In the figure below, x = Câu 2 Find the measure of angle J if \widehat{K}=29^o K =29 o and angle J and K are supplementary. Answer: \widehat{J}= J = ^o o . Câu 3 In the figure below, x = Câu 4 In the figure below, x = Câu 5 Solve: |2x-3|-4=3∣2x−3∣−4=3, where xx is a negative number. Answer: x=x= Câu 6 Calculate: 9+|-6|:1^2 =9+∣−6∣:1 2 = Câu 7 Compare: \dfrac{36}{27} 27 36 ​ \dfrac{4}{3} 3 4 ​ Câu 8 Find the negative number yy such that |y+\dfrac{7}{2}|-\dfrac{1}{2}=4∣y+ 2 7 ​ ∣− 2 1 ​ =4. Answer: y=y= Câu 9 Find xx such that \dfrac{32}{2^x}=2 2 x 32 ​ =2. Answer: x=x= Câu 10 Find nn such that \dfrac{(-4)^n}{64}=-16 64 (−4) n ​ =−16. Answer: n=n= Cần gấp nhé

Exam number 2

Fill in the blank with the suitable number

Question 1
Find the value of 
Answer: ........

Question 2
Fill missing number in the blank
54723+........=27849+54723

Question 3:
Fill missing number in the blank
41165+23042=23042+.........

Question 4:
Calculate: 4159+2615+421=.........

Question 5:
Find x such that x+24360=41256
Answer: x=........

Question 6:
If the perimeter of a square is 104m then its one side’s length is : ........ m

Question 7:
If a square has one side’s length is 12cm then its perimeter is : ........ cm

Question 8:
Find y such that y – 12358=18031 
Answer: y=............

Question 9:
The perimeter of a rectangle is 36cm and its length is 6cm more than its width. Its area is : ........

Question 10:
Find the value of b such that b5 x 5 = 75
Answer: b=.........

Exam number 3

Fill in the blank with the suitable number

Question 1:
The sum of two numbers is 98 and their difference is 24. The greater number is 

Question 2:
Fill missing number in the blank
41165+23042=23042+

Question 3:
Fill missing number in the blank 
(32514+16257)+23459=+(16257+23459)

Question 4:
Calculate: 91625 – 27356= 

Question 5:
If a square has one side’s length is 12cm then its perimeter is cm

Question 6:
If the perimeter of a square is 104m then its one side’s length is m

Question 7:
Find x such that x+24360=41256
Answer: x=

Question 8:
Find y such that y – 12358=18031 
Answer: y=

Question 9:
Find the value of n such that 
Answer: n=

Question 10:
Find the value of b such that 
Answer: b=

Câu 1 The function mm is defined on the real numbers by m(k) = \dfrac{k+2}{k+8}m(k)= k+8 k+2 ​ . What is the value of 10\times m(2)10×m(2)? Answer: Câu 2 The function ff is defined on the real numbers by f(x)= ax-3f(x)=ax−3. What is the value of a if f(3)=9f(3)=9? Answer: Câu 3 The function ff is defined on the real numbers by f(x)= 2x+a-3f(x)=2x+a−3. What is the value of a if f(-5)=11f(−5)=11? Answer: Câu 4 The function ff is defined on the real numbers by f(x) = 2 + x-x^2f(x)=2+x−x 2 . What is the value of f(-3)f(−3)? Answer: Câu 5 Given a real number aa and a function ff is defined on the real numbers by f(x)=-6\times|3x|-4f(x)=−6×∣3x∣−4. Compare: f(a)f(a) f(-a)f(−a) Câu 6 There are ordered pairs (x;y)(x;y) where xx and yy are integers such that \dfrac{5}{x}+\dfrac{y}{4}=\dfrac{1}{8} x 5 ​ + 4 y ​ = 8 1 ​ Câu 7 Given a negative number kk and a function ff is defined on the real numbers by f(x)=\dfrac{6}{13}xf(x)= 13 6 ​ x. Compare: f(k)f(k) f(-k)f(−k) Câu 8 Given a positive number kk and a function ff is defined on the real numbers by f(x)=\dfrac{-3}{4}x+4f(x)= 4 −3 ​ x+4. Compare: f(k)f(k) f(-k)f(−k). Câu 9 A=(1+2+3+\ldots+90) \times(12 \times34-6 \times 68):(\dfrac{1}{3}+\dfrac{1}{4}+\dfrac{1}{5}+\dfrac{1}{6})=A=(1+2+3+…+90)×(12×34−6×68):( 3 1 ​ + 4 1 ​ + 5 1 ​ + 6 1 ​ )= Câu 10 Given that \dfrac{2x+y+z+t}{x}=\dfrac{x+2y+z+t}{y}=\dfrac{x+y+2z+t}{z}=\dfrac{x+y+z+2t}{t} x 2x+y+z+t ​ = y x+2y+z+t ​ = z x+y+2z+t ​ = t x+y+z+2t ​ . The negative value of \dfrac{x+y}{z+t}+\dfrac{y+z}{t+x}+\dfrac{z+t}{x+y}+\dfrac{t+x}{y+z} z+t x+y ​ + t+x y+z ​ + x+y z+t ​ + y+z t+x ​ is