Answer:
x=4, y =0
Step-by-step explanation:
To convert to rectangular from, we use the formulas
x= rcos theta
y = rsin theta
Substitute r=4 and theta =0
x = 4 cos (0) = 4 (1) = 4
y = 4 sin (0) = 4(0) = 0
In rectangular form (4,000°) equals ( 4, 0)
Answer:
option 4
Step-by-step explanation:
using the sine/ cosine ratios in the right triangle and the exact values
cos30° = 
, sin30° = 
, then
cos30° = 
= 
= ( cross- multiply )
2x = 20
× = 20 × 3 = 60 ( divide both sides by 2 )
x = 30
and
sin30° = 
= 
= ( cross- multiply )
2y = 20 ( divide both sides by 2 )
y = 10
Answer:
1cm
Step-by-step explanation:
from the scale we know that
1cm on the map is equal to 300cms on the ground
Below I have made a table and used the unitary method.
Distance on Map Distance on ground
1cm 300cm
let width be = x width = 3m = 300cm
hence
width = ( 1 ×300)/ 300 = 1cm
Hope this helps
Answer:
15
Step-by-step explanation:
a²+20²=25²
a²=625-400
a²=225
a=15
