Answer:
Learn to find the sine, cosine, and tangent of 45-45-90 triangles and also ... Until now, we have used the calculator to evaluate the sine, cosine, and tangent of an angle. However, it is possible to evaluate the trig functions for certain angles without ... This is because there are two special triangles whose side ratios we know!
Step-by-step explanation:
Your answer is D because $25 is a fixed one-time cost, and then you pay $4 every time you visit (x is the amount of times you visit). Your monthly total is $53, and 25 + 4x = 53 sums it up exactly.
Answer:
<h2>y = 2</h2>
Step-by-step explanation:
Put x = -13 to the equation -3x + 9y = 57
(-3)(-13) + 9y = 57
39 + 9y = 57 <em>subtract 39 from both sides</em>
9y = 18 <em>divide both sides by 9</em>
y = 2
Answer:22/
9
= 2 4/
9
≅ 2.4444444
Step-by-step explanation:
Add: -19 + 9 = -10
Absolute value: abs(the result of step No. 1) = abs(-10) = 10
Divide: the result of step No. 2 / 3 = 10 / 3 = 3.3333333333333 = 10/
3
Subtract: 14 - 22 = -8
Absolute value: abs(the result of step No. 4) = abs(-8) = 8
Divide: the result of step No. 5 / 9 = 8 / 9 = 0.88888888888889 = 8/
9
Subtract: the result of step No. 3 - the result of step No. 6 = 10/
3
- 8/
9
= 10 · 3/
3 · 3
- 8/
9
= 30/
9
- 8/
9
= 30 - 8/
9
= 22/
9
