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Irina-Kira [14]
3 years ago
9

Subtract the two expressions. 2b + 4 from -8b - 12

Mathematics
2 answers:
Sedbober [7]3 years ago
4 0
(2b+4)-(-8b-12) = 10b - 8
Artyom0805 [142]3 years ago
3 0
<span>=<span><span><span><span>2b</span>+4</span>+<span>8b</span></span>+12</span></span>Combine Like Terms:<span>=<span><span><span><span>2b</span>+4</span>+<span>8b</span></span>+12</span></span><span>=<span><span>(<span><span>2b</span>+<span>8b</span></span>)</span>+<span>(<span>4+12</span>)</span></span></span><span>=<span><span>10b</span>+16</span></span>Answer:<span>=<span><span>10b</span>+16</span></span>
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What whole number dimensions would allow the students to maximize the volume while keeping the surface area at most 160 square f
ycow [4]

Answer:

The whole number dimension that would allow the student to maximize the volume while keeping the surface area at most 160 square is 6 ft

Step-by-step explanation:

Here we are required find the size of the sides of a dunk tank (cube with open top) such that the surface area is ≤ 160 ft²

For maximum volume, the side length, s of the cube must all be equal ;

Therefore area of one side = s²

Number of sides in a cube with top open = 5 sides

Area of surface = 5 × s² = 180

Therefore s² = 180/5 = 36

s² = 36

s = √36 = 6 ft

Therefore, the whole number dimension that would allow the student to maximize the volume while keeping the surface area at most 160 square = 6 ft.

6 0
2 years ago
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Step-by-step explanation:

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2 years ago
What is the Y-intercept of (y-3)=1/3(x+4)
Debora [2.8K]

Answer: 0,13/3

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3 years ago
5. How long is the diagona of a 12 ft-by-16 ft rectangular garden?
kupik [55]

Answer:

The correct answer is option D, 20ft

Step-by-step explanation:

After drawing the picture below, you can just use pythagorean theorem to solve for the diagonal, or the hypotenuse in this case;

(Length)² + (Width)² = (Diagonal)²

(16)² + (12)² = (Diagonal)²

256 + 144 = (Diagonal)²

400 = (Diagonal)²

\sqrt{400} = \sqrt{Diagonal^{2} }

<em>20 = Diagonal</em>

<em>Hope this helps!</em>

7 0
2 years ago
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3 years ago
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