Answer:
E. he multiplied 9 and 0.7 incorrectly.
Step-by-step explanation:
1/2 because there is 7 girls and 7 boys in total
Answer:
It is linear
Step-by-step explanation:
The Y goes up by the same amount as the X (by 4 Y's per 1 X)
The derivative of
in the direction of a vector
is

With
, we get

and
,

Then

Step-by-step explanation:
cot x / (1 + csc x)
Multiply by conjugate:
cot x / (1 + csc x) × (1 − csc x) / (1 − csc x)
Distribute the denominator:
cot x (1 − csc x) / (1 − csc²x)
Use Pythagorean identity:
cot x (1 − csc x) / (-cot²x)
Divide:
(csc x − 1) / cot x