Answer:
<em>UV </em>= 8.9 <em>∠V=</em>30° <em>∠U</em>=60°
Step-by-step explanation:
1. Find the hypotenuse (<em>UV </em>)
8^2+4^2=c^2
64+16=c^2
80=c^2
C= 
or 8.94427191...
2. We know this is a right triangle is a 30, 60, 90 triangle because the sides are not the same. This means ∠V=30° and ∠U=60° The 30 degree angle is opposite of the short leg and the 60 degree angle is opposite of the long leg.
0.3 inches per hour, if I did the math correctly.
Answer:
The first one and the last one
Step-by-step explanation:
To sub x>0 and x<0 into every functions.
Then, u will get some function that y doesn't have a negative value or positive value.
Then, these function doesn't fulfill the range.
Then, u will get the answer.
Answer:
5X + 8Y >= 300; intersection at (-20, 50)
Step-by-step explanation:
let t = work hours
0 < t < 30
X = time lawn mowing
Y = time babysitting.
X + Y < 30
5X + 8Y >= 300
We could solve...
X < 30 - Y
5(30 - Y) + 8Y >=300
150 - 5Y + 8Y >= 300
3Y >=150
Y >=50
then X < -20
intersection at (-20, 50)
Answer:
x=11, y=10
Step-by-step explanation:
x= 6+ (1/2)y
x+y=21
substitute the first equation into the second equation:
(6+ (1/2y)) + y =21
to get:
y=10
then to find x:
x+ 10 = 21
x=11
