Start by FOILing: First, Outer, Inner, Last.
3x•x= 3x^2; 3x•2= 6x; 2•x= 2x; 2•2= 4
Put it all together
3x^2 + 6x + 2x + 4
Combine like terms to get your answer
3x^2 + 8x + 4
Answer:
isosceles triangle
Step-by-step explanation:
An isosceles triangle has 2 congruent sides
The triangle described here has 2 congruent sides of 8 cm
The triangle is isosceles
Because he lives farther from the school than Anneika more than likely
Answer:
∫ C ( y + e√x) dx + ( 2x + cosy² ) dy = 1/3
Step-by-step explanation: See Annex
Green Theorem establishes:
∫C ( Mdx + Ndy ) = ∫∫R ( δN/dx - δM/dy ) dA
Then
∫ C ( y + e√x) dx + ( 2x + cosy² ) dy
Here
M = 2x + cosy² δM/dy = 1
N = y + e√x δN/dx = 2
δN/dx - δM/dy = 2 - 1 = 1
∫∫(R) dxdy ∫∫ dxdy
Now integration limits ( see Annex)
dy is from x = y² then y = √x to y = x² and for dx
dx is from 0 to 1 then
∫ dy = y | √x ; x² ∫dy = x² - √x
And
∫₀¹ ( x² - √x ) dx = x³/3 - 2/3 √x |₀¹ = 1/3 - 0
∫ C ( y + e√x) dx + ( 2x + cosy² ) dy = 1/3
518 + 372
= 500 + 18 + 300 + 72
= 800 + 18 + 72
= 800 + 90
= 890