Math night contest

[bsharpe]

Okay you big brains, hear is something for fun. First one to answer these math questions, yes, you do need to show your work ,wins a zoa frag. Your choice I have a bunch. This is a mom's lazy way of checking child's homework. LOL

Question 1

Simplify.
Find square root of 5 and 15 (Hint: if you get a large decimal number- not right)

Question 2

Solve.
1.2 - 3.4x= -5.6

Question 3

Find the sum of the polynomials 3x - 2y - 4 and x + 2y - 7.


I will also bake the winner brownies, regular brownies.

 

[Heffe01]

What do you mean the square root of 5 and 15? They both can't have the same number...so do you mean SR of 5 + SR of 15?

 

[Heffe01]

Nevermind...screw this...I hate math. And I am getting to fat for brownies.

 

[Kalani Corals]

I've got question 2 and 3. Still working one 1

 

[fiji4118]

gotta be a trick question. 5 is a prime number and the square is over a million digits long and counting

 

[bsharpe]

What do you mean the square root of 5 and 15? They both can't have the same number...so do you mean SR of 5 + SR of 15?

Please simplify the numbers, whatever that means.
And no you are not fat!

 

[Kalani Corals]

Do you mean the sqrt(5+15) ? If so I have the answer

 

[chrislorentz]

the square of 5 = 5x5=5^2=25

The square root of five is

2.23606 79774 99789 69640 91736 68731 27623 54406 18359 61152 57242 7089...

2.236 is 99.9% accurate

 

[chrislorentz]

1.2 - 3.4x= -5.6

2

 

[Kalani Corals]

sqrt(5+15)
Sqrt(20)
Sqrt(4*5)
2*sqrt5

1.2-3.4x=-5.6
1.2=-5.6+3.4x
1.2+5.6=3.4x
6.8=3.4x
6.8/3.4=x
2=x

3x-2y-4 and x+2y-7
(3x+x)(-2y+2y)(-4-7)
4x-11

 

[Kalani Corals]

Not really sure what ur lookin for with the sqrt, but usually simplify means to put it in a reduced form. 5 and 15 are reduced form, so I figure it was the sqrt5+15

 

[jahmic]

Okay you big brains, hear is something for fun. First one to answer these math questions, yes, you do need to show your work ,wins a zoa frag. Your choice I have a bunch. This is a mom's lazy way of checking child's homework. LOL

Question 1

Simplify.
Find square root of 5 and 15 (Hint: if you get a large decimal number- not right)

Question 2

Solve.
1.2 - 3.4x= -5.6

Question 3

Find the sum of the polynomials 3x - 2y - 4 and x + 2y - 7.


I will also bake the winner brownies, regular brownies.

The only way question 1 makes sense is if they are asking for this:

sqrt(5+15)
to solve..
sqrt(20)=sqrt(5x4)=2sqrt(5)

2.

1.2 - 3.4x= -5.6

1.2 - 3.4(2) = 1.2 - 6.8 = -5.6
So x=2

3.

No work really...answer should be 4x-11

 

[jahmic]

Dang...sniped. lol

 

[Kalani Corals]

^^^^ Glad I wasn't the only one thinkin it

 

[Kalani Corals]

Dang...sniped. lol

We must've been typing at the same time!

 

[Kalani Corals]

Dang...sniped. lol

If we are both right you can have the prize. Don't know when I'll be getting up to denver anytime soon. Fun tho.

 

[bsharpe]

Notxes11 and Jahmic have #2 and #3 right, try number 1 again, you can do it!

 

[jahmic]

Lol yep...and I was struggling on the phone with tapatalk down!

 

[Kalani Corals]

I'm droppin out of school! It's been too long for me to remember how to solve that one!

 

[bsharpe]

Can you believe this is 8th grade math? I feel a bit dumb