Answer:
Jay spend $32 on his new sneakers.
Step-by-step explanation:
The complete question is
Jay had $80. He used 2/5th of his money to buy new sneakers. How much did Jay spend on his new sneakers?
Solution
Given
The total sum of money with Jay = $80
He used 2/5th of his money to buy new sneakers
The amount of money used to buy the sneakers = 2/5 * $80
2 * $16 = $32
Jay spend $32 on his new sneakers.
Answer:
f = tanx *i + y³*j
Step-by-step explanation:
F(x,y) = ??
Fx,y) = gradf
Then
f(x,y) = ∫ sec²x dx + ∫ 3y²dy
∫ sec²x dx = ∫ 1/ cos²x dx
By change of variables
if z = tan x then z = sinx/cosx
dz/dx = cosx*cosx - (-sinx*sinx) / cos²x
dz/dx = cos²x + sin²x /cos²x
dz/dx= 1 /cos²x
dz = dx/ cos²x
∫ 1/ cos²x dx = ∫dz = z = tanx
And ∫3*y² = y³
Then f = tanx *i + y³*j
Answer:
2 and 4
Step-by-step explanation:
Sec x = 1/cos x
cos 2x = cos^2 x - sin^2 x
sec 2x = 1/(cos^2 x - sin^2 x)
Option A is the correct answer.
Answer:A system of linear equations usually has a single solution, but sometimes it can have no solution, or infinite solutions.One solution. A system of linear equations has one solution when the graphs intersect at a point.
Step-by-step explanation: