All Questions ⁺⁰230860 Questions

0

2

1217

4

Don't know where to start

2. Let u = 2i − 5j and v = 10i − 25j. Find (a) u+v (b) u+1v 5 (c) u·v (d) a unit vector in the direction of u (e) Are u and v orthogonal?

CPhill ●●●●

Guest Dec 3, 2015

0

596

1

Cos[arc sin( 0.8)+arc cosec(2)]. how do you determine the value of this

Cos[arc sin( 0.8)+arc cosec(2)]. how do you determine the value of this

Guest Dec 3, 2015

0

413

3

More trig question

sin(arccos(3x))?

Guest Dec 3, 2015

0

519

1

Scientific notation

I have it on tests and my teachers have always just assumed we know what it is, and everyone seems to get it but me. What is it?

Guest Dec 3, 2015

0

2634

3

trigonometry

Consider a triangle ABC like the one below. Suppose that c=41 , b=28 , and C=114° . (The figure is not drawn to scale.) Solve the triangle. Carry your intermediate computations to at least four decimal places, and round your answers to the nearest tenth. read more ..

Melody ●●●

Guest Dec 3, 2015

+5

896

2

+124

I really really don't know (Khan Academy) I've tried many times Please help me i have to get to 15% and i'm only in 8%

The quadratic expressions 92+9y+18 and 36-y2 share a common binomial factor.

What do binomal factor do they share?
read more ..

Brainfreezezeve Dec 3, 2015

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468

1

Trig function

Guest Dec 3, 2015

0

376

0

Please Help Me With This

1) The headway h can be calculated as the quotient of the spacing f in feet, which is the average distance between vehicles, and the average speed v, in feet per second, of traffic. Thus the probability that spacing is at least f feet is the same as the read more ..

Guest Dec 3, 2015

+5

1076

3

+124

IDK i already know XD

The is the squar root of 87

saseflower ●●●

Brainfreezezeve Dec 3, 2015

+5

509

1

help

6/486 simplified

Guest Dec 3, 2015

+5

708

1

+124

Khan Academy Question

Write an expression to represent:

Five minus the product of four and a number of x.

Brainfreezezeve Dec 3, 2015

+6

409

0

HELP. I DONT GET THIS :(

1) The headway h can be calculated as the quotient of the spacing f in feet, which is the average distance between vehicles, and the average speed v, in feet per second, of traffic. Thus the probability that spacing is at least f feet read more ..

Guest Dec 3, 2015

+10

412

1

looking for an answer

what is 5 over -3 times 3

Guest Dec 3, 2015

+5

422

1

MATH Help

Please help me understand this
The model is :

D = 1.26 × h^0.52 read more ..

Guest Dec 3, 2015

+5

4107

1

marcella divided 40.8 gallons of paint among 8 containers.how much paint is in the containers

marcella divided 40.8 gallons of paint among 8 containers.how much paint is in the containers

Guest Dec 3, 2015

+8

518

1

MATH Help. Thank You.

The model i found is this:
A) D = 1.26 × h^0.52

read more ..

Guest Dec 3, 2015

+5

601

1

MATH HELP PLEASE.

I found this model: by power of Reg.

A) D = 0.89 × S^1.42 read more ..

Guest Dec 3, 2015

+5

370

1

drink mix to water

how do i find tje ratio of a problem

Guest Dec 3, 2015

+5

1614

1

simplify 5+ 3.2n-6-4.8n

simplify 5+ 3.2n-6-4.8n

Guest Dec 3, 2015

+5

343

1

Legs: 12in. and 16in.

Legs: 12in. and 16in.

Guest Dec 3, 2015

+5

911

1

ratio of water to drink mix

how do I find ratio of a problem

Guest Dec 3, 2015

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