$

The parametric equations of the cone are:

$x(u,v)=au\cos v\\y(u,v)=au\sin v\\z(u,v)=u$

Using the units vectors and rotating the base of the cone from $z=0$ to $x=0$ the parametric equations match:

$2. \mathbf{r} \left( u, v \right) = u \mathbf{i} + u \cos v \mathbf{j} + u \sin v \mathbf{k}$

The equation left is the equation of a plane:

$4. \mathbf{r} \left( u, v \right) = u \mathbf{i} + v \mathbf{j} + \left( 2u - 3v \right) \mathbf{k}$

5 0

3 years ago

Which expression can be used to calculate the rate per second at which the machine launches the balls?

notka56 [123]

Answer:

The answer is 30 over 5, 30/5

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3 years ago

Here is a night square pyramid.

Arte-miy333 [17]

I think the answer is 14 hope this helps

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3 years ago

Your answer A chef buys 5.46 pounds of ground turkey to make some casseroles. Each casserole requires 0.13 pound of turkey. How

goldenfox [79]

All you need to do is divide 5.46 by 0.13 to get 42

8 0

4 years ago

Read 2 more answers

6300/90???? PLS helpppp

dmitriy555 [2]

Answer: 70

Step-by-step explanation: 6300/90=70 Brainliest please?

4 0

3 years ago

What are the like terms in the expression 8+x²-4x³+5x+2x²​

What are the like terms in the expression 8+x²-4x³+5x+2x²