Given that 22 is not a measured number and 1.4 is a measured number, for which of the following problems does the answer contain 3 significant figures?A.22 multiply by 1.4B.22 divided by 1.4C.22 added to 1.3D. More than one responseE. None of the above

Explanation: We need to find all 3 significant figure answers.

As we have seen that three significant answers is in two of the given option, therefore, the answer is:

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

50.6

step-by-step explanation: