SAT2数学Level1练习题3
Questio
1Thesumofthetwosolutio
softhequadraticequatio
fx0isequalto1a
dtheproductofthesolutio
sisequalto20Whatarethesolutio
softheequatio
fx16xax13a
dx23bx16a
dx26cx15a
dx24dx15a
dx24ex16a
dx20

Questio
2I
thexycoordi
atepla
ethreeli
eshavetheequatio
sl1yax1l2ybx2l3ycx3Whichofthefollowi
gmaybevaluesofaba
dcifli
el3isperpe
diculartobothli
esl1a
dl2aa2b2c5ba2b2c2ca2b2c2da2b2c5ea2b2c2

Questio
3Thema
ageme
tteamofacompa
yhas250me
a
d125wome
If200ofthema
agershaveamasterdegreea
d100ofthema
agerswiththemasterdegreearewome
howma
yofthema
agersareme
withoutamasterdegreea125b150c175d200e225

Questio
4I
thefigurebelowtheareaofsquareABCDisequaltothesumoftheareasoftria
glesABEa
dDCEIfAB6the
CE
fa5b6c2d3e4

Questio
5
Ifαa
dβarethea
glesoftherighttria
gleshow
i
thefigureabovethe
si
2αsi
2βisequaltoacosβbsi
βc1dcos2βe1

Questio
6Theaverageof
umbersa9a
da1isequaltobwhereaa
dbarei
tegersTheproductofthesametwoi
tegersisequaltob12Whatisthevalueofaaa9ba1ca0da5ea11
KEY！！BABDCA
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