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2 years ago

HELP ME PLZ HELP ME PLZ HELP ME PLZ I REALLY NEED YOUR help

Mathematics

2 answers:

arsen [322]2 years ago

8 0

Question 9 answer is 80 and for 10 it is 72 and for 11 it is 112 and for 12 it is 143

USPshnik [31]2 years ago

5 0

Answer:

Question 9= 80

Question 10= 72

Question 11= 112

Question 12= 143

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2 years ago

Ann:my number has two periods.one contains the digits 4,1,and 8 in that order.the other contains the digit 9.

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2 years ago

No Spam. I will mark Brainliest, if you get it right. A tank's length is 4 feet longer than its width. The height is 2 feet more

dmitriy555 [2]

Answer: 3

Step-by-step explanation:

Let say x the width of the tank,

x+4 its length,

x+2 its height

$Volume=105=x(x+4)(x+2)\\\\P(x)=x^3+6x^2+8x-105=0\\\\105=3*5*7\\\\P(1)\neq 0\\P(-1)\neq 0\\P(3)=0\\\\\begin{array}{|c|cccc|}&x^3&x^2&x&1\\&1&6&8&-105\\x=3&&3&27&105\\----&--&--&--&--\\&1&9&35&0\\\end{array}\\\\\\P(x)=x^3+6x^2+8x-105=(x-3)(x^2+9x+35)\\And \ x^2+9x+35\ is\ not \ factorizable\ (\Delat=9^2-4*35 < 0)\\$

<u>width=3</u>

length=3+4=7

height=3+2=5

4 0

2 years ago