A² - 225 = (a-15)(a+15)
..................................................................
Answer:
I'm telling you once in my life, I committed mistake and I'M NOT POINT STEALER. put that in mind. You hurt me.
Let's solve for x.
2x+3y=5
Step 1: Add -3y to both sides.
2x+3y+−3y=5+−3y
2x=−3y+5
Step 2: Divide both sides by 2.
2x
2
=
−3y+5
2
x=
−3
2
y+
5
2
Answer:
x=
−3
2
y+
5
2
Answer: The swimmer dives into the water 5 seconds after the timer is started.
The swimmer comes back up 11 seconds after the timer is started.
Step-by-step explanation:
Answer:
3026
30
Step-by-step explanation: Average sum of the female and male's test score is the sum of expected value of each gender:

Assuming x represents the random male selected and y represents the random female selected:

3026
The average sum of their scores is 3026.
Average difference is the difference between the expected value (mean) of each gender:

1528 - 1498
30
The average difference of their scores is 30.
Answer:
B) Subtract 12-4 to calculate the range of this data set