Please help me I don’t understand and can you tell me how you got the answer

Mathematics

1 answer:

vovangra [49]3 years ago

4 0

Answer:

Step-by-step explanation:

to find the whole number of this fraction all you have to do is do the top number divided by the bottom so... 36 ÷ 4 = 9 and we get 9 Hopefully that helps!

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If we apply a scale factor of 3 to a cube where each side is 2 inches long, what will the volume of the new cube be?

Nataly [62]

Answer:

216

Step-by-step explanation:

3*2= 6

6*6=36

6*36=216

8 0

3 years ago

Please answer correctly !!!!!!!! Will mark brianliest !!!!!!!!!!!!!

garri49 [273]

Answer:

So since the ball is at x=0 at the end.

We plug in it.

h(x) = 16 if you simplify it

6 0

3 years ago

A rocket is fired upward from some initial distance above the ground. Its height in feet, h,above the ground, t seconds after

kirill115 [55]

Check the picture below.

$\bf \textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{lccclll}
h(t) = &{{ -16}}t^2&{{ +96}}t&{{ +2560}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)$

so.. the maximum point is at $\bf {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}~~~ft$

and it happened after $\bf -\cfrac{{{ b}}}{2{{ a}}}~~~seconds$

--------------------------------------------------------------------------

now, when the rocket reaches the ground, as you saw on the picture, y = 0, thus

$\bf h(t)=-16t^2+96t+2560\implies 0=-16t^2+96t+2560
\\\\\\
0=-16(t^2-6t-160)\implies 0=t^2-6t-160
\\\\\\
0=(t-16)(t+10)\implies t=
\begin{cases}
\boxed{16}\\
-10
\end{cases}$

"t" is an amount in seconds, for this specific phenomena, it cannot be negative, so -10 is not a feasible value.