Answer:
≈ 35.1 ft
Step-by-step explanation:
The model is a right triangle with ladder being the hypotenuse and the angle between the ground and the ladder is 70°
Using the cosine ratio, with l being the length of the ladder.
cos70° = = ( multiply both sides by l )
l × cos70° = 12 ( divide both sides by cos70° )
l = ≈ 35.1 ( to the nearest tenth )
The ladder is approx 35.1 ft long
Answer: 1.5
Step-by-step explanation: Given:
A=1/10×5 + 11²
B= 5 - 11²
If c = A + B
c = ( 1/10×5 +11²) + ( 5 - 11² )
= ( 5/10 + 121) + ( 5 - 121)
= ( 121.5) + ( -120)
= 121.5 - 120
= 1.5
Answer: Interval Notation (0, 6)
Graph: 0 o--------------o 6
<u>Step-by-step explanation:</u>
So, the solution is: every value between 0 and 6
Answer:
Wide and length are: 3x + 10 and 3x - 10
Step-by-step explanation:
9x²-100 = (3x + 10) (3x - 10)
2x + 1 = 2A + 3(x + A)
You want x=2 to be a solution.
So the equation will be a true statement when
2(2) + 1 = 2A + 3(2 + A)
4 + 1 = 2A + 6 + 3A
Combine like terms: 5 = 5A + 6
Subtract 6 from each side: -1 = 5A
Divide each side by 5: <em> -0.2 = A</em>