Answer:
6) 10,4,-2,-8
7) 5,10,15,20
8) 1,7,13,18
Step-by-step explanation:
that is the answr
If A is QIV, then 3π/2 ≤A≤2π;
we have to find out in what quadrant is A/2
(3π/2)/2≤A/2≤(2π)/2 ⇒ 3π/4≤A/2≤π
We can see that A/2 will be in QIII; therefore the sec (A/2) will be negative (-).
1) we have to calculate cos (A/2)
Cos (A/2)=⁺₋√[(1+cos A/2)/2]
We choose this formula: Cos (A/2)= -√[(1+cos A/2)/2], because sec A/2 is in quadrant Q III, and the secant (sec A/2=1/cos A/2) in this quadrant is negative.
Cos (A/2)=-√[(1+cos A)/2]=-√[(1+(1/2)]/2=-√(3/4)=-(√3)/2.
2) we compute the sec (A/2)
Data:
cos (A/2)=-(√3)/2
sec (A/2)=1/cos (A/2)
sec (A/2)=1/(-(√3)/2)=-2/√3=-(2√3)/3
Answer: sec (A/2)=-(2√3)/3
17.5
The pattern is to add 2.5 to every number.
Question:
Carlos mixed 
of chocolate syrup with 
of milk. Determine a reasonable estimate of the total amount of liquid Carlos mixed
Answer:
0.8 liters of liquid
Step-by-step explanation:
Given
Required
An estimate of the total liquid
First, we get the actual total liquid.
Take LCM
Express as decimal
Estimate [Approximate]
