Mathn 9g

W D.𝑝2 E.1

1. The value of 2−1−1−1is
   A.2 B.-2 C.−12 D.14 E.12
   7.532532 =…….
   A.1 B.0 C.25 D.125 E.625
   8.−1−1 +−10 =……….
   A. 2 B.1 C.0 D. -1 E.-2
2. Which of the following is (are) false?
   1.𝑎+𝑏2 =𝑎2 +𝑏2 2.𝑎+𝑏 =𝑎 +𝑏 3.(ab)2 =a2b2
   A.1 only B. 2only C. 3 only D. 1 and 2 only E. None of these
   10.𝑎2+𝑏22𝑎+𝑏𝑎−𝑏2 =………….
   A.(a+b)3 B.(a-b)3 C.(a-b)(a+b) D.(a-b)2 (a+b) E.(a-b)(a+b)3
   11.If 152x+1=1 ,then x=……….
   A. -1 B. 0 C. 12 D. −12 E.-2
3. If (0.2)x=125 , then x=………
   A. -3 B.0 C.3 D.4 E.5
4. If 4x+1=8x, then x=……..
   A. -3 B.-2 C.-1 D.1 E.2
   14.If 3x+1=8x+1, then x=……….
   A.0 B. -1 C.1 D.12 E. None of above
   15.(-4)-1+(-1)-4=……….
   A. -2 B.-4 C.34 D.−34 E.−114
5. 0.2−2 =……..
   A. 0.4 B.0.004 C.4 D.5 E.125
6. Which of the following is (are) true?
   1. 2100<1525 2.6100-1 is divisible by 5 3. 312<513
      A.1 only B. 2only C. 3 only D. 1 and 2 only E.1 and 3 only
7. 𝑦𝑦𝑦 =…….
   A. 𝑦12 B. 𝑦32 C.𝑦54 D.𝑦58 E.𝑦78