Question

123456si 7 plssss
Dau coroana

Answer 1

(25+90):5-4x5+3
= 115:5-20+3
= 23-20+3
= 6 (B) corect
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2)
A cu D
B cu B
C cu A
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3)A)
10+ 4x3^2 -7x5 -(3+2^3)
= 10+4x9 - 7x5-(3+ 8)
= 10+36- 35-11
= 46-46= 0 #

3)B)
2017-{[42-(5^2x14-85x4)x2]x3+2^6}
= 2017 -{[42-(25x14-85x4)x2]x3+ 64}
= 2017 -{[42-(350-340)x2]x3+ 64}
= 2017- [(42-10x2)x3+64]
= 2017- (22x3+64)
= 2017- (66+64)
= 2017-130
= 1887 #
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3)C)
(10^2 -7^2+5^4)x(223^0+1^1^500)
= (100 -49+625)x( 1+ 1)
= (51+625)x2
= 676x2
= 1352. #
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4 )
2^10 + 2^11 : 2=
= 4^5 + 2x 4^5 :2
= 4^5+ 4^5
= 8^5 #
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5)
(9^25)^2 :(27^16 : 3)

= 9^50 : 9^16
= 9^(50-16)
= 9^34 #
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