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3 years ago

What kind of boundary line represents an inequality that is < or >

Mathematics

1 answer:

ladessa [460]3 years ago

5 0

Answer:

Step-by-step explanation:

Dotted line.

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The domain of the function f(x) = -2x is restricted to the positive integers. Which values are elements of the range?

erica [24]

9514 1404 393

Answer:

{-6, -4, -2}

Step-by-step explanation:

If the domain is positive integers, <em>the range is negative even integers</em>. The only ones on the list are ...

-2, -4, -6

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3 years ago

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

Write as an equation and solve. Five times the sum of a number and -1 is the same as 6 times the difference of the number and 5.

Molodets [167]

5 (y - 1) = 6 (y - 5)

y = 25

7 0

3 years ago

When i triple my number and add five i get eleven the number i'm thinking of a number that.....

vovangra [49]

2
2*3+5=11 duh. ;l
good question though

8 0

3 years ago

The Pythagorean Theorem is _____, where the "a" and "b" are the ______ of a ______ triangle and the ______ is represented with "

Alinara [238K]

Are..... larger than the two sides and.....is equal to √(a^2+b^2) !!

4 0

3 years ago

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