Answer:
8x^2-4x+5
Step-by-step explanation:
(3x^2+4)-(-5x^2+4x-1)
Let's start by removing the parentheses.
3x^2+4-(-5x^2)-4x+1
Now let's reorder the equation to make it easier to combine like terms.
3x^2+5x^2-4x+1+4
Combine like terms.
8x^2-4x+5
Answer:
-15x-4
Step-by-step explanation:
-21x + 6x-4
-15x-4
Answer:
Step-by-step explanation:
So the Dimensions are:
Height: 300cm
Length: 300cm
Width: 2cm
SA = 2(H*L)+2(H*W)+2(L*W)
= 180000 + 1200 + 1200
= 182400
OR 18.24
Answer:
The standard deviation is 5.29 kg.
Step-by-step explanation:
The standard deviation is the square root of the variance. Mathematically, we have that:

In this problem, we have that:

So



The standard deviation is 5.29 kg.
Answer:
x ≥ 1
Step-by-step explanation:
Since it's a closed circle x could also be equal to 1. Also, since the arrow is pointing away from 1 the answer of x is greater than 1, therefore the answer is x ≥ 1.