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510

Multiplying Matrices

Please help! This is wayy complicated for me! Could you include some steps? Thanks~

Guest Oct 18, 2019

827

+134

If Your New Here Come See What You Can Do!!!

If your new go learn about Web2.0Calc down bellow in Sticky Topics. Click Welcome to web2.0calc to get the rules and also to learn how to become a helper.

read more ..

off-topic

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killersteve27 Oct 18, 2019

1194

+1983

Determine the perimeter of the shape if 1 unit = 1 foot.

Determine the perimeter of the shape if 1 unit = 1 foot.
A) 8 feet read more ..

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macabresubwoofer Oct 18, 2019

1585

+1983

Determine the length of side CB.

Determine the length of side CB.
A) 3 read more ..

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macabresubwoofer Oct 18, 2019

1451

+1983

Use the diagram to determine which statement is true.

Use the diagram to determine which statement is true.
read more ..

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macabresubwoofer Oct 18, 2019

1853

+1983

Given that ∠ABD = 76, which equation could be used to solve problems involving the relationships between ∠DBC and ∠ABC?

Given that ∠ABD = 76°, which equation could be used to solve problems involving the relationships between ∠DBC and ∠ABC?
read more ..

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macabresubwoofer Oct 18, 2019

783

Really Need Some Help

What are the lower and upper fences of these 2 box plots? And are there any EXTREME outliers?

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Guest Oct 18, 2019

616

Sum of odd digits

What is the total sum of the ODD digits of all 5-digit integers?That is:10,000 to 10,005 =1 + 1 + 1 + 3 + 5.....etc. all the way to 99,999. Thanks a lot.

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Guest Oct 18, 2019

840

Help please!

These are links for 2 questions I post here but didn’t get any responses for them :( Please help if you can!
https://web2.0calc.com/questions/need-help-please_31
https://web2.0calc.com/questions/help-please_38885 read more ..

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Guest Oct 18, 2019

740

???

I can't post
It says internal server error

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Guest Oct 18, 2019

851

Sequence

What are the next 3 terms of the following sequence: 1, 2, 3, 5, 7, 11, 15, 22, 30, 42,.....etc.
Thank you for any help.

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Guest Oct 18, 2019

946

+168

Price from just the VAT (20%)

VAT is 20%

If the VAT is £31.31 what is the net or gross price?
read more ..

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Walthamx Oct 18, 2019

530

Multiply the Matrices

This one is super confusing for me! Could you write some steps in the answer? Thanks!! ^.^

Guest Oct 18, 2019

747

Help pls

We know DE || BC. Given [ADE]=9 and [CDE]=6, find [ABC]

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Guest Oct 18, 2019

1159

Help?

How many integers satisfy $-4 \le 2x+1 \le 6$?

Thanks,

KnockOut ●●●●

Guest Oct 18, 2019

1674

+707

how do i reflect a point across a specific line...

lets say for example we want to reflect point (-6,-4) which is A
and lets say we want to reflect it across like line y=-4x-4
how would you find A'??
thank you so much i dont understand how this works :_((

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Nirvana Oct 18, 2019

991

+707

why aren't all lines of symmetry also diagonals?

title says it all...
Im confused i don't get why...

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Nirvana Oct 18, 2019

1371

My seventh grade stupidity

I need help on this question don't judge people I'm in 7th grade. Here's the question.
An object is traveling at a steady speed of 9 9/10km/h. How long will it take the object to travel 5 1/10km?
Someone please help me I'm really read more ..

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Guest Oct 18, 2019

877

+158

Quad Prac.

For integers "a" and "T, " a parabola whose general equation is "y=ax^2+bx+c" passes through the points "A=(0,0),B=(2T,0), and C=(2T+1, 28)". Let "N" be the sum of the coordinates of the vertex point. Determine the largest value of "N". read more ..

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AoPS.Morrisville Oct 18, 2019

874

Help pls

Right triangle ABC has side lengths AB=3, BC=4, and AC=5. Square XYZW is inscribed in triangle ABC with X and Y on AC, W on AB, and Z on BC. What is the side length of the square?

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Guest Oct 18, 2019

1243

+158

Find the values of k for which [2x^2 + kxy + 3y^2 - 5y - 2]factors into two linear factors.

Find the values of k for which [2x^2 + kxy + 3y^2 - 5y - 2]factors into two linear factor.

I really need help on this.

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AoPS.Morrisville Oct 18, 2019

Oct 17, 2019

869

+153

Help

deleted

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SoulSlayer615 Oct 17, 2019

781

Solve for x:

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Guest Oct 17, 2019

492

Need help quick!

Rationalize the denominator for

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Guest Oct 17, 2019

645

Help ASAP!!!!!

Simplify

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Guest Oct 17, 2019

All Questions ⁺⁰238470 Questions

Multiplying Matrices

If Your New Here Come See What You Can Do!!!

Determine the perimeter of the shape if 1 unit = 1 foot.

Determine the length of side CB.

Use the diagram to determine which statement is true.

Given that ∠ABD = 76, which equation could be used to solve problems involving the relationships between ∠DBC and ∠ABC?

Really Need Some Help

Sum of odd digits

Help please!

???

Sequence

Price from just the VAT (20%)

Multiply the Matrices

Help pls

Help?

how do i reflect a point across a specific line...

why aren't all lines of symmetry also diagonals?

My seventh grade stupidity

Quad Prac.

Help pls

Find the values of k for which [2x^2 + kxy + 3y^2 - 5y - 2]factors into two linear factors.

Help

Solve for x:

Need help quick!

Help ASAP!!!!!

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