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yarga [219]
3 years ago
15

Which of the following is a complex number?

Mathematics
1 answer:
Elena L [17]3 years ago
8 0

Answer:

4+9i

Step-by-step explanation:

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10 POINTS!!! FULL ANSWER WITH FULL STEP BY STEP SOLUTION PLEASE. DO BOTH PARTS OF 1 AND ALL OF 2.
diamong [38]
One A
y = e^x
dy/dx = e^x The f(x) = the differentiated function. Any value that e^x can have, the derivative has the same value. x is contained in all the reals.
One B
y = x*e^x
y' = e^x + xe^x Using the multiplication rule.
You want the slope and the value of the of y to be the same. The slope is y' of the tangent line
xe^x = e^x + xe^x
e^x = 0
This happens only when x is very "small" like x = - 4444444

y = e^x * ln(x) Using the multiplication rule again, we need the slope of the line with is y'
y1 = e^x
y1' = e^x
y2 = ln(x)
y2' = 1/x
y' = e^x*ln(x) + e^x/x So at x = 1 the slope of the line = 
y' = e^1*ln(1) + e^1/1
y' = e*0+e  = e
y = mx + b
y = ex + b
to find b we use y= e^x ln(x)

e^x ln(x) = e*x + b
e^1 ln(1) = e*1 + b
ln(1) = 0
0 = e + b
b = - e

line equation and answer.
y = e*x - e
8 0
3 years ago
Square root of 90 minus r equals r
dsp73

Answer:

r=sqrt45

Step-by-step explanation:

8 0
4 years ago
PLEASE SOMEONE HELP ME 50 POINTS AND I WILL MARK A BRAINLIEST
Veronika [31]

Answer:

First one is a, second one is d, and the third one is b

Step-by-step explanation:

hope this helps friend

3 0
2 years ago
Sorry u can’t rlly see it but it’s rlly late and it’s due in an hour
Mrac [35]

Answer:

If you subtract $44, 090 from $68, 450 you'll get $24, 360, so thats how much more she'll earn with a bachelor's degree.

Step-by-step explanation:

4 0
3 years ago
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ivanzaharov [21]
15.4m Square because That is what I got when I times those two together 


6 0
3 years ago
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