Answer:
3x2−7x−6=0
x=−7±(−7)2−4(3)(−6)√2(3) =−7±121√6 x=23 and x=−3 x = − 7 ± ( − 7 ) 2 − 4 ( 3 ) ( − 6 ) 2 ( 3 ) = − 7 ± 121 6 x = 2 3 and x = − 3
Step-by-step explanation:
Answer: 1 is not, 2 is, 3 is, 4 is, 5 is, 6 is not
Step-by-step explanation:
1 is not because 2 has two arrows coming off of it and each input can only have one output. 6 is not because if you draw a line down the graph it will hit the figure more than once( this is called the pencil drop test)
Answer:
85 is the answer because it goes down by 3.5.
Step-by-step explanation:
100-.5=99.5, 99.5-1=98.5, 98.5-1.5=97, 97-2=95, 95-2.5=92.5, 92.5- 3= 89.5, 89.5-3.5=85, then 85-4=81, then so on.
I only know 9) and 10) sorry but here they are:
9) x=16 because ...
3x+20=5x-12
(-3x) (-3x)
20=2x-12
(+12) (+12)
32 = 2x
(32/2) (2x/2)
16=x
10) x=46
angles in quadrilaterals add to 360’
So you do ...
360-134-134-46= 46
This is all I know sorry. Hope you find some more help :)