A circuit of voltage V volts and resistance R V
ohms has a current of I amps, where I
R
a Find the current when the voltage is 240
volts and the resistance is 80 ohms.
b Find the voltage when the current is
0.6 amps and the resistance is 5 ohms.

a) 3 amp

b) 3 volts

Step-by-step explanation:

As the relationship is given by

V= I*R

a)

I=240/80=3amp

b)

V= 0.6*5 = 3 volts

option 2 is correct.

step-by-step explanation:

we are given two inequality equation

x+y> 5 and -3x+2y< -2

first we draw the graph of both function using t-table method

equation: x+y> 5

for x=0, y=5

for x=-5, y=0

table:

x   :   0     5

y   :   5     0

test point (0,0) , 0> 5

false

equation: -3x+2y< -2

for x=0, y=-1

for x=2, y=4

table:

x   :   0     2

y   : -1       4

test point (0,0) , 0< -2

true

now we draw the graph. see the attachment for graph.

common region would be solution set.

option 2 is correct.