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3 years ago

Question 9p=3p + 18

Mathematics

2 answers:

Minchanka [31]3 years ago

7 0

$9p = 3p + 18 \\ \\ 9p - 3p = 18 \\ \\ 6p = 18 \\ \\ p = \frac{18}{6} \\ \\ p = \cancel\frac{18}{6} \\ \\ p = 3$

Hope it helps!! ♥️

Ostrovityanka [42]3 years ago

5 0

Answer:

p=-3

Step-by-step explanation:

9p=3p-18

Subtract from both sides:

9p-3p=3~p-18-3p

Simplify the arithmetic:

6p=3p-18-3p

Group like terms:

6p=3p-3p-18

Simplify the arithmetic:

6p=-18

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mr Goodwill [35]

6 sec can take penny to strike the ground.

Solution:

Given data:

$H_0=288$ feet

$V_0=48$ feet

$h(t)=288+48t-16t^2$

Re-arrange the terms from greatest degree to smallest degree.

$h(t)=-16t^2+48t+288$

We can solve it by applying quadratic formula,

$$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

Here a = –16, b = 48, c = 288

$$t=\frac{-48\pm \sqrt{48^2-4(-16)(288)}}{2(-16)}$

$$t=\frac{-48\pm \sqrt{2304+18432}}{-32}$

$$t=\frac{-48\pm \sqrt{20736}}{-32}$

$$t=\frac{-48\pm144}{-32}$

Now, write find two t's using plus and minus operation.

$$t=\frac{-48+144}{-32},\ \ t=\frac{-48-144}{-32}$

$$t=\frac{96}{-32},\ \ t=\frac{-192}{-32}$

t = –3 (or) t = 6

We cannot write time is negative. so neglect t = –3.

Therefore t = 6.

Hence 6 sec can take penny to strike the ground.

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3 years ago

Please I need help !!!!!

Mama L [17]

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3 years ago

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7.
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3 years ago

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Romashka-Z-Leto [24]

Y - 5 = -2x - 4

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4 years ago

Question 9p=3p + 18 ​

Question 9p=3p + 18