<span>Last
year, the average math SAT score for students at one school was 475. The
headmaster then introduced a new teaching method hoping to improve scores. This
year, the mean math SAT score for a sample of students was 491. The headmaster
concluded that the new teaching method produces higher SAT scores. The problem
with reporting results this way is voluntary response. The information of how
the teaching method isnot mentioned.</span>
The negative sign show the change in direction, that is the opposite side of the value.
In the number line, 1 is the opposite of -1, that is the digit from the left side is the opposite value of the right side.
Consider an object P is moving in positive x direction than on moving the object into its opposite direction, it will move along the negative x axis.
Answer : A) -
Step-by-step explanation:
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Answer:10.6
Step-by-step explanation:
Φ=45°
Hypotenuse=15
Opposite=x
SinΦ=opposite ➗ hypotenuse
Sin45=x/15
0.7071=x/15
Cross multiply
x=15 x 0.7071
x=10.6