For items 6 to 10, determine between what two integers the square root of a number is
6 √2
a) 3 and 4 b) 2 and 3 c) 1 and 2 d) 0 and 1
7 √28
a) 7 and 8 b) 6 and 7 c) 5 and 6 d) 4 and 5
8 √31
a) 2 and 3 b) 3 and 4 c) 4 and 5 d) 5 and 6
9 √3
a) 1 and 2 b) 2 and 3 c) 3 and 4 d) 4 and 5
10 √87
a) 6 and 7 b) 7 and 8 c) 8 and 9 d) 9 and 10
6 √2
a) 3 and 4 b) 2 and 3 c) 1 and 2 d) 0 and 1
7 √28
a) 7 and 8 b) 6 and 7 c) 5 and 6 d) 4 and 5
8 √31
a) 2 and 3 b) 3 and 4 c) 4 and 5 d) 5 and 6
9 √3
a) 1 and 2 b) 2 and 3 c) 3 and 4 d) 4 and 5
10 √87
a) 6 and 7 b) 7 and 8 c) 8 and 9 d) 9 and 10
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Answer:
6.) C
7.) C
8.) D
9.) A
10.) D
solution with explanation:
6.) √1 = 1, √4 = 2
√1 < √2 < √4
1 < √2 < 2
so √2 lies between 1 and 2
7.) √25 = 5, √36 = 6
√25 < √28 < √36
5 < √28 < 6
so √28 lies between 5 and 6
8.) √25 = 5, √36 = 6
√25 < √31 < √36
5 < √31 < 6
so √31 lies between 5 and 6
9.) √1 = 1, √4 = 2
√1 < √3 < √4
1 < √3 < 2
So √3 lies between 1 and 2
10.) √81 = 9, √100 = 10
√81 < √87 < √100
9 < √87 < 10
So √87 lies between 9 and 10
explanation:
so I give you an example at Pic no. 2
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