When a number is followed by an exclamation point (!) it means that number gets multiplied by all the numbers below it.
So 7! = 7*6*5*4*3*2*1 = 5040
4! = 4*3*2*1 = 24
6! = 6*5*4*3*2*1 = 720
Now the equation is:
5040 * 24 -720
5040 *24 = 120960
120960 - 720 = 120240
The answer is A.
Answer:
Step-by-step explanation:
Hi there!
<u>What we need to know:</u>
- Linear equations are typically organized in slope-intercept form: where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)
- Perpendicular lines always have slopes that are negative reciprocals of each other (ex. -1/3 and 3, 1/2 and -2, etc.)
<u>1) Determine the slope (m)</u>
Looking at the given equation, we can identify clearly that is in the place of m, making it the slope of the line. Because perpendicular lines always have slopes that are negative reciprocals, we know that the slope of the line we're solving for will be . Plug this into :
<u>2) Determine the y-intercept (b)</u>
Plug in the given point (-3,5)
Subtract 4 from both sides
Therefore, the y-intercept is 1. Plug this back into :
I hope this helps!
Answer:
South-South West
Step-by-step explanation:
157°30' or 157.5° on compass point represents South-South West.