Can someone answer this i am in forth grade 7/8 x 3 =

Mathematics

1 answer:

Korvikt [17]2 years ago

6 0

The answer is 2/6 :)

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Tv Is 40 inches in length and 24 inches in width how tall is it

Sedaia [141]

Answer

<em>TV screens are measured on the diagonal </em>

<em>. In this specific case the TV is shaped like a rectangle , whose diagonal is 40 i n c h e s and its width is 24 i n c h e s : w = </em>

<em>24 i n d = 40 i n </em>

<em>Then , the sides of the rectangle and its diagonal form a right triangle . </em>

<em>Therefore , we can determine the height ( l ) </em>

<em>if we can apply the Pythagorean theorem: d 2 = l 2 + w 2 </em>

<em>So , solving for l : l = √ d 2 − w 2 </em>

<em>Thus , substituting: l = √ ( 40 ) 2 − ( 24 ) 2 </em>

<em>Simplifying: d = √ 1024 = 32 i n </em>

<em>Therefore </em>

<em>, the height of the TV is: </em>

<em>32 i n </em>

8 0

3 years ago

Which of the following graphs is a polynomial function with x-intercepts of (-3,0)(-1,0), and (2,0)?

Helen [10]

The intercepts of the third degree polynomial corresponds to the zeros of the equation
y = d*(x-a)*(x-b)(x-c)
Where a, b and c are the roots of the polynomial and d an adjustment coefficient.
y = d*(x+2)*(x)*(x-3)
Lets assume d = 1, and we get
y = (x+2)*(x)*(x-3) = x^3 - x^2 - 6x
We graph the equation in the attached file.