Perform the following calculations and give your answer with the correct number of significant figures of 10.5+11.62

Question

Grade: Education Subject: chemistry

Asked by: USER6443

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Answer (116)

USER2512

Best Answer

(495)

when it comes to addition of numbers the final answer should have the same number of decimal places as the least precise value or in other words the number with least number of decimal places
10.5 - has 1 decimal place
11.62 has 2 decimal places
add 10.5 + 11.62 = 22.12
the number with least number of decimal places is 10.5 with only 1 decimal place
therefore answer too should have 1 decimal place
22.12 rounded off to 1 decimal place is 22.1
answer is 22.1

Answered on 28 Agustus 2025

Perform the following calculations and give your answer with the correct number of significant figures of 10.5+11.62

Question

Answer (116)

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Sa se rezolve in R urmatoarele ecuatii: a) (x-[tex] \sqrt{5} [/tex])²-(x-[tex] \sqrt{10} [/tex])(x+[tex] \sqrt{10}[/tex])=(x-[tex] \sqrt{5}[/tex]+1)²- x². b) x([tex] \sqrt{3}+2[/tex])²-([tex] \sqrt{3}-1[/tex])²= 4(x[tex] \sqrt{3}[/tex]-2) AM MARE NEVOIE DE AJUTOR ! DAU COROANA ! REPEDE !!!

Expresia 3x3−x2+6x−2 se descompune în factori ireductibili în multimea numerelor reale sub forma:

a)(3x+1)(x2−2)
b)(3x−1)(x2+2)
c)(3x2+1)(x−2)
d)(3x2−1)(x+2)
e)3(x2+1)(x−2)

Afisati toate nr. de forma 1x74y sau suma cifrelor 19,diviyibil cu 5

DAU COROANAAA!!!!

Sa se rezolve in R urmatoarele ecuatii:
a) (x-[tex] \sqrt{5} [/tex])²-(x-[tex] \sqrt{10} [/tex])(x+[tex] \sqrt{10}[/tex])=(x-[tex] \sqrt{5}[/tex]+1)²- x².
b) x([tex] \sqrt{3}+2[/tex])²-([tex] \sqrt{3}-1[/tex])²= 4(x[tex] \sqrt{3}[/tex]-2)
AM MARE NEVOIE DE AJUTOR ! DAU COROANA ! REPEDE !!!