sin(θ) < 0 is another way to say sin(θ) is negative.
tan(θ) < 0 is another way to say tan(θ) is negative.
let's recall that, on the III Quadrant sine and cosine are both negative, and thus the tangent is positive, recall tan(θ)=sin(θ)/cos(θ).
on the IV Quadrant however, sine is negative and cosine is positive, thus tangent is negative.
Answer:
The value of b is 21
Step-by-step explanation:
29=√20^2+b^2
or, 29=√400+b^2
or, 841=400+b^2
or, 841-400=b^2
or, √441=b
b=21
Answer:
102
Step-by-step explanation:
The average is calculated using
average = 
let your score be x, then
= 40 ( multiply both sides by 4 )
18 + x = 120 ( subtract 18 from both sides )
x = 102 ← your number
Answer:
3 weeks and they both passed 17 test
Step-by-step explanation:
11+2=13 13=2=15 15+2=17
5+2=7 7+5=12 12+=17
by the third week they will both be equal and passed 17 test :)
