SAT  >  Test: Exponents and Radicals - 1

# Test: Exponents and Radicals - 1

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## 10 Questions MCQ Test Mathematics for SAT | Test: Exponents and Radicals - 1

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Test: Exponents and Radicals - 1 - Question 1

### If 3(x+y) = 81 and 81(x−y) = 3, then the value of x is

Detailed Solution for Test: Exponents and Radicals - 1 - Question 1

3x+y = 81
3x+y = 34
x + 4 = 4....(1)
81x-y = 3
(34)x-y = 3
4(x - y) = 3
34(x-y) = 1
x - y = 1/4....(2)
(1) + (2)
2x = 17/4
x = 17/8

Test: Exponents and Radicals - 1 - Question 2

### Detailed Solution for Test: Exponents and Radicals - 1 - Question 2  4√6

Test: Exponents and Radicals - 1 - Question 3

### If 2x = ∛32, then x=

Detailed Solution for Test: Exponents and Radicals - 1 - Question 3

2x = ∛32
2x = (2)5/3
x = 5/3

Test: Exponents and Radicals - 1 - Question 4

Given that √5 = 2.236 and √3 = 1.732, then the value of is

Detailed Solution for Test: Exponents and Radicals - 1 - Question 4

√5 = 2.236
√3 = 1.732   0.252

Test: Exponents and Radicals - 1 - Question 5

If 10= 1/2 then 10−8x =

Detailed Solution for Test: Exponents and Radicals - 1 - Question 5

10x = 1/2
10-8x = (10x)−8
= (1/2)−8
= 28
= 256

Test: Exponents and Radicals - 1 - Question 6

The value of 51/4 × (125)0.25 is

Detailed Solution for Test: Exponents and Radicals - 1 - Question 6

51/4 × (125)0.25   = 5

Test: Exponents and Radicals - 1 - Question 7 Detailed Solution for Test: Exponents and Radicals - 1 - Question 7   = 2

Test: Exponents and Radicals - 1 - Question 8 Detailed Solution for Test: Exponents and Radicals - 1 - Question 8    Test: Exponents and Radicals - 1 - Question 9 Detailed Solution for Test: Exponents and Radicals - 1 - Question 9  = -2

Test: Exponents and Radicals - 1 - Question 10 lies between

Detailed Solution for Test: Exponents and Radicals - 1 - Question 10  ## Mathematics for SAT

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