Answer:
746590.75
You can alos just type it into a calculator.
Answer:
Ratio as a fraction in simplest form is,
Step-by-step explanation:
Ratio defined as the relationship between the quantities of something i.e,
a: b =
Given: 51 correct : 9 incorrect
By definition of ratio:
51 correct : 9 incorrect =
Divide both numerator and denominator by 3 we get;
then
The ratio as a fraction in simplest form is, 17 correct : 3 incorrect or
Answer:
68% of races will his finishing time be between 79.5 and 82.5 seconds
Step-by-step explanation:
Mean time = 81 seconds
Standard deviation = 1.5 seconds
According to the empirical rule : 68%, 95%, 99% lies within 1, 2, and 3 standard deviations of the mean respectively.
Hence, for a finishing time between : 79.5 and 82.5
79.5 = 81 - 1.5 (1 standard deviation to the left of the mean)
82.5 = 81 + 1.5 (1 standard deviation to the right of the mean)
Hence,
79.5 and 82.5 lies within 1 standard deviation from the mean and it is Hence has a percentage of 68%
Answer:
12
Step-by-step explanation:
I am pretty sure this is the answer. If it is correct i can give the explanation
Answer:
Step-by-step explanation:
x=
−b±√b2−4ac
2a
x=
−(−13)±√(−13)2−4(1)(5)
2(1)
x=
13±√149
2
x=
13
2
+
1
2
√149 or x=
13
2
+
−1
2
√149