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3 years ago

Consider the inequality -5(x+7)<-10 write inequality representing a solution for x

1 answer:

6 0

Perform indicated multiplication on left side first...

-5x-35<-10 add 35 to both sides

-5x<25 divide both sides by -5 (you must reverse sign because of division by a negative value too!)

x>5 or if you prefer...

x=(5, +oo)

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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:

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

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3 years ago

A participate in a 21 mile walk a Thon walks at a steady rate of 3 mph. He thinks, “the relationship between the number of miles

LiRa [457]

Answer:

Yes they can because he walking steadily for the same pace but still is moving

Step-by-step explanation:

Look up

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Answer:

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Step-by-step explanation:

As you know 2 inches=5miles so if you add 2 more inches that is equal to 5 miles you will have to add 5 and 5 which equal 10 miles.

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2 years ago

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Answer:

1.5454

Step-by-step explanation:

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