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4 years ago

Describe one method you can use to write a fraction as a decimal.

Mathematics

2 answers:

Stolb23 [73]4 years ago

8 0

Divide the numerator by the <span>denominator.</span>

arsen [322]4 years ago

3 0

If you have a whole dollar then split it up into quarters. 4 quarters is 1 dollar. so take one quarter (25¢) So decimal from would be .25
faction form would be 1/4. beacuse if you multiple .25 × 4 it would be 1. and multiple
1/4 × 4/1 it would be 4/4 which equal 1

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3 years ago

Is 5 equal to -5 in math

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3 years ago

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What is the answer to 1-5

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1. EFG

2. F

3. FA and FB Take a moment to look at this one. The two rays are pointing in opposite directions. They are 180o apart. They share a common point at F.

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4 years ago

A piece of wire 25 m long is cut into two pieces. One piece is bent into a square and the other is bent into an equilateral tria

fomenos

Answer:

Wire used for square is 7.55 m.

Step-by-step explanation:

Let the length of wire cut for square be 'x'.

Given:

Total length of the wire = 25 m

Length of wire for square = 'x'

Length of wire for equilateral triangle = $25-x$

Now, area of square (a) = $x^2$

Area of equilateral triangle (e) is given as:

$e=\frac{\sqrt3}{4}(25-x)^2$

Now, total area (A) is given as:

$A=a+e\\\\A=x^2+\frac{\sqrt3}{4}(25-x)^2$

Now, in order to maximize 'A', the derivative of area with respect to 'x' must be 0.

∴ $\frac{dA}{dx}=0$

$\frac{d}{dx}(x^2+\frac{\sqrt3}{4}(25-x)^2)=0\\\\2x-\frac{\sqrt3}{2}(25-x)=0\\\\2x+\frac{x\sqrt3}{2}=\frac{25\sqrt3}{2}\\\\x(2+\frac{\sqrt3}{2})=\frac{25\sqrt3}{2}\\\\x(4+\sqrt3)=25\sqrt3\\\\x=\frac{25\sqrt3}{4+\sqrt3}=7.55\ m$

Therefore, the length of the wire that is cut for square should be 7.55 m for maximum area.

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3 years ago

Stacy is trying to solve the equation 2x - 5 = 10x + 7 . Her first step results in the equation 2x = 15x + 12. Describe her mist

Lelechka [254]

Mistake: you can't add 5 to 10x.
solution: -1.5

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3 years ago

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