Answer:
The answer is 720 ways.
Step-by-step explanation:
Total friends who volunteered = 10
Total number of jobs that have to be done = 3
Here order matters, so it is a permutation question.
We can use the formula nPr.
= 
= 720 ways.
The second way to solve this is:
Susan can choose the first person to do a job in 10 ways
Then the second job can be done in 9 ways and the third in 8 ways.
Total becomes =
ways
Answer:
a) 
b) 
c) 
d) 
Step-by-step explanation:
a) The problem tells us that angle
is in the second quadrant. We know that in that quadrant the cosine is negative.
We can use the Pythagorean identity:

Where we have used that the secant of an angle is the reciprocal of the cos of the angle.
Since we know that the cosine must be negative because the angle is in the second quadrant, then we take the negative answer:

b) This angle is in the first quadrant (where the sine function is positive. They give us the value of the cosine of the angle, so we can use the Pythagorean identity to find the value of the sine of that angle:

where we took the positive value, since we know that the angle is in the first quadrant.
c) We can now find
by using the identity:

Notice that we need to find
, which we do via the Pythagorean identity and knowing the value of the cosine found in part a) above:

Then:

d)
Since 
then 
Answer:
The monthly payment will consequently decrease
Step-by-step explanation:
If the interest rate charged say on a mortgage loan is decreased, then the total repayments due will as a consequence decline provided the repayment term remains unaltered. Nevertheless, a decline in total repayments due amounts to a decrease in the monthly or annual repayments
The congruence symbol is this: ≅.
It’s saying to write the statement that’s saying both shapes are congruent. For example ABC ≅ DEF but use the letters in the shapes they gave.
Yes true it's basically saying any positive number squared is bigger than the number being squared now give me brainliest