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trasher [3.6K]
3 years ago
9

What are the types of roots of the equation below? x^4 - 81 = 0

Mathematics
1 answer:
solmaris [256]3 years ago
4 0
X^4-81=0
(x^2+9)(x^2-9)=0
(not real)=0 (x^2-9)=0
(x^2-9)=(x+3)(x-3)
Real roots=-3,3, also irrational -(-9)^(1/2), (-9)^(1/2)
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Can someone please help me solve 1-|1/3q-5|=-6
FrozenT [24]
Hello,

2 cases:

if 1/3*q-5>0 then

 |1/3*q-5|=1/3*q-5
1-|1/3*q-5|=-6
1-(1/3*q-5)=-6
1-1/3*q+5=-6
6-1/3*q=-6
-1/3*q=-12
q=36

else

 |1/3*q-5|=-(1/3*q-5)
1-|1/3*q-5|=-6
1+(1/3*q-5)=-6
1+1/3*q-5=-6
-4+1/3*q=-6
1/3*q=-2
q=-6





4 0
3 years ago
A cylinder has a height of 4 meters and a diameter that is 3 times the measure of the
Andrei [34K]

Answer:

452.16 m³

Step-by-step explanation:

d = 3h = 3×4m = 12 m

r = d/2 = 12m/2 = 6 m

V = Ab×h = π·r²·h

= 3.14×36m²×4m

= 452.16 m³

3 0
3 years ago
A piece of steel pipe 12.5 feet long weighs 158 pounds. How much does a piece of the same steel pipe 18.75 feet long weigh?
jonny [76]

Answer:

18.75 feet of steel pipe weighs 237 pounds  

explanation:

find out how much 1 feet weighs than u can find out how much 18.75 feet.

by doing it like this  

158÷ 12.5

=12.64

1 feet equals 12.64 pounds

12.64× 18.75

=237 pounds this is the answer

i do apologize if it wrong

8 0
4 years ago
Read 2 more answers
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPP Which statement would be LEAST LIKELY to occur based on the probability?
N76 [4]

Answer:

i believe the answer is 1/9, sry if im wrong

Step-by-step explanation:

 

4 0
3 years ago
Deshi has 427 marbles and Elaheh has 394 marbles Deshi wants to give 125 marbles to his little brother how many total marbles wi
hjlf

Answer: Deshi will have 302 marbles  and Elaheh will have 519.

Step-by-step explanation:

Deshi's Marbles will subtract 125.

427 - 125 = 302.

Elaheh's Marbles will add 125.

394 + 125= 519.

3 0
3 years ago
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