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Kruka [31]
3 years ago
12

F(-3)=2xsquard root of 2 +9

Mathematics
2 answers:
kipiarov [429]3 years ago
8 0
Solution = 2(-3)^2 + 9
= 18 + 9
= 27

i am a mathematics teacher. if anything to ask please pm me
Reptile [31]3 years ago
7 0
<span><span>​<span>√<span><span>​<span>2x−5=7
</span></span>​<span>​​</span></span></span></span>​<span>​<span><span>(<span>√<span><span>​<span>2x−5</span></span>​<span>​​</span></span></span>)</span><span><span>​^2=7^2 
</span><span>​​</span></span></span></span>​<span>​<span>2x−5</span></span>​<span>​=49
<span>2x</span></span>​<span>​=54
</span></span>x=27
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<h3>The total number of beads used in making 37 necklaces is between 2,664 beads and 2,849 beads.</h3>

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Here, as given: The number of necklace made by Opal  = 37

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So, the least number of total beads used in 37 necklaces  = 2,664 beads

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