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3 years ago

Part A

Mathematics

1 answer:

Alekssandra [29.7K]3 years ago

6 0

Answer:

Step-by-step explanation:

There are several possible outcomes. If your cross section is created by intersecting the cone with a plane parallel to the base of the cone, the cross section is a circle. If the plane is held vertical, the cross section could be a hyperbola. If the intersecting plane is neither vertical nor horizontal, the cross section could be an ellipse.

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What are the potential solutions to the equation 2ln(x+3)=0

skad [1K]

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Expanding the left side gives

$x^2+6x+9=1\implies x^2+6x+8=0\implies (x+4)(x+2)=0$

which gives two solutions, $x=-4$ and $x=-2$ . But if $x=-4$ , then $\ln(x+3)=\ln(-1)$ , but this number isn't real, so $x=-4$ is an extraneous solution. Meanwhile if $x=-2$ , you get $\ln(-2+3)=\ln1=0$ , so this solution is correct.

"Potential solutions" might refer to both possibilities, but there is only one actual (real) solution.

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4 years ago

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Yanka [14]

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4 years ago

When people say 8:15 times 195 equals 15x, what does 15x mean or stand for

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4 years ago

If someone around 831,982 to 830,000 and then someone else rounds 831,982 for 800,000 who would be correct

devlian [24]

Question

If someone around 831,982 to 830,000 and then someone else rounds 831,982 for 800,000 who would be correct?

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Hi, There! Mika-Chan I'm here to help! :)

First We Need to know If we're rounding to the Nearest Hundred thousand or Not.

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:D hope this Helps you!

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3 years ago

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Multiply both sides by $\frac34$ :

$\dfrac34S_n=\dfrac1{16}\left(\dfrac34\right)^2+\dfrac1{16}\left(\dfrac34\right)^3+\dfrac1{16}\left(\dfrac34\right)^4+\cdots+\dfrac1{16}\left(\dfrac34\right)^{n+1}$