Answer:
80
Step-by-step explanation:
Move the left triangle on top of the right triangle to get a perfectc renctangle of 3+7 by 8 with area 10*8
Sin ( theta ) = - √2 / 2
We will use the unit circle:
m ∠( theta ) = 225° = 5π / 4 + 2 k π , k ∈ Z
m ∠( theta ) = 315° = 7π / 4 + 2 k π, k ∈ Z
Answer:
The angle measure is 5π/4 or 7π/4.
Answer: C 4
Step-by-step explanation:
Use the formula: distance = rate x time
We can say that train 1 travels a distance of x, and train 2 travels a distance of 700 - x
The rate of train 1 is 75 mph, and the rate of train 2 is 100 mph
The time traveled for the two trains will be the same. We can represent that with the variable t.
We have the following equation for train 1:
x = 75t
For train 2, we have this equation:
700 - x = 100t
Use the Substitution Method by replacing x in the equation for train 2 with the value 75t.
700 - 75t = 100t
700 = 175t
700/175 = 4 hours.
It will take 4 hours for the two trains to meet.
Answer:
2/3
Step-by-step explanation:
If we divide both 8 and 12 by 4, we would get 2 and 3. 2/3
Answer:
x=19
Step-by-step explanation:
8x-7 + x+16 = 180
solve for equation for x
9x = 171
x=19