Answer:
x=50
Step-by-step explanation:
It is a line so it should be 180 degrease. You already have two of the angles and to find the third (x) you just need to subtract them from 180. 180-105=75, and 75-25 is 50, so x is 50.
{ x + y = 5 * ( -3 )
3x + 2y = 10
- 3 x - 3 y = - 15
3 x + 2y = 10
_______________
- y = - 5 * ( -1 )
y = 5
For x :
3 x + 2 y = 10
3 x + 2 * ( 5 ) = 10
3 x + 10 = 10
3 x = 10 - 10
3 x = 0
x = 0 / 3
x = 0
X = 0 and y = 5
hope this helps!
Answer:
haha sorry taaga wala talaga ehh kala ko nga d na ako makaka balik dto sa acc ko haha(╥﹏╥)
I this is the entire question the answer is 78.74 inches or 6 1/2 feet
Answer:
51 milligrams
Step-by-step explanation:
Exponential growth or decay can be modeled by the equation ...
y = a·b^(x/c)
where 'a' is the initial value, 'b' is the "growth factor", and 'c' is the time period over which that growth factor applies. The time period units for 'c' and x need to be the same.
In this problem, we're told the initial value is a = 190 mg, and the value decays to 95 mg in 19 hours. This tells us the "growth factor" is ...
b = 95/190 = 1/2
c = 19 hours
Then, for x in hours the remaining amount can be modeled by ...
y = 190·(1/2)^(x/19)
__
After 36 hours, we have x=36, so the remaining amount is ...
y = 190·(1/2)^(36/19) ≈ 51.095 . . . . milligrams
About 51 mg will remain after 36 hours.
