Answer:
36.50
To two decimal places
Step-by-step explanation:
The hypothenuse side in a right angle triangle has 58cm. While the angle touching one of its leg is 51°. How long is that leg.
From the right angled triangle, the size of the leg touching the hypothenuse is the adjacent side of the triangle, hence in trigonometry, the cosine rule is used, because it involves the adjacent and the hypotenuse.
Cos 51°=x/58
Let the size of the leg be x
Making x the subject
x=58(Cos51°)
x=36.500058
Correct to two decimal place
x=36.50
Answer with Step-by-step explanation:
We are given that displacement of wave
Where y in cm and t in sec.
a.Compare it with
Amplitude of wave=A
We get A=1.5
Amplitude=A=1.5 cm
b.k=0.68
Using 
Wavelength of the wave=9.2 cm
c.Period=
The period of the wave=0.17 s
Speed of the wave=
Speed of the wave=54.1 cm/s
Answer is 4800 and draw a prism like this I'll show you
26-9=$17.00
$1.00=10 texts
17*10=170 texts
170+650 texts= 820 texts
