Answer:
a = 139.1
b = 56.2
Step-by-step explanation:
A. Reference angle = 68°
Opp = a
Hyp = 150
Therefore:
Sin 68 = opp/hyp
Sin 68 = a/150
150*sin 68 = a
a = 139.1 (nearest tenth)
B. Reference angle = 68°
Adj = b
Hyp = 150
Therefore:
Cos 68 = adj/hyp
Cos 68 = b/150
150*cos 68 = b
b = 56.2 (nearest tenth)
Answer:
C
A
E
D
B
I got this right on my assignment
equation csn be represented as
money left = 500 - (n-1)×4.65
so we can see in first week money left
= 500 - (1-1)×4.65= 500-0=500
which is true because first week chaya got gift card and does not spend any money.
now lets assume that on week n money left is 327.95
so by equation
500 -(n-1)×4.65 = 327.95
500- 327.95 =( n-1)× 4.65
n -1 = 172.05/4.65=37
n = 37+1 = 38
in 38th week money left would be 327.95
I can't zoom in on the picture to see the questions. Its too fuzzy. Can you take another picture?
33.
We have an isosceles triangle, which means that two of the sides of the triangle are equals, the same is with the angles
side LM= side MN
angle L =angle N
Also we need to remember that the sum of the interior angles of a triangles is 180°
angle M=120
angle N=x
angle L=x
120+x+x=180
2x=180-120
2x=60
x=60/2
x=30
m < M =120°
m< N=30°