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3 years ago

Which situation CANNOT be represented by this equation? - 1x + 15 = 9

Mathematics

1 answer:

ryzh [129]3 years ago

8 0

<h3>Answer: Choice B</h3>

Explanation:

The term "rising" will indicate that we should use positive 1/3 instead of negative 1/3.

Choices A and C use "decreasing" which is why they involve -1/3. This is why we can rule out these two choices.

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LMNP is a rectangle. Find the value of x and the length of each diagonal. LN=2x+25 and MP=6x−7

Nana76 [90]

2x+25=6x-7
4x=32
x = 8
LN = 41
MP = 41

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4 years ago

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Set up a triple integral in spherical coordinates to compute the volume of the region inside the sphere x² + y² + z² = 4 and abo

Mademuasel [1]

The plane meets the sphere in the cylinder

$z=1 \implies x^2+y^2+1^2 = 4 \implies x^2+y^2 = 3 = \left(\sqrt3\right)^2$

In spherical coordinates, the plane has equation

$z = \rho\cos(\phi) = 1 \implies \rho = \sec(\phi)$

and since

$\begin{cases}x = \rho\cos(\theta)\sin(\phi) \\ y=\rho\sin(\theta)\sin(\phi)\end{cases} \implies x^2+y^2 = \rho^2 \sin^2(\phi)$

the cylinder has equation

$\rho^2 \sin^2(\phi) = 3 \implies \rho = \sqrt3 \, \csc(\phi)$

The plane and cylinder thus meet when

$\sec(\phi) = \sqrt3\,\csc(\phi) \implies \tan(\phi) = \sqrt3 \implies \phi = \dfrac\pi3$

So, the volume of the region is given by

$\displaystyle \boxed{\int_0^{2\pi} \int_0^{\pi/3} \int_{\sec(\phi)}^2 \rho^2 \sin(\phi) \, d\rho \, d\phi \, d\theta}$

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2 years ago

Find the missing angle. Find X

olga55 [171]

Answer:

I don’t know 160.

Step-by-step explanation:

20 plus 160 equals 180.

4 0

3 years ago

If a sweatshirt is $20 and the discount is 30% how much is the sweatshirt

Westkost [7]

Answer:

$14.00

Step-by-step explanation:

First take $20 and divide by 100. Then you multiply by 30 to get the reference which was $6. If the sweatshirt was $20 and the reference was $6, you would subtract $20 - $6 and get $14.

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3 years ago

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Last Saturday, the MoviePlex theater sold 1,603 tickets. The theater sold 6 times as many regular-price tickets as it sold disco

Evgen [1.6K]

Answer:

u are stupid man no offence

i don't know ether just woke up sorry man

Step-by-step explanation:

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3 years ago