Answer:
The y-axis coordinates will decrease since it is being translated down, but the x-axis will remain the same since the triangle isn't being translated to the left or right.
Step-by-step explanation:
Answer:
C. ![\frac{8\sqrt{89}}{89}](https://tex.z-dn.net/?f=%20%5Cfrac%7B8%5Csqrt%7B89%7D%7D%7B89%7D%20)
Step-by-step explanation:
Cos A = Adj/Hyp
Reference angle = <A
Adjacent side = 8 ft
Hypotenuse = √(8² + 5²) = √89 (pythagorean theorem)
Thus:
![Cos (A) = \frac{8}{\sqrt{89}}](https://tex.z-dn.net/?f=%20Cos%20%28A%29%20%3D%20%5Cfrac%7B8%7D%7B%5Csqrt%7B89%7D%7D%20)
Rationalize
![Cos (A) = \frac{8 * \sqrt{89}}{\sqrt{89} * \sqrt{89}}](https://tex.z-dn.net/?f=%20Cos%20%28A%29%20%3D%20%5Cfrac%7B8%20%2A%20%5Csqrt%7B89%7D%7D%7B%5Csqrt%7B89%7D%20%2A%20%5Csqrt%7B89%7D%7D%20)
![Cos (A) = \frac{8\sqrt{89}}{89}](https://tex.z-dn.net/?f=%20Cos%20%28A%29%20%3D%20%5Cfrac%7B8%5Csqrt%7B89%7D%7D%7B89%7D%20)
Answer:
20.1739130435
Step-by-step explanation:
hope this helps!!!
Answer:
<h2>SA = 5645cm²</h2>
Step-by-step explanation:
We have three pairs of congruent rectangles
9cm × 4m; 9cm × 5cm and 4m × 5cm
We know 1m = 100cm, therefore 4m = 400cm
The formula of an area of a rectangle l × w:
A = l · w
Substitute:
A₁ = 9cm · 4m = 9cm · 400cm = 3600cm²
A₂ = 9cm · 5cm = 45cm²
A₃ = 4m · 5cm = 400cm · 5cm = 2000cm²
Calculate the surface area:
SA = A₁ + A₂ + A₃
SA = 3600cm² + 45cm² + 2000cm² = 5645cm²
Answer:
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