The answer of the question is D
Bar GraphA graph that uses bars to show dataHorizontal Bar Grapha bar graph in which the bars are read from left to rightKeyThe part of a map or graph that explains the symbols.Line PlotA graph that uses marks to record each piece of data above a number line.Vertical Bar GraphA bar graph in which the bars are read from the bottom to the top.DataInformation gathered and used to make sense.Line Graphused to show how two continuous variables are related; may be used to show how one variable changes over time.circle graphused to display data showing the relationship of parts to a whole<span>Mean</span>
To factor a polynomial we need to find 2 numbers that add up to -15 and multiply into -54.
(-x -18)(x +3) Will be your answer.
C and D bc +-0.7 is the answer
but because there no answer which contains both i think u should mark E
Answer:
x³ - (√2)x² + 49x - 49√2
Step-by-step explanation:
If one root is -7i, another root must be 7i. You can't just have one root with i. The other roos is √2, so there are 3 roots.
x = -7i is one root,
(x + 7i) = 0 is the factor
x = 7i is one root
(x - 7i) = 0 is the factor
x = √2 is one root
(x - √2) = 0 is the factor
So the factors are...
(x + 7i)(x - 7i)(x - √2) = 0
Multiply these out to find the polynomial...
(x + 7i)(x - 7i) = x² + 7i - 7i - 49i²
Which simplifies to
x² - 49i² since i² = -1 , we have
x² - 49(-1)
x² + 49
Now we have...
(x² + 49)(x - √2) = 0
Now foil this out...
x²(x) - x²(-√2) + 49(x) + 49(-√2) = 0
x³ + (√2)x² + 49x - 49√2
