Question

Please answer all my questions below:

Answer 1

Step-by-step explanation:

refer to the attachment

See if it helps

Answer 2

Answer:

a) The value of 3a + 4b = 87

Step-by-step explanation:

Given :

a = 17 , b = 9

we have to find the value of 3a + 4b

so,

3a + 4b

= 3 × 17 + 4 × 9

=> 51 + 36 = 87

therefore , the value is 87 :

ANSWER :

b) The velocity is 13.5 m/s

explanation :

Given ,

Initial velocity ( u ) = 3 m/s

acceleration ( a ) = 1.5 m/s^2

time ( t ) = 7 seconds

we have to find the velocity

by using the formula we find the velocity

velocity = u + at

v = 3 + 1.5 × 7

v = 13.5 m/s