3 years ago

I need help please ?!!!

Mathematics

1 answer:

Aleksandr [31]3 years ago

3 0

Answer:

Step-by-step explanation:

I mean im not wrong trust me

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Anyone can help me with math for solving for a side in the right triangles for khan academy

Elden [556K]

Answer:

7.45

Step-by-step explanation:

We are given a right triangle with one side length known and an angle know so we can use some trigonometry.

You need to find the hypotenuse so you are going to use either sine or cosine.

Since the adjacent from the angle is given (SOH-CAH-TOA) we can use cosine so,

cos(20) = 7/h

=>h = 7/cos(20)

=> 7.44924

=> 7.45

6 0

3 years ago

V= <img src="https://tex.z-dn.net/?f=v%3D%20%5Cpi%20r%20%5E%7B2%7D%20h%20%20for%20%20%202%20" id="TexFormula1" title="v= \pi r ^

swat32

$V=\pi r^2h \\\\ r^2=\frac{V}{\pi h} \\\\ \boxed{r=\sqrt\frac{V}{\pi h}}$

3 0

3 years ago

Factor the following polynomial completely. <br><br>0.3x^2-3x+7.2

marin [14]

$0.3x^2-3x+7.2=0.3(x^2-10+24)=0.3(x-4)(x-6)$

6 0

3 years ago

The figure below shows a right rectangular prism whose base is a square.

xxTIMURxx [149]

Answer:

The intersection of the horizontal plane with the prism would have a square shape.

Step-by-step explanation:

A right rectangular prism is one in which each side makes an angle of $90^{0}$ with its base, which is a square. It is a three dimensional figure with six faces.

The point where the horizontal plane and the prism coincides would take the shape of the base of the prism. This is because the prism rests with its base on the horizontal plane. Thus, the shape required is in the form of a square since its base is a square. The length and width of its base are equal.

4 0

3 years ago

Read 2 more answers

Will give 50 points

mafiozo [28]

Answer:

120.96$

Step-by-step explanation:

150$ - 25% = 112$

112$ + 8% = 120.96$

Hope this helps!!

7 0

3 years ago