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sdas [7]
3 years ago
5

What is the value of the expression? 4 to the second power plus 3 to the 3rd power

Mathematics
2 answers:
raketka [301]3 years ago
7 0
4\ to\ the\ second\ power=4^2=4\cdot4=16\\\\3\ to\ the\ 3rd\ power=3^3=3\cdot3\cdot3=9\cdot3=27\\\\4\ to\ the\ second\ power\ plus\ 3\ to\ the\ 3rd\ power:\\\\4^2+3^3=16+27=\huge\boxed{43}
Romashka-Z-Leto [24]3 years ago
3 0
4 to the second power: 4²
3 to the third power: 3³
4*4=16
3*3*3=27
16+27=43
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Natali [406]
\left\{\begin{array}{ccc}5x-2y=4\\3x+y=9&/\cdot2\end{array}\right\\+\left\{\begin{array}{ccc}5x-2y=4\\6x+2y=18\end{array}\right\\----------\\.\ \ \ \ \ 11x=22\ \ \ \ /:11\\.\ \ \ \ \ \ \ x=2\\\\3\cdot2+y=9\\6+y=9\\y=9-6\\y=3\\\\Answer:x=2;\ y=3


\left\{\begin{array}{ccc}3x-5y=13\\x-2y=5\end{array}\right\\\left\{\begin{array}{ccc}3x-5y=13\\x=2y+5\end{array}\right\\\\substitute:\\\\3(2y+5)-5y=13\\6y+15-5y=13\\y=13-15\\y=-2\\\\x=2\cdot(-2)+5=-4+5=1\\\\Answer:x=1;\ y=-2.
5 0
2 years ago
What percent of 630 is 270
Tatiana [17]
I don't Clearly understand your question but I think it is 0.428571
8 0
3 years ago
For some reason my teacher gave this to us and I kinda forgot how to do this from last year... please helppp w/ work or she’s go
WARRIOR [948]
The greatest common factor is...
5a
I got this by...
10: 1,2,5,10
15: 1,3,5,15
25: 1,5,25
The GCF is 5 for the numbers.
For the a's, it's...
a: a
a^3: a×a×a
a^6: a×a×a×a×a×a
The GFC is a.
Then multiple 5 and a, and you get...
5a
The GFC is...
5a
Hope this helps!
8 0
3 years ago
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schepotkina [342]
Here are the answers: they are in red

5 0
2 years ago
Factor and simplify 8cos^2x+cosx-9
KonstantinChe [14]
HELLO DEAR,




GIVEN:-
8cos²x + cosx - 9

8cos²x + 9cosx - 8cosx - 9

cosx(8cosx + 9) - (8cosx + 9)

(cosx - 1)(8cosx + 9)


I HOPE ITS HELP YOU DEAR,
THANKS
3 0
3 years ago
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