All Questions

0

2

4853

1

What is the difference between cos and cos-1, and how do I use the latter on a scientific calculator?

geno3141 ●

Guest Oct 26, 2014

0

595

2

2-x+3-5=4

2-x=4

geno3141 ●●

Guest Oct 26, 2014

0

512

3

+4

2/3÷1/3=

2/3÷1/3=?

Melody ●●●

KLOEMYGIRL Oct 26, 2014

0

477

1

Please help me! Thanks!

CPhill ●

Guest Oct 26, 2014

0

1241

2

For what values of is

For what values of is
Note: read more ..

CPhill ●●

Guest Oct 26, 2014

0

560

2

Find all values of such that . Answer with interval notation.

Find all values of such that . read more ..

CPhill ●●

Guest Oct 26, 2014

0

444

5

Find all values of such that .

Find all values of such that .
Please read more ..

Melody ●●●●●

Guest Oct 26, 2014

0

2928

6

Find all values of x that satisfy x(x+7.5) > 38.5. Give your answer as an interval. Please enter your response in interval notation. Refer t

Find all values of x that satisfy x(x+7.5) > 38.5. Give your answer as an interval. Please enter your response in interval notation. Refer to Formatting Tips below for detailed instructions on formatting your response.

CPhill ●●●●●●

Guest Oct 26, 2014

0

514

1

What is (-6)^-4?

CPhill ●

Guest Oct 26, 2014

0

434

1

what is 2x2

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Guest Oct 26, 2014

0

436

1

1/2+200=401/2=200.5 porque da 401 no entiendo

1/2+200=401/2=200.5 because it 401?, I do not understand

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Guest Oct 26, 2014

+3

1516

1

A jumping spider jumps from a log onto the ground below. Its height, h, in centimetres, as a function of time, t, in seconds, since it jumpe

A jumping spider jumps from a log onto the ground below. Its height, h, in centimetres, as a function of time, t, in seconds, since it jumped can be modelled by the function h(t) = -490t2 + 75t + 12. Where appropriate, answer the following questions to read more ..

Alan ●

Guest Oct 26, 2014

0

1728

1

Help me please!!!!

colin, dave and emma share some money. colin gets 3/(10) of the money. emma and dave share the rest of the money in the ratio 3:2. what is dave's share of the money?

Melody ●

Guest Oct 26, 2014

0

2309

1

what is tan-1 (infinity)

Melody ●

Guest Oct 26, 2014

0

855

1

+29

help please

Alan ●

ureeph123 Oct 26, 2014

0

741

1

+29

Problem

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ureeph123 Oct 26, 2014

0

592

1

+12

Voltage

Alan ●

kavindu94 Oct 26, 2014

0

427

1

how to solve an equation using this app

how to solve an equation using this app
eg x^3+x^2x1

Melody ●

Guest Oct 26, 2014

+11

594

0

+118734

I have cursorily checked most posts up to and including question page 887+ and answer page 2357+

I have cursorily checked most posts up to and including question page 887+ and answer page 2357+

There are a few that do not have answers - It is just too busy to get through all of them.
(Remember: read more ..

Melody Oct 26, 2014

0

579

1

+12

2 Quick methods please for electrical

Alan ●

kavindu94 Oct 26, 2014

+9

1

3045

1

+33668

cis for Melody

Melody, the question about cis(60)^1991 + cis(-60)^1991 + 1 = 1 seems to have disappeared, so I'll answer it here for you.

cis means cos + i*sin, so using De Moivre's theorem cis(60)^1991 is the same as cis(60*1991).
If we read more ..

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Alan Oct 26, 2014

0

1171

2

(204+202+200+......+6+4+2)-(203+201+199+......+5+3+1)

(204+202+200+......+6+4+2)-(203+201+199+......+5+3+1) =?

Alan ●●

Guest Oct 26, 2014

0

1011

1

+1313

Is this image conveying accurately?

is it accurate?
where did the 60 v come from?
do you have to draw on amp leaving battery to be correct? *fig 2.
why when take away the v source, do we leave 28 ohm when it it cannot carry current? is it just that when we cant read more ..

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Stu Oct 26, 2014

0

432

0

how to deduct one mean and standard deviation from the other mean and standard deviation

Guest Oct 26, 2014

0

2049

7

+1313

help with circuits

can anyone make then selc available to call or skype with to assist me with some cir uit fundementals tonight for an exam in the morning?

LancelotLink ●●●●●●●

Stu Oct 26, 2014

All Questions ⁺⁰237805 Questions

What is the difference between cos and cos-1, and how do I use the latter on a scientific calculator?

2-x+3-5=4

2/3÷1/3=

Please help me! Thanks!

For what values of is

Find all values of such that . Answer with interval notation.

Find all values of such that .

Find all values of x that satisfy x(x+7.5) > 38.5. Give your answer as an interval. Please enter your response in interval notation. Refer t

What is (-6)^-4?

what is 2x2

1/2+200=401/2=200.5 porque da 401 no entiendo

A jumping spider jumps from a log onto the ground below. Its height, h, in centimetres, as a function of time, t, in seconds, since it jumpe

Help me please!!!!

what is tan-1 (infinity)

help please

Problem

Voltage

how to solve an equation using this app

I have cursorily checked most posts up to and including question page 887+ and answer page 2357+

2 Quick methods please for electrical

cis for Melody

(204+202+200+......+6+4+2)-(203+201+199+......+5+3+1)

Is this image conveying accurately?

how to deduct one mean and standard deviation from the other mean and standard deviation

help with circuits

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