几个英语计算试题1.On a road map with a scale of 1/4 inchper 10 miles,the highway from Waukee to Winterset is 1又3/8 inches long.How many miles long is this highway?A.44B.55C.65D.702.The price of gasoline has increased by 5% during the past m

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几个英语计算试题1.On a road map with a scale of 1/4 inchper 10 miles,the highway from Waukee to Winterset is 1又3/8 inches long.How many miles long is this highway?A.44B.55C.65D.702.The price of gasoline has increased by 5% during the past m

几个英语计算试题1.On a road map with a scale of 1/4 inchper 10 miles,the highway from Waukee to Winterset is 1又3/8 inches long.How many miles long is this highway?A.44B.55C.65D.702.The price of gasoline has increased by 5% during the past m
几个英语计算试题
1.On a road map with a scale of 1/4 inchper 10 miles,the highway from Waukee to Winterset is 1又3/8 inches long.How many miles long is this highway?
A.44
B.55
C.65
D.70
2.The price of gasoline has increased by 5% during the past month.If the price per gallon a month ago was $1.20,what is the current price per gallon?
A.$1.24
B.$1.25
C.$1.26
D.$1.70
E.$1.
3.Which of the following fractions is equivalent to 0.05?
A.1/5
B.1/20
C.1/25
D.1/50
E.1/200要过程
4.What is the distance between the points with (x,y) coordinates(3,-2)and(-3,-1)?
5.If f(x)=x的平方-2,then f(a+2)=?
6.For 0度

几个英语计算试题1.On a road map with a scale of 1/4 inchper 10 miles,the highway from Waukee to Winterset is 1又3/8 inches long.How many miles long is this highway?A.44B.55C.65D.702.The price of gasoline has increased by 5% during the past m
1.B1又3/8 inches=11/8inches=11/8除以1/4*10=55miles
2.C1.2*5%=0.06 0.06+1.2=1.26per gallon
3.C0.05=5/100=1/25
4.根号下(3--3)平方+(1--2)平方=3*根号下5
5.x=1,y=-1
x=0 y=-2 x=0 y=0
x=-1 y=-1
f(x)=x的平方
6.C sinX=(1-cosX的平方)
2-2cosX的平方=cosX
-2cosX的平方-cosX+2=0
2cosX的平方+cosX-2=0
b的平方-4ac=9cosX的平方大于0
所以有两个根

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