First let's find the angles a and b.
We have then:
sin a = 4/5
a = Asin (4/5)
a = 53.13 degrees.
cos b = 5/13
b = Acos5 / 13
b = 67.38 degrees.
We now calculate cos (a + b). To do this, we replace the previously found values:
cos ((53.13) + (67.38)) = - 0.507688738
Answer:
-0.507688738
Note: there is another way to solve the problem using trigonometric identities.
You would add the x to both sides, cancelling out the x on the side with 2y. Then you divide by 2 leaving you with y=1/2x+3
Answer:
<h2>brainiest me</h2>
Step-by-step explanation:
mathematics, 18.07.2020 01:01 8.07.2020 01:01
Answer:
$4.572
Step-by-step explanation:
8% of the meal
8/100 X 5.90
0.08 X 5.90
= $0.472
amount to be paid = $5.90- $0.472
= $5.428
She has to pay $5.428 dollars but she paid with $10 bill
she would get back
$10 - $5.428
= $4.572
Answer: y=x+15
every time x goes up by 5 y goes up by 5 also. If we look at the linear pattern 15+15=30, 20+15=35 and so on.
