Answer:
5
Step-by-step explanation:
Answer:
C.
(0.525, 0.635)
Step-by-step explanation:
0.58 +/- 0.994sqrt(0.58×0.42/80)
0.58 +/- 0.05485042953
[0.5251495705 , 0.6348504295]
Make use of the fact that side lengths in similar triangles are proportional.
.. 30/18 = (20 +x)/20
.. 20*(30/18) -20 = x . . . . multiply by 20, subtract 20
.. 33 1/3 -20 = x . . . . . . . . evaluate the product
.. 13 1/3 = x
2. 14
3. 110
4. 63
5. 590
6. 11
7. 1,387
8. 27
9. 56
10. 48
11. 12
12. 302.14
13. 16