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3 years ago

When factored completely the expression p^4-81 is equivalent to

1 answer:

7 0

$\displaystyle\\
p^4 - 81 =\\\\
 =p^4-3^4 =\\\\
= \Big(p^2\Big)^2 - \Big(3^2\Big)^2 =\\\\
=\Big(p^2+3^2\Big)\Big(p^2-3^2\Big)=\\\\
=\boxed{\bf \Big(p^2+3^2\Big)\Big(p+3\Big)\Big(p-3\Big)}$

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He would of ate 1/3 of the tuna sandwich!

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3 years ago

Read 2 more answers

Whoever gets all three questions correct I will mark them brainlist

Mrac [35]

Answer:

#1- z = 75

#2- t = 1.33

Step-by-step explanation:

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3 years ago

Hiro and his co-workers had lunch at a restaurant near their work. An 18% tip on their bill was $10.08. How much was the bill, n

Ghella [55]

Answer:

$8.27

Step-by-step explanation:

First we need to find the tip. We know it was 18% of the total. So...

x (the variable we need to find) 18%

__ = ___

10.08 (the total bill including tip) 100%

cross multiply

100x = 181.44

-------------------- (divide by 100 to get x by itself)

100

x = 1.81 (The 18% tip that was given)

So now we know how much the tip was, we subtract it from the bill

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3 years ago

A company has determined that the number of items it sells varies inversely as the price of the item. If 20,000 items can be sol

mestny [16]

Let N be the number of items sold and p the price.
Since the variation is inverse, then the relation between N and p is:
$N=k\dfrac{1}{p}$
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$20000=k\dfrac{1}{9.5}\\p=20000\times9.5=190000$
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3 years ago

Which pairs of angles in the figure below are vertical angles??

Wewaii [24]

Answer:

Option A and D

Step-by-step explanation:

straight lines AI, PR, CT intersect each other at a point k.

Opposite or vertical angles are,

1. ∠ AKC and ∠ TKI

2. ∠ IKR and ∠ AKP

Therefore, options (A) and (D) are the correct options.

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3 years ago