<span>100 degrees :) cameorn mcdaniel
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A. (18,29)
B. 3x + 4y = 170
C. 50 feet
D. Y=5; 100sec
The point-slope form:
We have the point (4, -6) and the slope m = 3/5. Substitute:
The Trigonometric Pythagorean Theorem is always true:
If we solve for we get
We know
so both sides are clearly between zero and one.
It's actually much better to do geometry using squared sine, but that's a topic for another day. It comes from replacing angle, a complicated directed meeting of two rays, with the intersection of two lines. Among many advantages, this eliminates quadrants.
But we know sine and cosine can be positive or negative. So we need the multivalued square root:
The means that it might be plus, it might be minus, if you just tell me the cosine there's not (usually) enough information to know which.
So yes, sometimes
That's a negative sine. If the cosine is positive, is in the fourth quadrant. If the cosine is negative, is in the third quadrant.
Answer:
Total cost = 16
Step-by-step explanation:
In the equation of cost, we can see that each rose costs 3 and each petunia costs 2.5.
To find the total cost of two roses and four petunias, we can use the values r = 2 and p = 4 in the equation given, so:
Total cost = 3r + 2.5p = 3*2 + 2.5*4 = 6 + 10 = 16
So the total cost of two roses and four petunias is 16.