Answer:
x=35
Step-by-step explanation:
3x+15=2x+50 (opposite angles are equal)
3x=2x+35
x=35
Answer:
j=12
Step-by-step explanation:
j/3+5=9
x3 x3
j+15 = 27
-15 -15
j=12
Answer:
[B] A two-sample t -test for a difference between means.
Step-by-step explanation:
"<u>A two sample t test for a difference in means was conducted to investigate whether the average time to swim a lap with the freestyle stroke is different from the average time to swim a lap with the butterfly stroke</u>."
<h3>Answer:</h3>
A. If two lines intersect and form right angles, they intersect and form 90° angles.
<h3>Explanation:</h3>
The first conditional can be described by ...
... if p then q
where
- p = two lines intersect and form right angles
- q = the lines are perpendicular
The second conditional can be described by ...
... if q then r
where
- r = they intersect and form 90° angles.
___
The Law of Syllogism tells us that we can conclude ...
... if p then r
where p and r are as defined above. This translates to ...
... If two lines intersect and form right angles, then they intersect and form 90° angles. (matches selection A)
