All Questions

0

842

1

19) 2 + 6 + (−7) + 10 20) (−5) + (−8) + (−2) + 1 21) (−6.8) + (−1.9) 22) 2.489 + (−4.3) 23) (−4.7) + 5.7 24) (−5) + (−7.1) 25) (−3.9) + 7.1

19) 2 + 6 + (−7) + 10 20) (−5) + (−8) + (−2) + 1 21) (−6.8) + (−1.9) 22) 2.489 + (−4.3) 23) (−4.7) + 5.7 24) (−5) + (−7.1) 25) (−3.9) + 7.1 + (−7.8) 26) (−4.5) + 4.9 + 3.4 22 (−2.1) + (−1) + (−7.6) 28) 0.85 + (−2.4) + 4.5

math arithmetic

NinjaDevo ●

Guest Aug 22, 2014

0

633

2

+4

Trigonometry problem

A 20 ft. extension ladder leans up to a building at a 65 degree angle with the ground. How high up does the ladder reach?

math

●●

younginc Aug 22, 2014

0

1018

1

what is the exact radian measure of 112.5 degrees?

math

CPhill ●

Guest Aug 22, 2014

0

527

2

SAT Question Need Help Please!!!

If 100*10^6 + 0.3*10^k = 1.3*10^8, what is the value of k?

math algebra

Melody ●●

Guest Aug 22, 2014

0

607

1

Solve 5 2 1 4 5 2 x x ( + ) + = 5x – 1

solve

(5(2x+1))/4x+5 = 5x-1

math algebra

Melody ●

Guest Aug 22, 2014

0

783

1

7/12 ÷ 3/4 =

math arithmetic

NinjaDevo ●

Guest Aug 22, 2014

0

624

1

how does this work

Login as existing userNinjaDevo
Post as AnonymousMelodyCPhilladminAlanradixrosalaAzizHusainkitty<3 Rom +1657 reinout-g +1515 zegroes +1406 Sticky Topics Topic Categories Great answers to learn from Reference Material read more ..

Melody ●

Guest Aug 22, 2014

0

740

1

(4x+3)^2\2=72 and x > 0 then x =?

help me study for the ged plz

math algebra

CPhill ●

Guest Aug 22, 2014

0

593

1

what does this symbol mean : ?

math arithmetic

CPhill ●

Guest Aug 22, 2014

0

1019

8

+1832

physics !! 7 questions ..

I need help in these questions in details

read more ..

physics

Alan ●●●●●●●●

xvxvxv Aug 22, 2014

0

655

1

Help with making X the Subject ~ASAP

How to find X in this equation;

x/a = 1+ x/b
read more ..

CPhill ●

Guest Aug 22, 2014

0

943

1

3(0.5x+0.4y)+15(0.3x-0.8y)

Will85237 ●

Guest Aug 22, 2014

+5

724

1

+1313

simplifying a differential equation

Hi, this is what our team derived from delta:f=ma. v(t) = ((m∙g/k)^(½) ∙ (e^(2∙(m∙g/k)^(½) ∙ ((m/k)∙t + c)) + 1) / ((1 - e^(2∙(m∙g/k)^(½) ∙ ((m/k)∙t + c))).
It is correct in our opinion. I am pretty certain that there is unneccesary brackets so read more ..

Stu ●

Stu Aug 22, 2014

0

1243

2

+546

6)Find the mean, variance, and standard deviation for each data set. 6. 78 90 456 673 111 381 21

6)Find the mean, variance, and standard deviation for each data set. 6. 78 90 456 673 111 381 21

10)The Dow Jones Industrial average for the first 12 weeks of 1988: find the mean and standard deviation!: 1911.31 1956.07 1903.51 read more ..

math statistics

Melody ●●

Nataszaa Aug 22, 2014

0

1750

3

+546

Algebra 2!

10) identify the outlier: 17, 21, 19, 10, 15, 19, 14, 0, 11, 16

12) Make a box- and- whisker plot for each set of values. 12. 12 11 15 12 19 20 19 14 18 15 16
read more ..

math statistics

Melody ●●●

Nataszaa Aug 22, 2014

+4

724

3

+118727

@ I have NOT checked most posts up to and including question page 621+ and answer page 1683+

@ I have NOT checked most posts up to and including question page 621+ and answer page 1683+
BUT I have checked that they all (almost all) appear to have received a satisfactory answer.
(That doesn't mean that there can't be errors read more ..

rosala ●●●

Melody Aug 22, 2014

+3

955

1

+676

For Bored Mathematicians

Looks like all of the unanswered questions have all been answered... Well.. I might shove a question onto here because the to-do list seems empty...
It was an old question I remember from Early High School. Lets see what read more ..

Melody ●

TakahiroMaeda Aug 22, 2014

0

1996

6

csc(2a)-cot(2a)=tan(a) csc(2a)-cot(2a)=tan(a)=1/Sn(2a)-cos(2a)/Sn(2a)=

csc(2a)-cot(2a)=tan(a)
csc(2a)-cot(2a)=tan(a)=1/Sn(2a)-cos(2a)/Sn(2a)=

math

Melody ●●●●●●

Guest Aug 22, 2014

0

904

1

is 3a + 2b +2a equal to 5a + 2b

is 3a + 2b +2a equal to 5a + 2b
thx

math algebra

TakahiroMaeda ●

Guest Aug 22, 2014

+5

818

2

+118727

A note to Admin

I think there is a glitch in the calculator output.
That minus sign in the working should not be there.
Also,
1) can we get a scientific notation display alternative for the forum calulator. I don't think it read more ..

info

admin ●●

Melody Aug 22, 2014

0

677

2

(9.09x10to the 8 power)-[(6.33x10to the 9th power)]x(4.06x10to the -7power)] =

Melody ●●

Guest Aug 22, 2014

0

14

1783

2

+97

Find the most left and right tangent ?

The question:
y=3.48x^2, determine the positionson the curve (x,y) of the left most tangent and the right most tangent that pass through the point (-5.67, -44.75).
If there is no tangent for either the left or right, just say none.
Round read more ..

math

heureka ●●

Oli96 Aug 22, 2014

0

662

1

6 ft 7 inches x 8 ft = ? of sq ft

math

CPhill ●

Guest Aug 22, 2014

0

5608

1

is 0.5 an integer

CPhill ●

Guest Aug 22, 2014

All Questions ⁺⁰237722 Questions

19) 2 + 6 + (−7) + 10 20) (−5) + (−8) + (−2) + 1 21) (−6.8) + (−1.9) 22) 2.489 + (−4.3) 23) (−4.7) + 5.7 24) (−5) + (−7.1) 25) (−3.9) + 7.1

Trigonometry problem

what is the exact radian measure of 112.5 degrees?

SAT Question Need Help Please!!!

Solve 5 2 1 4 5 2 x x ( + ) + = 5x – 1

7/12 ÷ 3/4 =

how does this work

(4x+3)^2\2=72 and x > 0 then x =?

what does this symbol mean : ?

physics !! 7 questions ..

Help with making X the Subject ~ASAP

3(0.5x+0.4y)+15(0.3x-0.8y)

simplifying a differential equation

6)Find the mean, variance, and standard deviation for each data set. 6. 78 90 456 673 111 381 21

Algebra 2!

@ I have NOT checked most posts up to and including question page 621+ and answer page 1683+

For Bored Mathematicians

csc(2a)-cot(2a)=tan(a) csc(2a)-cot(2a)=tan(a)=1/Sn(2a)-cos(2a)/Sn(2a)=

is 3a + 2b +2a equal to 5a + 2b

A note to Admin

(9.09x10to the 8 power)-[(6.33x10to the 9th power)]x(4.06x10to the -7power)] =

Find the most left and right tangent ?

6 ft 7 inches x 8 ft = ? of sq ft

is 0.5 an integer

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