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Helga [31]
4 years ago
8

Solve the equation: X to the 4th power - 81=0

Mathematics
1 answer:
Musya8 [376]4 years ago
5 0
x^4-81=0\\
x^4=81\\
x^4=3^4 \vee x^4=(-3)^4\\x=3 \vee x=-3
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| -11|>2 true or false
Lisa [10]

Answer:

Step-by-step explanation:

niet waar -11 is negatief

6 0
3 years ago
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They sold 64 adult tickets (x) and 132 kid tickets (y) and made $1040. An adult ticket is double the cost of a kid's ticket. How
Andrej [43]

Answer: the cost of one adult ticket is $8

the cost of one kid ticket is $4

Step-by-step explanation:

Let x represent the cost of one adult ticket.

Let y represent the cost of one kid ticket.

They sold 64 adult tickets (x) and 132 kid tickets (y) and made $1040. This means that

64x + 132y = 1040 - - - - - - - - - - -1

An adult ticket is double the cost of a kid's ticket. This means that

x = 2y

Substituting x = 2y into equation 1, it becomes

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x = 8

4 0
3 years ago
4x + y = 24 <br> 5x - y = 12<br> Applying systems of linear equations substitution, elimination.
Neko [114]
Using elimination you can eliminate 'y' to find x first.
4x=24
+ 5x=12
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9x=36
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Next use substitution to plug 4 back in to 'x'

4(4)+y=24
16+y=24
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6 0
4 years ago
Find the value of x in the triangle shown below.<br> 8<br> 2<br> Answer?
Lyrx [107]
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3 0
4 years ago
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