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3 years ago

What was the most common rating in the 26-35 age group?

Mathematics

1 answer:

lana [24]3 years ago

3 0

Answer:

I think its average

Step-by-step explanation:

not sure:)

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Y=3x + 1 for x = 1 2 3 4 5

Olegator [25]

1: 1/3

2. 1/6

3. 1/9

4. 1/12

5. 1/15

6 0

3 years ago

Use a surface integral to ﬁnd the surface area of the portion of the sphere xUse a surface integral to ﬁnd the surface area of t

brilliants [131]

Parameterize this surface (call it $S$ ) by

$\vec r(u,v)=\cos u\sin v\,\vec\imath+\sin u\sin v\,\vec\jmath+\cos v\,\vec k$

with $0\le u\le2\pi$ and $0\le v\le\dfrac\pi4$ . The limits on $u$ should be obvious. We find the upper limit for $v$ by solving for $v$ where the sphere and cone intersect:

$\begin{cases}x^2+y^2+z^2=1\\z=\sqrt{x^2+y^2}\end{cases}\implies x^2+y^2=\dfrac12$

$\implies(\cos u\sin v)^2+(\sin u\sin v)^2=\dfrac12$

$\implies\sin^2v=\dfrac12$

$\implies\sin v=\dfrac1{\sqrt2}\implies v=\dfrac\pi4$

Take the normal vector to $S$ to be

$\vec r_u\times\vec r_v=-\cos u\sin^2v\,\vec\imath-\sin u\sin^2v\,\vec\jmath-\cos v\sin v\,\vec k$

(orientation does not matter here)

Then the area of $S$ is

$\displaystyle\iint_S\mathrm dA=\iint_S\|\vec r_u\times\vec r_v\|\,\mathrm du\,\mathrm dv$

$=\displaystyle\int_0^{\pi/4}\int_0^{2\pi}\sin v\,\mathrm du\,\mathrm dv$

$=\displaystyle2\pi\int_0^{\pi/4}\sin v\,\mathrm dv=\boxed{(2-\sqrt2)\pi}$

4 0

3 years ago

A shirt that cost 60 dollars is now on sale for 30% off what is the value of the discount

Kruka [31]

Answer:

So the value is 18 dollars off which is $42

Step-by-step explanation:

Well we know 50% of 60 is 30 so we want to multiply 60 x 30 = 180 and the denominator would be 100 so 180/100 now we make 180, 18! which makes 18 dollars off so 60 - 18 = 42

6 0

3 years ago

Solve for b and c. Select BOTH correct answers.

boyakko [2]

Answer:

Step-by-step explanation:

3 0

2 years ago

The decimal .033 can be written as which fraction?

Alja [10]

Answer:

Step-by-step explanation:

hope this helps with the work

4 0

3 years ago

Read 2 more answers