Answer:
A
Step-by-step explanation:
If you were to multiply the top by 7 then add you would cancel out the x and if you were to multiply the bottom by 6 then when you use the subtraction method you multiply the top by negative and if that were to happen you would do -6x + -6x which would cancel nothing out. But if you just add the two equations nothing would cancel out.
Hope this helped!
Answer:
-0.6 yards
Step-by-step explanation:
Answer:
17.5 feet
Step-by-step explanation:
7.5 inches divided by 3 inches is 2.5 (3+3+1.5). 2.5 times 7 is 17.5.
Therefore, the towns are 17.5 feet apart.
9514 1404 393
Answer:
4.0 seconds
Step-by-step explanation:
The equation for ballistic motion is ...
y = -4.9t^2 +22.1t
We want to find the larger value of t that makes y = 10.
10 = -4.9t^2 +22.1t
4.9t^2 -22.1t +10 = 0
Using the quadratic formula, we have ...
t = (22.1 + √(22.1² -4(4.9)(10)))/(2·4.9) = (22.1 +√292.41)/9.8 = 39.2/9.8
t = 4
The ball was in the air 4 seconds before it got stuck.
Answer: 4, 2, 3, 5, 1
Step-by-step explanation:
First, you need to set your compass width or set the compass at one of the terminal points.
After, you can draw arcs above and below.
Then, repeat for the other terminal point.
Finally, connect the intersection of the arcs.