Answer:
(f-1)
Step-by-step explanation:
If you substitute a for (f-1) you get the expression...
I think it's 400 inches^2 because 23x4x4=268 and 4x4x2=32. Add them together to get 400.
Answer:
1x3 is 3, 3x1=3, 3/3=1. 3/1=3
Step-by-step explanation:
Fact families are three (or four) way families that explain multiple concurrences, like additive, communative, and so on. Here I have provided the fact family above.
Hope this helps :D Please mark brainliest :D
The formula for a z-score is
We don't have μ, the mean, or σ, the standard deviation. We can, however, set up a system of two equations with the information we do have. We know:
We can make this look more like a "typical" system of equations by cancelling the fractional part of each equation. We do this by multiplying the bottom of each equation by σ:
Now we'll get the variables on the same side of the equation. We'll do this by adding μ to both sides:
Now we'll write this vertically:
We will "eliminate" μ by subtracting the bottom equation:
Divide both sides by -5:
Our standard deviation is 5. Substituting this into our top equation we have:
-3(5)+μ=60
-15+μ=60
Cancel the -15 by adding it to both sides:
-15+μ+15=60+15
μ=75
Our mean is 75.
Answer:
<u>-335670</u>
Step-by-step explanation:
<u>Given</u> :
- a₁ = 2
<u>Solving</u> :
- Sum of an arithmetic sequence is given by
- S₃₃₅ = 335/2 x 2(2) + (335 - 1)(-3)
- S₃₃₅ = 335/2 x -4008
- S₃₃₅ = 335 x -2004
- S₃₃₅ = <u>-335670</u>