Yes it is A. I had the same question.
Answer:
cos Θ
Step-by-step explanation:
I assume you mean
sec Θ − tan Θ sin Θ =
= 1 / cos Θ - sin Θ / cos Θ × sin Θ
= 1 / cos Θ - sin² Θ / cos Θ
= (1 - sin² Θ) / cos Θ Eq. 1
Recall the identity: sin² Θ + cos² Θ = 1
Subtract sin² Θ from both sides:
cos² Θ = 1 - sin² Θ
Substitute 1 - sin² Θ with cos² Θ in Eq. 1
= cos² Θ / cos Θ
= cos Θ
Answer:
<h2>B.</h2>
Step-by-step explanation:
Unit prefix:
mili = 0.001
kilo = 1,000
A. 11 grams = 11 · 1,000 miligrams = 11,000 miligrams ≠ 1,000 miligrams
B. 7 liters = 7 · 1,000 mililiters = 7,000 mililiters > 700 mililiters CORRECT :)
C. 5 mililiters < 5 liters = 5,000 mililiters
D. 4 kilograms = 4 · 1,000 grams = 4,000 grams > 3,000 grams
Answer:
V=720ft³
Step-by-step explanation:
V=whl=4·20·9=720ft³
happy to help
