Answer:
-3 and 17
Step-by-step explanation:
Let the number be = x
x - 7 = -10
x = -10 + 7
x = -3
OR
7 - x = -10
- x = -10 - 7
- x = -17
x = -17/-1
x = 17
The two possible numbers are -3 and 17
-30+-11= -41
Basically any numbers that add to 41 will work you just have to make both of them negative:)
The answer to the question is Option C!
We need to 'standardise' the value of X = 14.4 by first calculating the z-score then look up on the z-table for the p-value (which is the probability)
The formula for z-score:
z = (X-μ) ÷ σ
Where
X = 14.4
μ = the average mean = 18
σ = the standard deviation = 1.2
Substitute these value into the formula
z-score = (14.4 - 18) ÷ 1..2 = -3
We are looking to find P(Z < -3)
The table attached conveniently gives us the value of P(Z < -3) but if you only have the table that read p-value to the left of positive z, then the trick is to do:
1 - P(Z<3)
From the table
P(Z < -3) = 0.0013
The probability of the runners have times less than 14.4 secs is 0.0013 = 0.13%
Answer:
the answer is 5/3.
Step-by-step explanation: