How much time will Alex need to walk to his school, which is 2 1 4 miles away from his house, if he would walk with the speed of 4 1/2 mph

0.5 hour or 30 mins

Step-by-step explanation:

2.25 miles / 4.5 miles/hour = 2.25 miles x 4.5 hours/mile = 0.5 hours.

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.

the fist one is not equalvalent but i think th second one isand the third isnt definetly or the last one is i think. hope this !

step-by-step explanation: