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ExtremeBDS [4]
3 years ago
10

How long is a dinner fork in inches.

Mathematics
2 answers:
Juliette [100K]3 years ago
4 0
About 4 inches long

Hope this helps
Alja [10]3 years ago
4 0
4 in but 4 to 5 if it is dinner but it depends  if its baby of kid or adult  

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What is 2.1 × ten exponent nine in scientific notation?
Sloan [31]
Looks like all you have to do is to translate this expression into symbols:

2.1*10^9
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4 years ago
Given ABC find the values of x and y. In your final answer, include all of your calculations.
kow [346]

So with this, we will be using proportions. To solve for x, our proportion will be \frac{x}{6} =\frac{6}{x-9}


Firstly, cross-multiply: x^2-9x=36


Next, subtract 36 on both sides: x^2-9x-36=0


Next, replace -9x with 3x-12x x^2+3x-12x-36=0


Next, factor x^2+3x and -12x-36 separately: x(x+3)-12(x+3)=0 . After, rewrite it as (x-12)(x+3)=0


Next, solve for x separately in the two parentheses:

x-12=0\\ x=12

x+3=0\\ x=-3


Since we can't have a negative length, x = 12.



To solve for y, our proportion will be \frac{y}{9} =\frac{12}{y}


Firstly, cross-multiply: y^2=108


Next, just square root each side, and your answer will be (rounded to hundredths) y=10.39



In short, x = 12 and y = 10.39.

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3 years ago
A model airplane flies 22 feet in seconds what is the airplane speed in miles per hour
Kruka [31]
15 miles per hour is the correct answer. Did I help?
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myrzilka [38]

Answer:

Step-by-step explanation:

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2. You then square both sides of the equation, which will give you x-6=16

3. Since the equation is now one-step, you then do GEMDAS and you will get x=22

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nasty-shy [4]

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Step-by-step explanation:

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I think that what it means

6 0
4 years ago
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