I need help please !!!!!

Mathematics

2 answers:

levacccp [35]3 years ago

4 0

The answer is A. $14.50.

krek1111 [17]3 years ago

4 0

You just add 12.75 + 15% and you'll get 14.66 since its over the A) 14.50 you'll have to add an extra dollar so your answer would be C) 15.00

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I need help solving please

Harlamova29_29 [7]

Answer:

1/2

Step-by-step explanation:

Probability = Favorable outcomes / Total number of outcomes

=> Purple + Blue / Total

=> 6 + 4 / 20 (Because there are 6 purple and 4 blue and 10 green)

=> 10 / 20

=> 1/2

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Thank you!

5 0

3 years ago

Read 2 more answers

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]

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