以下是我在做OG时遇见的问题,望各位大侠帮忙解答困惑~小弟跪谢了 6 j4 v1 a0 q4 a2 r. _9 _9 e. ?. eP462 第13题4 c, r/ a r9 _& p5 b1 X7 s) e- K
. k4 \/ ^) k& g+ O! VP 535 第15题# P' _3 @) K+ a5 l) b5 l, g! W
A measuring cup contains 1/5 of a cup of orange juice.it is then filled to the 1 cup mark with mixture that contains equal amounts of orange ,grapefruit, and pineapple juices. What fration of the final mixture is orange juice? ' ]6 w/ D/ o6 |0 s3 f( cMy answer is (1/5+1/3)/(1+1/5)( ~. a/ e% C0 C
' k* w# |4 l& a7 u5 [P613 第9题 " |( p/ O( h* Y" V3 AThe number that results when an integer is multiplied by itself CANNOT end in which of the following. ^- b6 F2 {9 v3 _' }
a) 1( y9 I9 C8 g% B2 D2 D
b) 4$ b' b5 V1 f+ p* Q' |
c) 5 ; Y, q/ J- x/ `' fd) 6 " N' m+ a' Q l7 z( k2 h, }; ^e) 8 . q2 n/ t& R' ^& b" y1 f 1 \7 q' m- H( t: n% E) U/ DP 721 第17题 K5 K& y* \$ z
What is “the whole number remainder” 7 u+ z) l2 @3 K/ V& t. B! g6 L ) U1 Z1 q" g6 ^% X" yP 793 第9题% I5 A5 h6 [5 P. X6 t' U
If k (2x+3) (x-1) = 0 and x>1 ,what is the value of k? - ^% P! T3 f: L1 y* K/ qa) -3/22 U+ [) ?7 p2 ?- F+ V! ^& o
b) 0 $ [! W: J' s- D( c+ bc) 2/3 , `) [# @4 P1 m7 ?# S4 o( P; @d) 13 O h* V, M% p$ }+ S/ E8 v
e) 2/ L* @ a6 ?8 \: [7 X V" f
4 \1 b, q' H% F& V
P 795 第18 题' B8 }: b, |( A( l. @8 B! P4 @, j
The figure above shows part of a circle whose circumference is 45. if arcsof length 2 and length b continue to alternate around the entire circle so that there are 18 arecs of each length , what is the DEGREE measure of each of the arcs of length b?(图我就不贴了)5 q0 z, ?/ s6 u/ @5 u7 r
a) 4°& H! W) u; a; r3 T+ Z
b) 6° : d4 r+ b* _0 X9 h: X! w% @c) 10° 8 n- w( i8 e" e6 t. v& `3 {d) 16°3 @* j$ t* h4 e" ^0 ]7 \* \
e) 20° ( }4 B8 L( {5 D8 r0 y 6 U( x+ S# ]+ I @3 B/ @6 T |
P 807 第14题8 x# c& f O, v8 |* z" U
If n and p are integers greater than 1 and if p is a factor of both n+3 and n+1 , what is the value of p? - u1 x. Y1 }2 q3 va) 34 L5 e; S2 f6 S$ V/ [
b) 7 c- D2 _6 D6 p7 u& P5 F0 E Jc) 10/ X ]) A+ L- J: \, o* A8 A
d) 139 u8 E5 c. ` B+ e' F2 V* X- b, i
e) 30& [) P! v7 J, \9 s9 w3 }
My question is what is “factor”