3 years ago

Can someone pls solve this question

Mathematics

1 answer:

Verdich [7]3 years ago

5 0

It should be 1/-4

Reason why is because it’s on the 1 line and goes straight down to the -4

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Find the roots of this equation 7xsquare - 5x - 2 = 0

Sophie [7]

Answer:

x = 1, -2/7

Step-by-step explanation:

You could use the quadratic equation but this can be factored into

(7x + 2) (x - 1). You can verify that by multiplying it out.

Since (7x + 2) (x - 1) = 0, if either factor is 0 then the equation would be equal to 0, thus we get x = 1, -2/7

7 0

2 years ago

10 Points!

Gekata [30.6K]

$a_1=6,\ a_n=2\cdot a_{n-1}\\\\a_2=2\cdot a_1\to a_2=2\cdot6=12\\\\a_3=2\cdot a_2\to a_3=2\cdot12=24\\\\a_4=2\cdot a_3\to a_4=2\cdot24=48\\\\a_5=2\cdot a_4\to a_5=2\cdot48=96\\\\a_6=2\cdot a_5\to a_6=2\cdot96=192\\\\\text{Answer:}\\D)\ 6,\ 12,\ 24,\ 48,\ 96,\ 192$