If two lines intersect in the same plane to form a right angle, what can be concluded?
a)the angle formed is acute. b)the angle formed is obtuse. c)the lines are parallel. d)the angle formed is 90 degrees.

b. 2 and 4

step-by-step explanation:

the number of possible outcomes that do not show a 1 on the first spinner and show the number 4 on the second spinner is 2.

spinner 1 spinner 2

1                     1

1                     2

1                     3

1                     4

2                   1

2                   2

2                   3

2                   4   = not 1, and 4

3                   1

3                   2

3                   3

3                   4 = not 1, and 4

only 2 outcomes have passed the given condition.

step-by-step explanation: