3 years ago

What is that answer to that math problem ?

Mathematics

1 answer:

vazorg [7]3 years ago

6 0

Answer:

1. x = 20

2. x = 5.25

3. x = 35

Step-by-step explanation:

Hope this helps!

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6. 5x = -25<br> a. X= 5<br> b. X=-5<br> c. x=2

iris [78.8K]

Answer:

x = -5

Step-by-step explanation:

5x = -25

Divide each side by 5

5x/5 = -25/5

x = -5

3 0

3 years ago

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PLEASE HELP ME WILL MARK YOU JF YOU HELP ME PLEASE!!!

ollegr [7]

Answer:

2, 3, 4, 7, 8, 10 I hope

5 0

3 years ago

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The height h (in feet) of an object t seconds after it is dropped can be modeled by the quadratic equation h = -16t2 + h0, where

lawyer [7]

$\bf h=-16t^2+255\implies h=-16t^2+0t+255
\\\\\\
~~~~~~~~~~~~\textit{quadratic formula}\\\\
\begin{array}{lcccl}
h=& -16 t^2& +0 t& +255\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array} 
\qquad \qquad 
h= \cfrac{ - b \pm \sqrt { b^2 -4 a c}}{2 a}
\\\\\\
h=\cfrac{-0\pm\sqrt{0^2-4(-16)(255)}}{2(-16)}\implies h=\cfrac{\pm\sqrt{16320}}{-32}
\\\\\\
h=\cfrac{\pm\sqrt{8^2\cdot 255}}{-32}\implies h=\cfrac{\pm 8\sqrt{255}}{-32}\implies h=\cfrac{\mp \sqrt{255}}{4}
\\\\\\
h\approx \mp 3.992179856$