Solve for x:
x^2 + 4 x + 25 = 0 I ssume that's the notation.
Subtract 25 from both sides:
x^2 + 4 x = -25
Add 4 to both sides:
x^2 + 4 x + 4 = -21
Write the left hand side as a square:
(x + 2)^2 = -21
Take the square root of both sides:
x + 2 = i sqrt(21) or x + 2 = -i sqrt(21)
Subtract 2 from both sides:
x = i sqrt(21) - 2 or x + 2 = -i sqrt(21)
Subtract 2 from both sides:
Answer: x = i sqrt(21) - 2 or x = -i sqrt(21) - 2
Answer:
The first graph.
Step-by-step explanation:
The equation is x is greater than 2. Therefore, the graph needs to shade anything greater than 2, but not 2.
<span>43.79 *0.05= </span>2.1895
218.95 *0.05= 10.9475
2.19 *0.05= 0.1095
21.90 *0.05= 1.095
2,189.50 *0.05= <span>109.475
</span>
hope this helps
The answer to your question is 6.
Answer:
False
Step-by-step explanation:
The equation of any circle is 2πr or 2(3.14)1 in this question.
So 2x3.14= 6.28x1=6.28
