-5(r-1)
Do you need step by step
The second one because it has a square root symbol and the other ones are all numbers whole numbers
Plug -7 for x
10*-7 = -70 - 19 = -89
<span>k(-7) = -89</span>
9514 1404 393
Answer:
yes, no, no
Step-by-step explanation:
The triangle will be a right triangle if the sum of the squares of the two short sides, less the square of the long side, is zero. (This is what the Pythagorean theorem tells you.) The angle where the radius meets the circle must be a right angle if the line is to be a tangent.
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a) 3^2 +4^2 -5^2 = 9 + 16 -25 = 0 . . . . AB is a tangent
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b) 9^2 +15^2 -18^2 = 81 +225 -324 = -18 . . . . AB is not a tangent
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c) 10^2 +48^2 -52^2 = 100 +2304 -2704 = -300 . . . . AB is not a tangent
6
Step-by-step explanation:
-2^3=-8
-10+(-8)=-10-8=-18
-18÷-3=6
