7√7
using the ' rule of radicals '
• √a × √b ⇔ √ab
simplifying the radicals
√28 = √(4 × 7 ) = √4 × √7 = 2√7
√63 = √(9 × 7) =√9 × √7 = 3√7
√112 = √(16 × 7 ) = √16 × √7 = 4√7
substituting into the expression
3(2√7) - 5(3√7) + 4(4√7) = 6√7 - 15√7 + 16√7 = 7√7
Answer:
2.807
Step-by-step explanation:

ANSWER: Exact Form:
2
Decimal Form: 24.08318915
STEP-BY-STEP EXPLANATION:
(-12,1) (12,-1)
Use the distance formula to determine the distance between the two points.
Distance = 
Substitute the actual values of the points into the distance formula.

Multiply -1 BY -12

Add 12 and 12

Raise 24 to the power of 2



Rewrite 580 as
·145
Factor 4 out of 580

Rewrite 4 as 

Pull terms out from under the radical.
2
The result can be shown in multiple forms.
Exact Form:
2
Decimal Form: 24.08318915
Answer:
9/2 -9/2
Step-by-step explanation:
Hope this helps! ;-)
You will need to do the following
You need to get both of the X's on the same side
So you will take the 5x and subtract it to the other side to get
-6=-3x
-3 times 2 = -6 so therefore -6=-6
-6= -3(2)
Answer: X= 2