3 years ago

What I’d the equation of a line that is perpendicular to -x+3y=9

Mathematics

1 answer:

m_a_m_a [10]3 years ago

7 0

Answer:

Y=3x+3

Step-by-step explanation:

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How do I solve this??

WITCHER [35]

v + 9 / 3 = 8

v + 9 = 24

v = 24 - 9

v = 15

If you have any questions on how I got to this solution, please ask. :)

6 0

3 years ago

Read 2 more answers

a student has a savings account with $475 in it. she deposits $125 of her paycheck into the account every week.

soldier1979 [14.2K]

Answer:

350

Step-by-step explanation:

you just have to subtract ibthink

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3 years ago

The number of pieces of popcorn in a large movie theatre popcorn bucket is normally distributed, with a mean of 1515 and a stand

Murrr4er [49]

Answer: 99.7%, Im pretty confident about that. Im taking the test right now.

Step-by-step explanation:

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3 years ago

I dont really know how to do soh cah toah. please help me find x.

Ipatiy [6.2K]

First notice that the triangle with sides $x,y,a$ and the triangle with sides $z,a+b,x$ are similar. This is true because the angle between sides $x,y$ in the smaller triangle is clearly $30^\circ$ , while the angle between sides $y,z$ in the larger triangle is clearly $60^\circ$ . So the triangles are similar with sides $x,y,a$ corresponding to $a+b,z,x$ , respectively.

Now both triangles are $30^\circ-60^\circ-90^\circ$ , which means there's a convenient ratio between its sides. If the length of the shortest leg is $\ell_1$ , then the length of the longer leg is $\ell_2=\sqrt3\ell_1$ and the hypotenuse has length $\ell_3=\sqrt{{\ell_1}^2+{\ell_2}^2}=2\ell_1$ .

Since $x$ is the shortest leg in the larger triangle, it follows that $a+b=2x$ , so $a+b=15=2x\implies x=\dfrac{15}2$

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3 years ago

What's the perimeter of the wall hanging to the nearest tenth of a centimeter

Temka [501]

You just add the LxW and for area you multiply LxWxLxW

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3 years ago