Solve the equation x2+11x-15=0, give ans to two dp.
1 answer:
Im going to assume you know the formula.
sooo.
x= -11 +- √ (11)² -4 (1) (-15)
---------------------------------
2(1)
= -11 +- √121- (-60)
-------------------------
2
= -11 +- √181
-----------------
2
= -11 +- 13.45
-----------------
2
Either: Or:
X = -11 - 13.45
x = -11 + 13.45 ---------------
2
----- ----------
2
x = 1.23 x= -12.23
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perimeter should be 43 and the area should be 72m^2
this is squared btw
Answer:
D
Step-by-step explanation:
Which is about .57
You are suppose to subtract making it
X+7=13
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X=6
55 is the estimated answer
