Answer:
x = 20
Step-by-step explanation:
given f(x) =
, we have to solve
= 4
Square both sides
(
)² = 4²
x - 4 = 16 ( add 4 to both sides )
x = 20
As a check
=
= 4 ← correct
30 + 11.3 = ?
30 + 11.3 = 41.3
41.3 - 11.3 = 30.
A = 41.3
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B. (x,y) (x+2, y-1) and reflected across y=-1</span>
Answer:
x = 16
y = 116
Step-by-step explanation:
Given is a figure of isosceles trapezoid. One pair of opposite sides are parallel and non-parallel sides acts as it's transversals.
Therefore,
4x° + (6x + 20)° = 180° ( interior angles on the same side of transversal)
(6x + 20 + 4x)° = 180°
(10x + 20)° = 180°
10x + 20 = 180
10x = 180 - 20
10x = 160
x = 160/10
x = 16
Measure of base angles of an isosceles trapezoid are equal.
Therefore,
y° = (6x + 20)°
y = 6x + 20
y = 6*16 + 20
y = 96 + 20
y = 116