In the 3×3 table shown, the numbers 2, 4 and 6 are placed so that each number occurs only once in each row and only once in each column. The value of M + N is ............
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In the 3×3 table shown, the numbers 2, 4 and 6 are placed so that each number occurs only once in each row and only once in each column. The value of M + N is ............
dịch đi, mk giải cho
còn ko dịch thì mk bó tay
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In the 3×3 table shown, the numbers 2, 4 and 6 are placed so that each number occurs only once in each row and only once in each column. The value of M+N is
shown, the numbers 2, 4 and 6 are placed so that each number occurs only once in each row and only once in each column. The value of M + N is ............
In the 3×3 table shown, the numbers 2, 4 and 6 are placed so that each number occurs only once in each row and only once in each column. The value of M+N is
| 4 | ||
| 2 | M | |
| N |
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From 4 letters ab18 one can make all 18 numbers with 4 digits. (In a number, each digit is written only once.) The sum of all 18 possible numbers is 90216. Find a and b.
Pat has a number of counters to place into the cells of a 3 x 3 grid. She may place any number of counters in each cell or leave some of the cells empty. She then finds the number of counters in each row and each column. Pat is trying to place counters in such a way that these six totals are all different.
What is the smallest total number of counters that Pat can use?
How many two-digit numbers N have the property that the sum of N and the number formed by reversing the digits of N is a perfect square ?The square SAMF has an area of 169. It contains two over lapping squares. The smaller of these sqares has an area that is one quarter of the larger of them, and the erea of their overlap is 4. What is the erea of the shaded region ?In the diagram, each of the integers 1 through 9 is to be placed in one circles, both horizontal and diagonal, add to 18. The 6 and...
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How many two-digit numbers N have the property that the sum of N and the number formed by reversing the digits of N is a perfect square ?The square SAMF has an area of 169. It contains two over lapping squares. The smaller of these sqares has an area that is one quarter of the larger of them, and the erea of their overlap is 4. What is the erea of the shaded region ?In the diagram, each of the integers 1 through 9 is to be placed in one circles, both horizontal and diagonal, add to 18. The 6 and 1 have been filled in as shown. Determine the value of the number represented by x in the diagram. Justify your answerHow many digits does the number 2013 have ?
Có bao nhiêu số có hai chữ số N có các tài sản mà tổng của N và số lượng được hình thành bằng cách đảo ngược các chữ số của N là một hình vuông hoàn hảo?
Các SAMF vuông có diện tích 169. Nó chứa hai qua các quảng trường vỗ. Nhỏ hơn của những sqares có một khu vực mà là một phần tư lớn hơn của họ, và các erea của chồng lên nhau của họ là 4. erea của vùng bóng mờ là gì?
Trong sơ đồ, mỗi số nguyên từ 1 đến 9 là phải được đặt trong một vòng tròn, cả chiều ngang và đường chéo, thêm vào 18. 6 và 1 đã được điền vào như hình vẽ. Xác định giá trị của các số đại diện bởi x trong biểu đồ. Biện minh cho câu trả lời của bạn
Bao nhiêu chữ số không số năm 2013 có?
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Question 1:In a magic triangle, each of the six whole numbers 10; 11; 12; 13; 14; 15 is placed in one of the circles so that the sum, S, of the three numbers on each side of the triangle is the same. The largest possible value for S is____
Q2:Find the highest common factor of 147x and 98y if HCF(x;y)=1
Q3: A pattern of triangles is made from matches shown as follows
if there are 207 matches used, how many triangles has been formed
Lecture 3: Kinematics and DynamicsI/ Fill in the blank using words given in the brackets. Each word can be used more than once. Kinematics1/ ..(1).....................are quantities that have magnitude only.2/ Vectors are quantities that have ..(2)......................... as well as ..(3)................................3/ ....(4).......................... vectors are vectors that lie in the same plane.4/ ..(5).............. is the length of the path taken while ..(6).....................is the...
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Lecture 3: Kinematics and Dynamics
I/ Fill in the blank using words given in the brackets. Each word can be used more than once.
Kinematics
1/ ..(1).....................are quantities that have magnitude only.
2/ Vectors are quantities that have ..(2)......................... as well as ..(3)................................
3/ ....(4).......................... vectors are vectors that lie in the same plane.
4/ ..(5).............. is the length of the path taken while ..(6).....................is the straight-line distance and
the direction from a fixed point. ...(5).. ........................is a scalar quantity and ..(6)..............is a vector
quantity.
5/ …(7)……... is the …...(8)............… travelled per unit time. Its SI unit is meter per second (ms-1).
6/ ...(9)..............................… is the rate of change of displacement.
8/ ....(10).........................is the rate of the change of velocity. Its magnitude is given by the ...
(11)...............or ..(12)............................ of a (v-t) graph.
9/ Consider a body moving with uniform or ...(13)................................. acceleration in a straight line.
10/ ...(14).................… refers to motion under the influence of a uniform gravitational field without air
resistance.
11/ ..(15).........................… refers to the resistive force acting on a body moving through air. Its.
(16).................. is always opposite to the direction of motion. Its . (17)... .......depends on the speed and
cross-section area of the body, and the density of the air.
12/ The path or the ...(18)............................ of a body, due to uniform velocity in one direction and a
uniform acceleration in a perpendicular direction, is a curve called ...(19).......................…
13/………(20)……….: A situation in which the forces acting upon an object are in balance.
(scalar, distance, acceleration, gradient, vector, trajectory, co-planar, velocity, constant, slope,
magnitude, parabola, displacement, resistance, speed, direction, free-falling).