Answer:
x=9
Step-by-step explanation:
2(9)+3
18+3=21
3(9)-6
27-6=21
when you plug in 9 for the x variable you will get the same end value
A clock has 12 hours on it.
360/12 = 30
Each hour is 30 degrees.
3pm to 7:30pm is 4.5 hours
Multiply total hours by degrees per hour:
4.5 x 30 = 135 degrees
I hope this helps you
9=n.n
3.3=n.n
n=3
Solution:
We have: In the attached image, observe rectangle triangle ΔBAD
Use the Pythagorean Theorem:
BD = √(AB² + AD²)
BD = √(2² + 4²)
BD = √(4 + 16)
BD = √20
In the attached image, observe rectangle triangle ΔBDH
Use the Pythagorean Theorem:
BH = √(BD² + DH²)
BH = √(√20² + 5²)
BH = √(20 + 25)
BH = √45
BH = √(9 × 5)
BH = √9 × √ 5
BH = 3√5
BH = 3 × 2.24
BH = 6.72 cm
Answer:
x=-2/3
y=4/5
Step-by-step explanation:
solve for the first variable in one of the equations and then substitute the result into the other equation