To solve the the question we proceed as follows:
From trigonometric laws
(cos x)^2+(sin x)^2=1
(cos y)^2+(sin y)^2=1
sin (x-y)=sin x sin y-sin y cos x
cos (x-y)=cos x cos y+ sin x sin y
si x=8/17
cos x=sqrt(1-(sin x)^2)=sqrt(1-64/289)=sqrt(225/289)=15/17
cos y=3/5
sin x= sqrt(1- (cos x)^2)= sqrt(1-9/25)=sqrt(16/25)=4/5
thus
tan (x-y)=[sin (x-y)]/[cos (x-y)]
=[sin x cos y-sin y cos x]/[cos x cos y+sin x sin y]
plugging in the values we obtain:
[8/17 *3/5-4/5*15/7]/[15/17*3/5+8/17*4/5]
simplifying
[24/85-60/85]/[45/85+32/85]
=-36/77
Assume about 400 jelly beans fit in the jar.
Answer:
<h2> 8.06ft</h2>
Step-by-step explanation:
step one:
This problem is on the mensuration of solids,
given that the area is 65ft^2
step two:
we know that the expression for the area of a solid is
areaa= length* length
area= l^2
step three:
substituting the value of the area into the expression we have
65=l^2
we need to square both sides to solve for l we have
√65=l
l= 8.05ft
step four:
From the analysis we found the length of one side to be 8.06ft
Explanation:A is the right answer
Easy!!!