Answer:
-2
Step-by-step explanation:
3*(-2)=-6
-6*(-2)=12
12*(-2)=-24
Cosine means complementary sine, the sine of an angle and the cosine of the complementary angle are the same.
sin 75° = cos θ
cos (90° - 75°) = cos θ
cos 15° = cos θ
In general when we have
cos x = cos a
the solution is
x = ±a + 360°k, integer k
Here they just went with x=a, or
θ = 15°
Answer: C θ = 15°
There will be 3,500 bacteria after 7 hours.
If you gave away 280 of 600 business cards and you would like to know what percent of the cards is left, you can calculate this using the following steps:
600 - 280 = 320 cards are left
320 / 600 = 8 / 15 = 0.5333 = 53.33%
The correct result is D. 53.33%.
.23 times 5 is 1.15
the answer would be she used 1.15 feet of ribbon