1st day: 1 1/2 hours
2nd day: half of first day = 1/2 * 1 1/2 hours
3rd day: 2 1/2 times as long as first day: 2 1/2 * 1 1/2 hours
1 1/2 + 1/2 * 1 1/2 + 2 1/2 * 1 1/2 =
= 3/2 + 1/2 * 3/2 + 5/2 * 3/2
= 3/2 + 3/4 + 15/4
= 6/4 + 3/4 + 15/4
= 24/4
= 6
Answer: She studied for 6 hours over the 3-day period.
Since angle RST is a right angle, it has a measure of 90°.
Angle RSU could either be inside or outside the right angle.
If Angle RSU is inside, the measurement of Angle TSU is:
90°- 25° = 65°
If Angle RSU is outside, the measurement of Angle TSU is:
90° + 25° = 115°
178
You add 85cm plus 258cm plus 13cm then you get the answer divide it by 2 you get
178cm
Given:
The graph that shows the ennoblement for college R between 1950 and 2000.
To find:
The two decades that has the greatest change in enrollment.
Solution:
From the given graph, it is clear that the change in the enrollment is:
From 1950 to 1960 is 
thousand.
From 1960 to 1970 is 
thousand.
From 1970 to 1980 is 
thousand.
From 1980 to 1990 is 
thousand.
From 1990 to 2000 is 
thousand.
The two decades 1960-1970 and 1980-1990 have the greatest change in enrollment.
Y=(x-3)^2+36
Using (a-b)^2=a^2-2ab+b^2, with a=x and b=3
y=(x)^2-2(x)(3)+(3)^2+36
y=x^2-6x+9+36
y=x^2-6x+45
Answer: Option C. y=x^2-6x+45
