Answer:yes
Step-by-step explanation:
-2+-2 =-4
adding two negative number you would always keep the same signs so this answer is negative
Answer:
4. A post-lunch nap decreases the amount of time it takes males to sprint 20 meters.
Step-by-step explanation:
This question wants us to state the claim and the hypothesis.
This researchers claim can be found in the first sentence of this question.
Claim: post lunch nap decreases the time it takes to run for 20 meters.
The correct answer option for the claim is the 4th answer option. And it means that sleeping after lunch reduces the time it takes males to run in a 20m race.
B. Hypothesis
H0: Ud <= 0
H1: Ud > 0
d = is the race time without a nap - race time with a nap
There is one negative number. Do you think the answer is a negative, out of the answer choices they gave you? it could be a positive. I DON'T know the answer. This is just a tip for you
Answer:
105
Step-by-step explanation:
14:20=7:10
150/10=15
7x15=105
Answer:
Step-by-step explanation:
s(1-30/100)=420
s(100-30)/100=420
s(70/100)=420
s(7/10)=420
7s=4200
s=600