Answer:
AE = 7.5
Step-by-step explanation:
Since <BAC = , then;
<BAD = <DAE = <CAE = (complementary angles)
From ΔABC, applying the Pythagoras theorem to determine the length of side AC;
= +
= +
100 = + 25
= 100 - 25
= 75
AC =
Applying trigonometric function to ΔCAE,
Cos =
AE = × Cos
= 7.5
Therefore, AE = 7.5
Answer:
68
Step-by-step explanation:
Step 1:
( 70 + 2 ) - 4
Step 2:
72 - 4
Answer:
68
Hope This Helps :)
Answer:
(-0.75, 3.5)
Step-by-step explanation:
See below for graph, please!
Hope this helped!
Answer:
radius = 12.3 cm
Step-by-step explanation:
The formula to find the circumference of a circle:
Circumference = 2 × π × r
77 = 2 × π × r
r =
r = 12.3 cm (in 3 significant figures)