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1255

Just need help with c and d

(a) Compute the sums of the squares of Rows 1-4 of Pascal's Triangle. That is, compute:

Do these sums appear anywhere else in Pascal's Triangle?
(b) Guess at an identity based on your observations from part (a). Your identity read more ..

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Guest Aug 2, 2016

1181

+1836

Factor 2ab-14a+5b-35. All coefficients appearing in your factorization should be integers.

CPhill ●

Mellie Aug 2, 2016

1948

+1836

Factor xy+3x-4y-12. All coefficients appearing in your factorization should be integers.

CPhill ●

Mellie Aug 2, 2016

761

+9676

Still having some problems doing integration by parts.

http://web2.0calc.com/questions/integration-by-parts-i-don-t-know-how#r6

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MaxWong Aug 2, 2016

741

+9676

[Fun] How to give somebody 0 stars (Real method)

1st step: Give the person 5 stars. (Just for knowing where the +5 tag is. Just temporary.)
2nd step: Move the cursor to the left most star, the cursor should become something like a hand.
3rd step: Move the cursor to the left a read more ..

MaxWong Aug 2, 2016

624

if i wanted to find all possible calculations for two word combinations and there are 1,025,109.8 words in the english dictionary, would i just multiply

if i wanted to find all possible calculations for two word combinations and there are 1,025,109.8 words in the english dictionary, would i just multiply 1,025,109.8 x 1,025,109.8

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Guest Aug 2, 2016

779

If the derivative of a function f(x) is 1x^(-1), what is the derivative of 9f(x)?

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Guest Aug 2, 2016

903

+351

Math Challenge Question!!!!!!!!!(?)

Hmmmm.....
Think.. Think.. Think

EVALUATE THE EXPRESSION: read more ..

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Mathhemathh Aug 2, 2016

636

How is this worked out manually?

How is this worked out manually?
8^(5/3)

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Guest Aug 2, 2016

844

+351

If you saw the first one (a LONG time ago), then you should know the pattern:

If you saw the first one (a LONG time ago), then you should know the pattern:

read more ..

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Mathhemathh Aug 2, 2016

839

What is 2(a+8) expanded and simplified?

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Guest Aug 2, 2016

620

how come when doing 100sin120/sin90which should equal 87 its giving me the wrong answer

how come when doing 100sin120/sin90which should equal 87 its giving me the wrong answer, how do I correctly enter this into the calculator to get the correct answer

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Guest Aug 2, 2016

706

Need help I'm dumb ._.

Need help I'm dumb ._.

On July 20,1969, Neil Armstrong stepped onto the surface of the moon. On the moon him space suit and life support packs weighed only 15 kg. However the weight of anything on the moon is only 1/6 the weight on read more ..

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Guest Aug 2, 2016

936

+9676

Integration by parts. I don't know how?

Alan ●●●●●●●

MaxWong Aug 2, 2016

553

how can I rewrite this equation to get a correct answer (in km) 111.1 x acos(1.55720185)

how can I rewrite this equation to get a correct answer (in km)
111.1 x cos-1(1.55720185)

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Guest Aug 2, 2016

644

1.2 x 10^7μm

1.2 x 10^7μm
wat does this equal

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Guest Aug 2, 2016

742

Equation of a given angle in radians through a unit circle?

Is there an equation for a straight line with a gradiant m through a unit circle (x^2 + y^2 = 1).

For example if you wanted to draw a straight line through this unit circle with an angle of pi/4 radians. pi/2 radians, etc (clearly read more ..

geno3141 ●●●●●●

Guest Aug 2, 2016

547

+386

Rationnal roots

I have to find the rationnal roots for

12x^2 -6x -90
read more ..

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TonyDrummer2 Aug 2, 2016

603

maths Question

38 is added to a mystery number. The result is multiplied by 4. After that 26,729 is then subtracted . The final value is 209,423. What was the mystery number at the beginning ?

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Guest Aug 2, 2016

1623

In an attempt to document the percentage of teenagers in the United States who play video games for more than 4 hours per day, the group Concerned Citizens

In an attempt to document the percentage of teenagers in the United States who play video games for more than 4 hours per day, the group Concerned Citizens for Teenage Welfare surveyed 2,000 teenagers randomly selected from across the United States. It read more ..

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Guest Aug 2, 2016

1267

A student, following an upcoming federal election, recalls hearing the incumbent president state that "the national unemployment rate for the United States of

A student, following an upcoming federal election, recalls hearing the incumbent president state that "the national unemployment rate for the United States of America is 4.5%." The 4.5% represents ______.
A.a parameter only
B.a statistic read more ..

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Guest Aug 2, 2016

5104

Find the minimum and maximum possible areas of a rectangle measuring 2 km by 5 km. minimum area: 10 km2 maximum area 13.75 km2 minimum area: 13.75 km2 maximum

Find the minimum and maximum possible areas of a rectangle measuring 2 km by 5 km.
A. minimum area: 10 km2
maximum area 13.75 km2

B. minimum area: 13.75 km2
maximum read more ..

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Guest Aug 2, 2016

Aug 1, 2016

2884

+386

How to compare 2 logs with different bases

My question is pretty much in the title.

Let's say we have
read more ..

geno3141 ●●

TonyDrummer2 Aug 1, 2016

600

How do you simplify using In bx= Inb

How do you simplify using Inbx= x Inb

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Guest Aug 1, 2016

All Questions ⁺⁰237683 Questions

Just need help with c and d

Factor 2ab-14a+5b-35. All coefficients appearing in your factorization should be integers.

Factor xy+3x-4y-12. All coefficients appearing in your factorization should be integers.

Still having some problems doing integration by parts.

[Fun] How to give somebody 0 stars (Real method)

if i wanted to find all possible calculations for two word combinations and there are 1,025,109.8 words in the english dictionary, would i just multiply

If the derivative of a function f(x) is 1x^(-1), what is the derivative of 9f(x)?

Math Challenge Question!!!!!!!!!(?)

How is this worked out manually?

If you saw the first one (a LONG time ago), then you should know the pattern:

What is 2(a+8) expanded and simplified?

how come when doing 100sin120/sin90which should equal 87 its giving me the wrong answer

Need help I'm dumb ._.

Integration by parts. I don't know how?

how can I rewrite this equation to get a correct answer (in km) 111.1 x acos(1.55720185)

1.2 x 10^7μm

Equation of a given angle in radians through a unit circle?

Rationnal roots

maths Question

In an attempt to document the percentage of teenagers in the United States who play video games for more than 4 hours per day, the group Concerned Citizens

A student, following an upcoming federal election, recalls hearing the incumbent president state that "the national unemployment rate for the United States of

Find the minimum and maximum possible areas of a rectangle measuring 2 km by 5 km. minimum area: 10 km2 maximum area 13.75 km2 minimum area: 13.75 km2 maximum

How to compare 2 logs with different bases

How do you simplify using In bx= Inb

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