Answer:
Step-by-step explanation:
Let's solve for x.
−2x−3=y
Step 1: Add 3 to both sides.
−2x−3+3=y+3
−2x=y+3
Step 2: Divide both sides by -2.
−2x
−2
=
y+3
−2
x=
−1
2
y+
−3
2
Answer:
x=-1/2y+-3/2 i have the answer but the shown work is messed up sorry
Answer:
dependent-samples t test
Step-by-step explanation:
Here we want to test the effect of game Dance Dance Revolution (DDR) on heart rate.
The hypothesis is
where,
Where Xi = heart rate before playing the game Dance Dance Revolution (DDR)
Yi = heart rate after playing the game Dance Dance Revolution (DDR)
This test is paired t-test( dependent sample t test).
To measure the effect of experiment. (before - after condition)
Answer: 6
Step-by-step explanation:
T = 2.5h
l = t + 1.6
l = 2.5h + 1.6
5.2 = 2.5h + 1.6
5.2 - 1.6 = 2.5h
3.6 = 2.5h
3.6 / 2.5 = h
1.44 = h <===== length of head is 1.44 meters
The answer to this is Janelle runs 3.8 times faster than jean
I hope this helps!!!!!!