Tổng số đo bốn góc của một tứ giác bằng:

Tứ giác có hai cạnh đối song song và bằng nhau là:

Chọn câu trả lời đúng. Cho tứ giác ABCD. Gọi E, F, G, H lần lượt là trung điểm của AB, BC, CD, DA. Xét các khẳng định sau: (I) Tứ giác EFGH là hình bình hành (II) Chu vi EFGH = AC + BD

Các góc của một tứ giác có thể là:

Cho tứ giác ABCD có $\widehat{A}=60^{0}; \widehat{B}=50^{0}; \widehat{C}=90^{0}; $. Kho đó số đo góc D bằng

Tứ giác ABCD có $\widehat{A}=110^{0}$, $\widehat{B}=70^{0}, \widehat{C}=120^{0}, \widehat{D}=?$

Cho hình bên, điểm đối xứng với A qua đường thẳng m là:

Tổng số đo bốn góc của một tứ giác bằng:

Tìm câu sai:

Hình thoi có độ dài hai đường chéo lần lượt là 8cm và 6cm. Độ dài cạnh hình thoi là?

Cho tứ giác ABCD có 4 góc bằng nhau. Khi đó mỗi góc có số đo bằng:

Một túi có viên bi gồm viên bi màu trắng được đánh số từ đến ; viên bi màu đỏ được đánh số từ đến ; viên bi màu xanh được đánh số từ đến và viên màu vàng được đánh số từ đến . Có bao nhiêu cách chọn viên bi từng đôi khác số?  

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

Studies about how students use their time might shed light on whether they face increased academic and financial pressures compared with earlier eras. Based on data about how students are spending time, academic or financial pressures don’t seem to be greater now than a generation ago. The data show that full-time students in all types of colleges study much less now than they did a generation ago–a full 10 hours a week less. Students are also receiving significantly higher grades. So it appears that academic pressures are, in fact, considerably lower than they used to be. The time–use data don’t suggest that students feel greater financial pressures, either. When the time savings and lower opportunity costs are factored in, college appears less expensive for most students than it was in the 1960s. and though there are now full-time students working to pay while in college, they study less even when paid work choices are held constantly. In other words, full-time students do not appear to be studying less in order to work more. They appear to be studying less and spending the extra time on leisure activities or fun. It seems hard to imagine that students feeling increased financial pressures would respond by taking more leisure. Based on how students are spending their time then, it doesn’t look as though academic or financial pressures are greater now than a generation ago. The time-use data don’t speak directly to social pressures, and it may well be that these have become more intense lately. In one recent set of data, students reported spending more than 23 hours per week either socializing with friends or playing on the computer for fun. Social activities, in person or on computer would seem to have become the major focus of campus life. It is hard to tell what kinds of pressures would be associated with this change.  

Question: The author finds it hard to point out__________         

Trong khai triển , hệ số của là:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

Studies about how students use their time might shed light on whether they face increased academic and financial pressures compared with earlier eras. Based on data about how students are spending time, academic or financial pressures don’t seem to be greater now than a generation ago. The data show that full-time students in all types of colleges study much less now than they did a generation ago–a full 10 hours a week less. Students are also receiving significantly higher grades. So it appears that academic pressures are, in fact, considerably lower than they used to be. The time–use data don’t suggest that students feel greater financial pressures, either. When the time savings and lower opportunity costs are factored in, college appears less expensive for most students than it was in the 1960s. and though there are now full-time students working to pay while in college, they study less even when paid work choices are held constantly. In other words, full-time students do not appear to be studying less in order to work more. They appear to be studying less and spending the extra time on leisure activities or fun. It seems hard to imagine that students feeling increased financial pressures would respond by taking more leisure. Based on how students are spending their time then, it doesn’t look as though academic or financial pressures are greater now than a generation ago. The time-use data don’t speak directly to social pressures, and it may well be that these have become more intense lately. In one recent set of data, students reported spending more than 23 hours per week either socializing with friends or playing on the computer for fun. Social activities, in person or on computer would seem to have become the major focus of campus life. It is hard to tell what kinds of pressures would be associated with this change.  

Question: The word “focus” in the last paragraph can be replaced with_______         

Biết hệ số của trong khai triển biểu thức là . Số nguyên bằng bao nhiêu?  

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

Studies about how students use their time might shed light on whether they face increased academic and financial pressures compared with earlier eras. Based on data about how students are spending time, academic or financial pressures don’t seem to be greater now than a generation ago. The data show that full-time students in all types of colleges study much less now than they did a generation ago–a full 10 hours a week less. Students are also receiving significantly higher grades. So it appears that academic pressures are, in fact, considerably lower than they used to be. The time–use data don’t suggest that students feel greater financial pressures, either. When the time savings and lower opportunity costs are factored in, college appears less expensive for most students than it was in the 1960s. and though there are now full-time students working to pay while in college, they study less even when paid work choices are held constantly. In other words, full-time students do not appear to be studying less in order to work more. They appear to be studying less and spending the extra time on leisure activities or fun. It seems hard to imagine that students feeling increased financial pressures would respond by taking more leisure. Based on how students are spending their time then, it doesn’t look as though academic or financial pressures are greater now than a generation ago. The time-use data don’t speak directly to social pressures, and it may well be that these have become more intense lately. In one recent set of data, students reported spending more than 23 hours per week either socializing with friends or playing on the computer for fun. Social activities, in person or on computer would seem to have become the major focus of campus life. It is hard to tell what kinds of pressures would be associated with this change.  

Question: All factors considered, college now seems__________         

Khai triển đa thức ta được   Mệnh đề nào sau đây là đúng?          

 Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

Studies about how students use their time might shed light on whether they face increased academic and financial pressures compared with earlier eras. Based on data about how students are spending time, academic or financial pressures don’t seem to be greater now than a generation ago. The data show that full-time students in all types of colleges study much less now than they did a generation ago–a full 10 hours a week less. Students are also receiving significantly higher grades. So it appears that academic pressures are, in fact, considerably lower than they used to be. The time–use data don’t suggest that students feel greater financial pressures, either. When the time savings and lower opportunity costs are factored in, college appears less expensive for most students than it was in the 1960s. and though there are now full-time students working to pay while in college, they study less even when paid work choices are held constantly. In other words, full-time students do not appear to be studying less in order to work more. They appear to be studying less and spending the extra time on leisure activities or fun. It seems hard to imagine that students feeling increased financial pressures would respond by taking more leisure. Based on how students are spending their time then, it doesn’t look as though academic or financial pressures are greater now than a generation ago. The time-use data don’t speak directly to social pressures, and it may well be that these have become more intense lately. In one recent set of data, students reported spending more than 23 hours per week either socializing with friends or playing on the computer for fun. Social activities, in person or on computer would seem to have become the major focus of campus life. It is hard to tell what kinds of pressures would be associated with this change.  

Question: The word “Academics” in the title mostly means_________         

Tìm hệ số của trong khai triển                                 

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

Studies about how students use their time might shed light on whether they face increased academic and financial pressures compared with earlier eras. Based on data about how students are spending time, academic or financial pressures don’t seem to be greater now than a generation ago. The data show that full-time students in all types of colleges study much less now than they did a generation ago–a full 10 hours a week less. Students are also receiving significantly higher grades. So it appears that academic pressures are, in fact, considerably lower than they used to be. The time–use data don’t suggest that students feel greater financial pressures, either. When the time savings and lower opportunity costs are factored in, college appears less expensive for most students than it was in the 1960s. and though there are now full-time students working to pay while in college, they study less even when paid work choices are held constantly. In other words, full-time students do not appear to be studying less in order to work more. They appear to be studying less and spending the extra time on leisure activities or fun. It seems hard to imagine that students feeling increased financial pressures would respond by taking more leisure. Based on how students are spending their time then, it doesn’t look as though academic or financial pressures are greater now than a generation ago. The time-use data don’t speak directly to social pressures, and it may well be that these have become more intense lately. In one recent set of data, students reported spending more than 23 hours per week either socializing with friends or playing on the computer for fun. Social activities, in person or on computer would seem to have become the major focus of campus life. It is hard to tell what kinds of pressures would be associated with this change.  

Question: Students nowadays seem to be studying less and ________.