Adding 'like' square root terms is like stacking boxes of the same size. For example, 2√2 + 4√2 + 7√2 = . 1 . 13
2.13√2
3. 26
4. 26√2

9514 1404 393

  2.  13√2

Step-by-step explanation:

You can consider the radical as though it were some (non-numeric) symbol.

Using Ф for √2, this becomes ...

  2Ф +4Ф +7Ф = (2+4+7)Ф = 13Ф

Using √2 for Ф, this becomes ...

  = 13√2

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In short, do not be intimidated by the radical expression. Treat it as you would any other symbol for purposes of collecting terms. (Of course, you can only combine "like" radicals.)

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold

unless if u could do my questions, if not i wouldn't want to