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You need to square root both sides.

x = sqrt(484)

x = 22.

Use the calculator on the home page. 

7h + 50 > 99

2a + 3 ≤35

Note that Kayla's maximun possible age is 16

Just use % --> Shift + "5" on the top row of the keyboard labeled 1- 0.

Yeah it would be better to help on the forum...but kinda need the answer today, Melody, help me please!

It is sometimes called 2nd  that is what it is on the site calc.  Sometimes it is called 'shift'

It is almost always in the top left corner.  

If you can help Haley then help on the forum!

Draw a triangle

sin62=120/w

then solve

with replacement

a)  $$26^3*10^3$$

b)  $$26^4*10^3$$

b = 30 - 5m

4/5

cos and acos cancel each other out.  Draw a triangle and check out what is happening. 

Yes, you would end up with x = -10/18.

i had that so does that mean if i did it right the answer would be -10 = 18x and then i would divide 18 and 10

Thanks

You can just type in abs(x) for example to get |x|.

Distribute the 10 first by multiplying it with the x and 2.

10*x - 10*2 = 10x - 20

10x - 20 + 15 = 8x + 7

Notice, -20 + 15 = -5...

10x - 5 = 8x + 7

Now, all we have to do is add 5 to both sides and subtract 8x from both sides.

This should be easily solvable now.

just subtract 4 from both sides. 

Thank you so much.

This one requires distribution of the 2 and 16 first.

Multiply 2 to 3 and x --> 2*3 - 2*x = 6 - 2x

Multiply 16 to x and 1 --> 16*x + 16*1 = 16x + 16

Now, we have 6 - 2x = 16x + 16.

Add 2x to both sides and subtract 16 from both sides.

Can you take it from there?

But that dosent help. thanks tho.

you mean 

23.78932 degrees?

23 degrees

$${\mathtt{0.789\: \!32}}{\mathtt{\,\times\,}}{\mathtt{60}} = {\mathtt{47.359\: \!2}}$$

47 minutes

$${\mathtt{0.359\: \!2}}{\mathtt{\,\times\,}}{\mathtt{60}} = {\frac{{\mathtt{2\,694}}}{{\mathtt{125}}}} = {\mathtt{21.552}}$$    seconds

so

23.78932 degrees = 23 degrees, 47minutes and 21.552 seconds.  

You can use the math formula tool to write it.

x/2        $${\frac{{\mathtt{x}}}{{\mathtt{2}}}}$$

OR you can use the LaTex tool to write it

\frac{x}{2}            $$\frac{x}{2}$$

this is an irrational number - it can only be estimated.

You can do that with any calculator.

2/3*3/4

Multiply directly or simplify first!

The 3's would cancel out and 4/2 = 2 which means you can cross out the 2 in 2/3 leaving you with:

1/1 * 1/ 2

1/2.

This is because these 2 lines are paralle.

they have the same gradient

I can tell straight off that they are parallel because

-6x-2y=-2(3x+y)

The -2 is not important.  It is important that one is a constant multiple of the other.