Question

Only Q.5 answer.
please answer it correctly and fast​

Answer 1

Answer:

(4)the given numbers are 2/7 and 6/7

we know that,

2 < 3 < 4 < 5 < 6

∴ 2/7 < 3/7 < 4/7 < 5/7 < 6/7

hence, three rational numbers lie between 2/6 and 6/7 are

3/7 = 0.428571429 , 4/7 = 0.571428571 , 5/7 = 0.714285714

(5) A complementary angle are two angles whose sum is 90°.

If one angle is 63,then take the other angle 'x'..

63+x = 90

x=90-63

x= 27°

(6) (9p + 16q) + (13p + 2q)

⇒    9p + 16q + 13p + 2q

⇒    9p + 13p + 16q + 2q

⇒   22p + 18q

(7) We need to find square root of 625 by repeated subtraction method.

625−1=624

624−3=621

621−5=616

616−7=609

609−9=600

600−11=589

589−13=576

576−15=561

561−17=544

544−19=525

525−21=504

504−23=481

481−25=456

456−27=429

429−29=400

400−31=369

369−33=336

336−35=301

301−37=264

264−39=225

225−41=184

184−43=141

141−45=96

96−47=49

49−49=0

At last the answer comes out to be 0.

Here number of steps to find this is 25.

Thus square root of 635 is 25.