Answer:
the second one
Step-by-step explanation:
Answer:
∠ABC = 84°
∠BEF = 64°
Step-by-step explanation:
∠ABC is supplementary to the 96° angle shown, so is 180° -96° = 84°.
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∠ABD, marked as (x+y)°, is a vertical angle with ∠EBC, so has the same measure, 96°. ∠BEF, marked as y°, is a vertical angle with the one marked 2x°.
These relationships can be expressed as two equations:
Using the second of these equations to substitute for y in the first equation, we have ...
x + 2x = 96
x = 96/3 = 32
y = 2x = 2·32 = 64 . . . . . . substitute the value of x into the second equation
Then ∠BEF = 64°.
Answer:
15°C
Step-by-step explanation:
The wheel rotation is decreasing each time by 3 rotations. The temperature is decreasing each time by 2.4°C. In order to get to zero you need to continue the table.
15 27
12 24.6
9 22.2
6 19.8
3 17.4
0 15