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77julia77 [94]
2 years ago
11

It takes Shawn 4 more hours to stain a deck than Michelle. Together it takes them 4.8 hours to complete the work. How long would

it take Shawn to stain the deck by​ himself?
Mathematics
1 answer:
andrew-mc [135]2 years ago
6 0

Answer:

4.4 hours

Step-by-step explanation:

It would take Shawn 4.4 hours, as this would give a time of .4 hours to Michelle, totaling 4.8 hours

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Solve (2^2x+1)-9(2^x)+4=0​
BartSMP [9]
  • Answer:

<em> x₁ = - 1</em>

<em> x₂ = 2</em>

  • Step-by-step explanation:

<em>2²ˣ⁺¹ - 9ₓ2ˣ + 4 = 0</em>

<em>2²ˣₓ2 - 9ₓ2ˣ + 4 = 0</em>

<em>2ˣ = n</em>

<em>2n² - 9n + 4 = 0</em>

<em>2n² - n - 8n + 4 = 0</em>

<em>n(2n - 1) - 4(2n - 1) = 0</em>

<em>(2n - 1)(n -4) = 0</em>

<em>2n - 1 = 0 => n₁ = 1/2</em>

<em>n - 4 = 0 => n₂ = 4</em>

<em />

<em>2ˣ = 1/2 => 2ˣ = 2⁻¹ => x₁ = - 1</em>

<em>2ˣ = 4 => 2ˣ = 2² => x₂ = 2</em>

8 0
4 years ago
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What is the distance from Jto K?
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Answer:

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What is the ratio of chickens to cows<br><br> 12:18
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Step-by-step explanation:

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3 years ago
Find the area of the rhombus . Each indicated distance is half the length of its respective diagonal.
lukranit [14]

Given:

The length of diagonals of a rhombus are 12 ft and 5 ft.

To find:

The area of the rhombus

Solution:

Area of a rhombus is:

Area=\dfrac{d_1d_2}{2}

Where, d_1,d_2 are two diagonals of the rhombus.

It is given that the length of diagonals of the rhombus are 12 ft and 5 ft.

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Area=\dfrac{12\times 5}{2}

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Therefore, the area of the rhombus is 30 square ft.

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