I have the answer attached.
Answer:
I think the answer is 5 ( if wrong then do a low rating)
Step-by-step explanation:
The way I found the answer was by using PEDMAS so first I handled [(4 - (-5)) x (-7)] which is the same as 4 + -5 which equals -1 and when multiplied by -7 equals positive 7 because whenever you multiply 2 negatives you get a positive.
Next I solved 6 / (-3) which is -2 since whenever a positive is divided by a negative the quotient is negative. Now the equation is:
-2 + 7 and when solved is -2 + 7 = 5
Step-by-step explanation:
Really really sorry if I'm wrong...
<u>Y2 -Y1</u>
X2 - X1
<u>-20 - - 8</u>
-9 - -5
<u>-12</u>
-4
(simplified): <u>-3</u>
-1
7c² + 8c + 1 = 0
c = <u>-(8) +/- √((8)² - 4(7)(1))</u>
2(7)
c = <u>-8 +/- √(64 - 28)</u>
14
c = <u>-8 +/- √(36)
</u> 14
c = <u>-8 +/- 6</u>
14
c = <u>-8 + 6</u> c = <u>-8 - 6</u>
14 14
c = <u>2</u> c = <u>-14</u>
14 14
c = ¹/₇ c = 1
The solution is equal to { 1, ¹/₇}.
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