Answer:
mm
Step-by-step explanation:
Answer:
1. it's a right angle. therefore it has a total of 90°
to get the value of x we start with:
90° - 54° = 36°
(10X+16)°=36°
10X = 36 -16
10X = 20
X = 2
Answer:
x = 29
Angle A = 46.4°
Angle B = 43.6°
Step-by-step explanation:
Since it is a right angle triangle, we can find x from pythagoras theorem;
x = √(20² + 21²)
x = √(400 + 441)
x = √841
x = 29
Using trigonometric ratios we can find angles A and B.
Opposite is 20
Adjacent is 21
Thus; opp/adj = tan B
20/21 = tan B
B = tan^(-1) 0.9524
B = 43.6°
Sum of angles in a triangle is 180°. Thus;
A = 180 - (90 + 43.6)
A = 46.4°
$139.99+ $18.50= $158.49
then you do...
$158.49 - $139.99 and your answer would be $18.50
hope this helped :)
alisa202
384 in³
the volume (V) of a cuboid = length × width × height
V = 12 × 4 × 8 = 384 in³ ← fourth on list
