At a certain time instant, the vector → a ( t ) a→(t) has → a = − ^ ı + 4 ^ ȷ m ˙ → a = ^ ı + ^ ȷ m / s . a→=−ı^+4ȷ^ ma→˙=ı^+ȷ^ m/s. matlab/mathematica input: avec = [-1,4] adotvec = [1,1] at this same instant of time, what is d d t ∥ proj ( → a ( t ) , ^ a ( t ) ) ∥ ddt‖proj⁡(a→(t),a^(t))‖?

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

answer: ♡♡♡♡♡♡♡♡♡♡

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -