+ + + + + +
4 is positive or + and so is 2
hope it helps
(4+5i)(4-5i)=(4)²-(5i)²=16-25(i)²=16-25(-1)=16+25=41
Answer:
The answer is B. 581/90
Step-by-step explanation:
just divide 581 by 90 and you'll find that it is equivelent to 6.4<u>5</u>
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Hope that helps!
Answer:
12
Step-by-step explanation:
t x 5 = 60
60/5 = 12
Answer:
(-2, -1)
Step-by-step explanation:
This is a quadratic equation in standard form, and a = 1, b = 4 and c = 3.
The x-coordinate of the vertex is given by the formula
-b -4
x = --------- which here has the numerical value x = -------- = -2
2a 2
Finally, we evaluate y=x^2+4x+3 at x = -2 to find the y-coordinate of the vertex:
y = (-2)^2 + 4(-2) + 3 = -1
The vertex is at (-2, -1).
