Pythagoras; a^2 + b^2 = c^2 So, (6.7)^2 + (5.5)^2 = 75.14 then square root to get, 8.668 (to 3 d.p) hope this helps!!
20x+3
This shouldddd be the answer sorry if I’m wrong, but if you group all the x variables together they add up to twenty, then you just add “+3” being that it has no x and therefore must be put in some form of separate group!
the blue dot on the number of line is -11.3
Answer: 2y124√y12
How to: <u>Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.</u>
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The answer is 17
1.mutiply 1 and 4 in the brackets
2.subtract 8 and 4=4
3.multiply 2 and 4=8
4.8+9=17
To help use the Rule GEMDAS
G=Grouping
E=Exponents
M=Multiply
D=Divide
A=Addition
S=Subtract