题库网 (tiku.one)

 找回密码
 立即注册

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp,上传完成后会在上方生成预览,用鼠标连续双击缩略图,或拖动缩略图,该图片就被绑定至本题,显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片,绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


习题练习:IB MAI HL Number and Algebra Topic 1.1 Number Skills



 作者: admin   总分: 11分  得分: _____________

答题人: 匿名未登录  开始时间: 24年01月17日 03:48  切换到: 整卷模式

标记此题
1#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Let Q=$\frac{(sin2x+b)(2sinx-1)}{a^2-4tanx}$,where x =45$^{\circ}$. a=18 and b =$\sqrt{2}$.
1.Find the exact value of Q.
Q=  .
2.Give your answer to part (a) correct to

2.1.three decimal places;
The number is   .
2.2.three significant figures.
The number is   .
3.Calculate the percentage error if Q is given to three decimal places.
Using the percentage error formula ϵ=  %

参考答案:     查看本题详细解析

标记此题
2#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The distance between two ponwgjf6 jz*1 9xints with coordinates (x$_1$,y$_1$) and (x$_2$,y$_2$) is equal to
$\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$.
1.Calculate the distance between points A(40,−100) and B(1,−2). Give your answer correct to three significant figures.
The distance between points A(40,−100) and B(1,−2) is AB≈  .
2.Give your answer from part (a) correct to one decimal place.The number=  .

3.Write the answer to part (b) in the form a×10$^k$, where 1≤a<10, k∈Z.The number=  ×104$^2$

参考答案:     查看本题详细解析

标记此题
3#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Let F=$\frac{(4sin2z-1)(2tan3z+1)}{x^2-y^2}$,where x=12, y=8 and z=15°.

1.Calculate the exact value of F.
F=  .
2.Give your answer to F correct to

2.1.two significant figures;The number=  .

2.2.two decimal places.The number=  .

Sasha estimates the value of F to be 0.03.

3.Calculate the percentage error in Sasha's estimate.the percentage=  %.

参考答案:     查看本题详细解析

标记此题
4#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  
1.Find the value of A. Write down your full calculator display.
A=  .
2.Give your answer to part (a) correct to

2.1.three significant figures;
The number=  .
2.2.three decimal places.
The number=  .
3.Give the answer to part (b) (i) in the form a×10$^k$, where 1≤a<10, k∈Z.
The number=  ×10$^{-2}$.

参考答案:     查看本题详细解析

标记此题
5#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A cuboid has the folluuypb .q0, s7sowing dimensions: length=9.6 cm, width=7.4 cm, and height=5.2 cm. ypbq70susu .,

1.Calculate the exact value of the volume of the cuboid, in cm$^3$
V=  cm$^3$.
2.Write your answer to part (a) correct to

2.1.two decimal places;
The number=  .
2.2.three significant figures.
The number=  .
3.Write your answer to part (b) (ii) in the form a×10$^k$ , where 1≤a<10 and k∈Z.The number=  ×10$^2$.

参考答案:     查看本题详细解析

标记此题
6#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four cement bags labelled, "5 kg", d f:-mbt tt7g+rfj9w*k.a; h dwere delivered to a customer. The customer measured each bag to check their weights and recorded the following: ;h*dw.kfjrd9m: -+ afttb t7 g

4.92,4.95,5.02,4.95

1.1.Find the mean of the customer's measurements.
If we calculate the mean of the measurements, we get μ=  .
1.2.Calculate the percentage error between the mean and the stated,
approximate weight of 5 kg.
Using the percentage error formula ϵ=  %.

2.1.correct to the nearest integer;
The number=  .
2.2.in the form a×10$^k$, where 1≤a<10 and k∈Z.
The number=  ×10$^1$.

参考答案:     查看本题详细解析

标记此题
7#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  After solving a problem, John has an exact answer of z=0.1475.5i2a; +cn vvds

1.Write down the exact value of z in the form a×10$^k$ , where 1≤a<10,k∈Z.
The number=  ×10$^{-1}$.
2.State the value of z given correct to 2 significant figures.
The number=  .
3.Calculate the percentage error if z is given correct to 2 significant figures.
Using the percentage error formula ϵ=  %.

参考答案:    

标记此题
8#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Given that z=$\frac{10sina}{3x+y}$,where α=30°, x=6 and y=46.
1.Find the exact value of z. z=  .

2.Write your answer to part (a)

2.1.correct to 2 decimal places;
The number=  .
2.2.correct to 3 significant figures;
The number=  .
2.3.in the form a×10$^k$ , where 1≤a<10 and k∈Z.
The number=  ×10$^{-2}$.

参考答案:    

标记此题
9#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The following diagram iit9)+ign 0me/ t -cthshows a rectangle with sides of length 7.6×10$^2$cm and 1.5×10$^3$cm.

1.Write down the area of the rectangle in the form a×10$^k$ , where1≤a<10 and k∈Z.

Natalie estimates the area of the rectangle to be 1200000 cm.
A=  ×10$^6$

2.Find the percentage error in Natalie's estimate.
Using the percentage error formula ϵ=  %

参考答案:    

标记此题
10#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The volume of a hemisphere, V, ;mu7.ftfc8q85qxz1d -wz hgzqu ) hx*is given by the formula

where S is the total surface area.

The total surface area of a given hemisphere is 529 cm$^2$.

1.Calculate the volume of this hemisphere in cm$^3$ . Give your answer correct to one decimal place.
V=  cm$^3$
2.Write down your answer to part (a) correct to the nearest integer.
The number=  cm$^3$.
3.Write down your answer to part (b) in the form a×10$^k$ , where 1≤a<10 and k∈Z.
The number=  ×10$^2$ cm$^3$.

参考答案:     查看本题详细解析

标记此题
11#
 
填空题 ( 1.0 分) 切至整卷模式 搜藏此题  
  
1.calculate the value of r.
r=  .
Albert first writes a, b and c correct to one significant figure and then uses these values to estimate the value of r.

2.1.Write down a, b and c each correct to one significant figure.
a=  ,b=  ,c=  .
2.2.Find Albert's estimate of the value of r.
r=  .
3.Calculate the percentage error in Albert's estimate of the value of r.
Using the percentage error formula ϵ=  %.

参考答案:     查看本题详细解析

  • :
  • 总分:11分 及格:6.6分 时间:不限时
    未答题: 已答题:0 答错题:
    当前第 题,此次习题练习共有 11 道题
    本系统支持习题练习,作业与考试三大模式,作业考试自动评分,成绩排序一键导出,可设定动态变量同一试卷千人千题
    如果您对本系统感兴趣,想加入我们或者想进行任何形式的合作,请加微信 skysky1258

    浏览记录|使用帮助|手机版|切到手机版|题库网 (https://tiku.one)

    GMT+8, 2024-12-26 03:16 , Processed in 0.080736 second(s), 43 queries , Redis On.