Answer:
B
Step-by-step explanation:
find the the surface area of one corner
<em>a. 2√21 units</em>
- <em>Step-by-step explanation:</em>
<em>Hi there ! </em>
<u><em>Area formula</em></u>
<em>A = π·r²</em>
<em>84π = πr²</em>
<em>r² = 84π/π</em>
<em>r² = 84</em>
<em>r² = 2²×3×7</em>
<em>r = √2²×3×7</em>
<em>r = 2√3×7</em>
<em>r = 2√21</em>
<em>Good luck !</em>
Answer: The area of the triangle is: " 30 ft.² " .
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Explanation:
→ A = " 30 ft.² " .
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Area of a triangle, "A" = 1/2 * (base length) * (perpendicular height) ;
that is:
" A = (1/2) * b * h " ;
→ A = (1/2) * (6 ft) * (10 ft) ; ← Plug in the given values from the "diagram" ;
= (3 ft) * (10 ft) ;
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→ A = " 30 ft.² " .
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Answer:
x = -2
Step-by-step explanation:
Add 0.75x to both sides of the equation.
-0.75x -2 = 0.25x . . . . . given
-0.75x +0.75x -2 = 0.25x +0.75x
-2 = 1.00x . . . . simplify
x = -2
Answer:
38.45
Step-by-step explanation:
