You can use All Students Take Calculus (ASTC) to remember when the trig ratios are positive or negative. ASTC goes with the quadrants. A is All, S is sin, T is tangent, C is cosine, and they are positive in those quadrants.
So ALL (sin, cos, tan) are positive in quadrant I, only sin is positive in quadrant II, only tan is positive in quadrant III, and only cos is positive in quadrant IV.
So it says sin < 0, so sin is negative.
And cos > 0, is cos is positive.
Remembering ASTC, the only quadrant with cos positive is quadrant IV.
Answer:
11
Step-by-step explanation:
There is no working you literally just divide
Answer:
B. Less than a day
Step-by-step explanation:
From the question, the circuit board manufacturer produces 2000 board per hour.
Let x be the number of hours it will take to produce 16500 boards .
That’s
2000 boards = 1 hour
16500 boards = x hour
Cross multiply
xhour x 2000 = 1 x 16500
x hour = 16500/2000
x hour = 8.25 hours
8.25 hours is less than a day
Answer:
Let’s use 2 methods to do this:
First, let’s try cross multiplying:
3/4=x/20
2/5=x/20
20 times 3 = 60
60 divided by 4 is 15, so 3/4 = 15/20
20 times 2 = 40
40 divided by 5 is 8, so 2/5 = 8/20
The next method:
What time 4 equals to 20? What times 5 equals to 20?
4 times FIVE equals to 20
For the fraction of 3/4, multiply the numerator and the denominator by five to get your answer of 15/20.
5 times FOUR equals to 20
For the fraction of 2/5, multiply the numerator and the denominator by four to get your answer of 8/20.
Hope I helped!
Answer:
oof lol
Step-by-step explanation:
