Answer:
1) 64 yd
2) 1.8 ft
3) 15 ft
4) 4 cm
5) B
Step-by-step explanation:
I think its 24% because .24 x 50 is 12 but I could be doing it wrong, sorry I can't say for sure.
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
Answer:
A: 15 + 17h = c B: 4 hours
Step-by-step explanation:
For A you do write the equation by finding your x and your y first
x= $15 fee
y= $17 per hour to clean a house
c= total amount of money charged
For B you can do the problem like this:
You subtract the total amount of money which is $83 by the fixed fee of $15* and then divide your total which is $68 by the amount of money charged per hour which is $17 and you get your answer which is 4 hours.
You can also do your problem like this:
You subtract $83 - $15 to get $68
Then you can multiply $17 per hour by the number of hours that add up to $68 to get your answer.
(No matter what you have to subtract the $83 by the $15)*
Hope that helps you out alot!!!!!
Answer:
8/9 or 0.889
Step-by-step explanation:
Used a calculator