What is x in this situation?
Answer:
4³ = 64
Step-by-step explanation:
4 * 4 * 4 = 64
Multiply the big number a certain amount of times. The amount is specified in exponential form on the top. So in this case, you multiply 4 three times.
Answer:49.8
Step-by-step explanation:
It's the half of a 90 degree angle
Answer:
Variance = 25
Step-by-step explanation:
<em>Standard deviation is the under root of variance.</em>
<em>Variance is the square of standard deviation.</em>
<u>Data:</u>
Mean = 70
Variance = ?
Standard deviation = √variance = 5
Variance = 5²
Variance = 25.
Therefore, the variance is 25.