Units used to describe volume are cubic
Answer
Find out the how high up the wall does the ladder reach .
To proof
let us assume that the height of the wall be x .
As given
A 25-foot long ladder is propped against a wall at an angle of 18° .
as shown in the diagram given below
By using the trignometric identity
![cos\theta = \frac{Base}{Hypotenuse}](https://tex.z-dn.net/?f=cos%5Ctheta%20%3D%20%5Cfrac%7BBase%7D%7BHypotenuse%7D)
now
Base = wall height = x
Hypotenuse = 25 foot
Put in the trignometric identity
![cos18^{\circ} = \frac{x}{25}](https://tex.z-dn.net/?f=cos18%5E%7B%5Ccirc%7D%20%3D%20%5Cfrac%7Bx%7D%7B25%7D)
![cos18^{\circ} = \bar{0.9510565162}](https://tex.z-dn.net/?f=cos18%5E%7B%5Ccirc%7D%20%3D%20%5Cbar%7B0.9510565162%7D)
x = 23.8 foot ( approx)
Therefore the height of the ladder be 23.8 foot ( approx) .
Answer:
3x + 70 − 7x ≥ 18
Step 1: Simplify both sides of the inequality.
−4x + 70 ≥ 18
Step 2: Subtract 70 from both sides.
−4x + 70 − 70 ≥ 18 − 70
−4x ≥ −52
Step 3: Divide both sides by -4.
−4x
/−4 ≥ −52
/−4
x ≤ 13
Answer:
Step-by-step explaSimplify the equation by finding the square root of both sides. √x2=x √0=0. x=0. Check: 02=0.
Answer:
c = 10 feet
Step-by-step explanation:
Use the Pythagorean theorem: a^2 + b^2 = c^2
<u>Step 1: Plug in the information</u>
(6)^2 + (8)^2 = c^2
36 + 64 = c^2
100 = c^2
sqrt(100) = sqrt(c^2)
<em>10 = c</em>
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Answer: c = 10 feet