Answer:
C. $17.00
Step-by-step explanation:
7 times 7 = 49. Perfect square.
3 times 3 = 9. Perfect square.
15 times 15 = 225. Again, a perfect square.
The other two, 17 and 143, come out as decimals. So, your final answer would be 49, 7 and 225. Hope it helps! If you could vote my answer as the brainiest, that would be awesome! :)
Answer:
90
Step-by-step explanation:
ßimple answer no needs to panic
Answer:
Step-by-step explanation:
a - 3b = 4 ---------------(eq1)
2a = 6b -9
or, 2a - 6b = -9 ------------(eq2)
2a - 6b = 8 --------(eq1) X 2
2a - 6b = -9 --------(eq2)
(-) (+) (+)
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the variable part of both the equations are same. so the equation has more than one solution.
Answer:
Solution set= {(3,-9)}
Step-by-step explanation:
x² +6x-27=0
x² +9x-3x-27=0
x(x+9) -3(x+9)=0
(x-3)(x+9)=0
x-3=0; x+9=0
x=3; x=-9