Now plug the x value into 9x + 2
Hope that helps!
Answer:
264 ft³
Step-by-step explanation:
The following data were obtained from the question:
Pi (π) = 3.14
Height (h) = 21 ft
Radius (r) = 2 ft
Volume (V) =..?
The volume of the cylinder can be obtained as follow:
V = πr²h
V = 3.14 × 2² × 21
V = 3.14 × 4 × 21
V = 264 ft³
Therefore, the of the cylinder is 264 ft³
Answer:
The Standard Deviation is a measure of how spread out numbers are.
Its symbol is σ (the greek letter sigma)
The formula is easy: it is the square root of the Variance. So now you ask, "What is the Variance?"
Variance
The Variance is defined as:
The average of the squared differences from the Mean.
To calculate the variance follow these steps:
Work out the Mean (the simple average of the numbers)
Then for each number: subtract the Mean and square the result (the squared difference).
Then work out the average of those squared differences. (Why Square?)
Step-by-step explanation:
Answer:
1,620 square inches
Step-by-step explanation:
The area of one triangle can be computed using the formula ...
A = 1/2bh . . . . where b represents the base length, h represents height
A = 1/2(18 in)(36 in) = 324 in²
Then the area of 5 flags will be 5 times that much:
fabric needed = 5 × (324 in²) = 1,620 in²
Brian will need 1,620 square inches of fabric for his 5 triangular flags.
