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Elena-2011 [213]
3 years ago
13

What is the value of x? O 2 units O 3 units O 5 units 08 units

Mathematics
1 answer:
Anna71 [15]3 years ago
4 0

Answer:

The value of x is 5 units ⇒ C

Step-by-step explanation:

In the given figure

∵ Δ ABC is a right triangle at vertex B

∵ AC is its hypotenuse

∵ BD ⊥ AC

∴ (BD)² = AD × DC

∵ BD = 10 units

∵ AD = x units

∵ DC = 4x units

→ Substitute them in the rule above

∴ (10)² = x × 4x

∴ 100 = 4x²

→ Divide both sides by 4

∵ \frac{100}{4} = \frac{4x^{2}}{4}

∴ 25 = x²

→ Take √  for both sides

∴ 5 = x

∴ The value of x is 5 units

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Answer:

$20.40

Step-by-step explanation:

First of all we find the value of 10%, so we do 24 ÷ 10 which equals to 2.4, then we find the halved value of 2.4, so we do 2.4 ÷ 2 which equals to 1.2. Then we add 2.4 and 1.2 together, which then gives us 3.6 as the number. We then subtract 3.6 from 24 which gives us 20.4, but we need in money terms so we change it to $20.40. Hope this helps.

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Step-by-step explanation:

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A pizza has a diameter of 12 inches. Each piece has a central angle of radians. What is
Firlakuza [10]

Answer:

The area of one slice of pizza is 18 in²

Step-by-step explanation:

First we have to know that the 360 ​​° representing the circle expressed in radians are expressed as 2π

Now we must calculate the area of ​​the circle

a = π * r²

a = π * (12in)²

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Now that we have the area of ​​the circumference we multiply it by (π/4) / (2π)

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3 years ago
A square rug covers 79 square feet of floor. What is the approximate length of one side of the rug? (Approximate to the nearest
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A = 79

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