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Mumz [18]
3 years ago
7

Find the center and the radius of the circle with the equation: x^2 - 2x + y^2 + 4y + 1 = 0

Mathematics
2 answers:
Stells [14]3 years ago
7 0
What are the ^ supposed to mean multiplecation?
anygoal [31]3 years ago
7 0

Answer:

center:  (1, -2)

radius:  2

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How to find first Derivative of -2(e^2x+1)^3?
Dima020 [189]

Use the chain rule. Let

y=-2(e^{2x}+1)^3

and take u=e^{2x}+1. The chain rule says

\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\mathrm dy}{\mathrm du}\cdot\dfrac{\mathrm du}{\mathrm dx}

The relevant derivatives are then

\dfrac{\mathrm dy}{\mathrm du}=\dfrac{\mathrm d(-2u^3)}{\mathrm du}=-6u^2

(power rule)

\dfrac{\mathrm du}{\mathrm dx}=\dfrac{\mathrm d(e^{2x}+1)}{\mathrm dx}=2e^{2x}

(chain rule applied to e^{2x}; the constant vanishes)

So,

\dfrac{\mathrm dy}{\mathrm dx}=-6u^2\cdot2e^{2x}=-12e^{2x}(e^{2x}+1)^2

5 0
2 years ago
Answer and explain. 30 points given out
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This is what I get

(120-60%)-50%=24
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$61.60 for parts and labor rate is $30.00 per hour total cost 136.60 how many hours will.the job take
seropon [69]

Answer: 5

Step-by-step explanation:

6 0
2 years ago
wo 6-sided number cubes are rolled for a board game. The 2 numbers are then added together to determine how many spaces the play
Nana76 [90]

Answer:

The odds of rolling a 3 on a 6-sided number cube is 1 out of 6. The odds of rolling a 3 on either of two 6-sided cubes are 1/3. This is because 1/6 * 2 = 1/3. Therefore, an average of one-third of rolls will have a 3 in them. 1/3 expressed as a decimal is .3 repeating (.3333333 etc) and that rounds to 33 which is less than 34.

Step-by-step explanation:

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What does 6 pounds plus 6 ounces equals to
EleoNora [17]
That is equal to 6.375
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