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Mathematics 12 Online
OpenStudy (johnnewman):

A. 13 and 14 B. 14 and 15 C. 11 and 12 D. 12 and 13 https://static.k12.com/bank_packages/files/media/mathml_081779b9b4841d32ff658d79fdca76f671499242_1.gif

Mehek (mehek14):

any idea?

Mehek (mehek14):

which number has a square close to 155?

OpenStudy (johnnewman):

154 qnd 156

Mehek (mehek14):

154 and 156 are not perfect squares

OpenStudy (johnnewman):

oh ok

Mehek (mehek14):

try option A \(13*13=\\14*14=\)

OpenStudy (johnnewman):

13x13= 169 14x14=196

Mehek (mehek14):

is 155 between 169 and 196?

OpenStudy (johnnewman):

no

Mehek (mehek14):

so not A

OpenStudy (johnnewman):

14 x 14 = 169 15x15=225

Mehek (mehek14):

not B either

OpenStudy (johnnewman):

not b or a

Mehek (mehek14):

so now you have C and D

OpenStudy (johnnewman):

11x11=121 12x12=144

OpenStudy (johnnewman):

not c

OpenStudy (johnnewman):

12x12=144 13 x13=169 so it d between 12 and 13

Mehek (mehek14):

yup

OpenStudy (johnnewman):

thanks mehek

Mehek (mehek14):

yw :)

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