<h3>Given</h3>
right triangle with side "a" = 12 and hypotenuse "c" = 15
<h3>Find</h3>
cos(∠A)
<h3>Solution</h3>
The Pythagorean theorem tells you
... b = √(c² - a²) = √(225 - 144) = √81 = 9
The definition of the cosine tells you
... cos(A) = b/c = 9/15
... cos(A) = 3/5 . . . . . . reduce the fraction
Since the angle altogether is 180°
You just need to subtract 28 and 48 from 180
28+48=76
180-76=104
Answer: 104°
Hope this helps!! <3
From the expression, the price is directly proportional to the boxes with k being the constant. therefore he bought 4 boxes for 25.6 having the initial constant to be 6.4
if he bought 10 boxes having a constant of 6.4 it becomes y=6.4*10 which becomes 64.
Hi there! A ratio is the same thing as a fraction. So, we have a ratio of 24 messages: 10 messages. That would be 24/10. If you want to simplify 24/10 that would be 12/5. But 12/5 as a mixed number would be 2 2/5.
Answer:
x = minus two
Step-by-step explanation:
5x+3 = 2x-3
5x-2x = -3-3
3x = -6
x = -6÷3
x = -2
