5x=38-3
5x=35
x=7 good luck
Answer:
2.9 units
Step-by-step explanation:
Here the leg lengths are x and 7.7 and the one given angle is 21 degrees.
Think: which trig function incorporates both the length of the side opposite the 21 degree angle (x) and the vertical side (7.7)? It's the tangent function:
tan Ф = opp / adj
To be clear: the side adjacent (next to) the 21 degree angle is 7.7 units in length and the side opposite this angle is x.
Then we have tan 21 degrees = opp / adj = x / 7.7
and so 7.7(tan 21 degrees) = 7.7(03839) = 2.96 or (to one decimal place) 2.9
Answer:
9 Slices
Step-by-step explanation:
multiply each side of the equation by 12x to eliminate the fractions while keeping the equation balanced
12x3/4= 9
Given: ∠AEB = 11x - 12, ∠CED = 4x + 1, Line EC bisects ∠BED
To find: ∠AEC
Since Line EC bisects ∠BED, ∠BEC = ∠CED
That is: ∠BEC = 4x + 1
Therefore ∠BEC + ∠CED = 4x + 1 + 4x + 1 = 8x + 2
Now, ∠AEB = 11x - 12
Therefore: ∠AEB + ∠BEC = ∠AEC
That is, 11x - 12 + 4x + 1 = ∠AEC
∠AEC = 15x - 11
Therefore ∠AEC = 15x - 11
Hopeit helps :)
