Answer:
x= 2
or it's 0
Step-by-step explanation:
2.8 x
----- = ---- = (2.8)(17.4)=27.52(x)
27.52 17.4
49=27.52(x)
--------------
(27.52) (27.52)
2=x
or:
2.8/27.52= x/1.74
2.8(1.74)=27.52(x)
5=27.52(x)
0=x
Answer:
How long will it take a plane to fly 310 miles at 124 miles per hour?
A.) 1.5h
B.) 2h
<u>C.) 2.5h
</u>
D.) 3h
Step-by-step explanation:
Given:
Q = 0.0764 kJ = 764 J, heat input
W = -830 J, useful work done
From the 1st Law of Thermodynamics, the change in internal energy is
δE = Q - W
= 764 - (-830)
= 1594 J = 1.594 kJ
Answer: 1.59 kJ (two sig. fig.)
89 Step-by-step explanation: 12+-3 = 6
The only set of elements that satisfied the equation 2x-1= -13 is {-6}.
<h3>What is a set?</h3>
A set is a combination of specific quantities in which the meaning of each variable must be the same.
For example {1,2,3,4,5,6...} is a set of natural numbers in which each variable is representing a natural number so the overall meaning is the same among all.
Another example could be a set of whole numbers like that.
Given the equation,
2x-1= -13
By taking -1 right-hand side
2x = -13 + 1 = -12
By dividing 2
x = -6
Hence "The only set of elements that satisfied the equation 2x-1= -13 is {-6}".
To learn more about the sets,
brainly.com/question/8053622
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