Acarpenter took the following measurements: 3.4 m, 10.25 m, 20.2 m, and 19 m.
determine if each statement is true or false.
a. the most precise measurement has 4 significant digits.
b. the least precise measurement has 2 significant digits.
c. written using the correct number of significant digits, the sum of the
measurements should be rounded to the tenths place.

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.