Answer:
49 would be the answer
Step-by-step explanation:
7x9-14
7x9 = 63
63-14 = 49
<span>y=4x−1;y=2x−5
Step: Solve y=4x−1 for y:
Step: Substitute 4x−1 for y in y=2x−5:
y=2x−5
4x−1=2x−5
4x−1+−2x=2x−5+−2x(Add -2x to both sides)
2x−1=−5
2x−1+1=−5+1(Add 1 to both sides)
2x=−4
2x/2=−4/2(Divide both sides by 2)
x=−2
Step: Substitute−2 for x in y=4x−1:
y=4x−1
y=(4)(−2)−1
y=−9(Simplify both sides of the equation)
<u>Answer:</u>y=−9 and x=−2</span>
Answer:
The match last for 3 hours and 10 minutes.
Step-by-step explanation:
Match started at 10.25 am
Match ended at 1.35 pm
We need to find how long did the match last.
Minutes between 10.25 am to 11 am = 35 minutes
Minutes between 1 pm to 1.35 pm = 35 minutes
Time between 11 am to 1 pm = 2 hours
Time between 10.25 am and 1.35 pm is :
T = 2 hours 70 minutes
But 1 hour = 60 minutes
T = 2 hours (60+10) minutes
<em><u>T = 3 hours 10 minutes</u></em>
<em>It means the match last for 3 hours and 10 minutes.</em>
Answer:
Therefore we fail to reject the Null hypothesis 
Because the is no sufficient evidence to support the claim of the alternative hypothesis 
Step-by-step explanation:
From the question we are told that
Sample size 
Mean time 1 
Mean time 2 
Standard deviation 
Standard deviation 
Level of significance 0.05
The null hypothesis is 
Alternative hypothesis 
Generally the test statistics is mathematically represented as
From Table the Z-critical value at 
Therefore
Zcal> Zcritical
(-0.43)=(-1.645)
Generally we fail to reject the null hypothesis at 
Therefore we fail to reject the
Because the is no sufficient evidence to support the claim of
Answer:
7 is 20
8 is 40
Step-by-step explanation:
Mean is the total of all the numbers divided by the amount of numbers
