The width and length of the bulletin board are whole numbers what is the width of the bulletin board if the length is 4 feet

Mathematics

1 answer:

sergeinik [125]2 years ago

6 0

If the length is 4 feet, the width is 8 or something like that I honestly don’t know

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So I took a test from my teachers desk and took photos of the test questions. I am indeed cheating but I just want to know the a

romanna [79]

Answer:

THE CORRECT OPTION IS A) Δ ABC $\sim$ Δ BDC $\sim$ Δ ADB

Step-by-step explanation:

The first option is in correct order of triangle ,we can easily the their sides are proportionate . And having eqal angles.

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3 years ago

Will the solution of an equation such as x-3=9 be a variable on a number? Explain

KengaRu [80]

X= 12
Add three on both sides to get rid of it
9+3 and -3 + 3 the three is negative because you drop the minus sign down
This cancels out the three and 9+3 is 12 so X=12

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2 years ago

What is the completely factored form of f(x)=x3+5x2+4x−6?

Gre4nikov [31]

$f(x)=x^3+5x^2+4x-6$
$f(-3)=(-3)^3+5(-3)^2+4(-3)-6=0\implies x+3\text{ is a factor of }f(x)$

Synthetic division yields

-3 | 1   5   4   -6
.    |      -3 -6    6
- - - - - - - - - - - - -
.    | 1   2 -2    0

which translates to

$\dfrac{x^3+5x^2+4x-6}{x+3}=x^2+2x-2$

with remainder 0. Now by the quadratic formula,

$x^2+2x-2=0\implies x=\dfrac{-2\pm\sqrt{2^2-4(1)(-2)}}2=-1\pm\sqrt3$

and so

$f(x)=x^3+5x^2+4x-6=(x+3)(x-(-1+\sqrt3))(x-(-1-\sqrt3))$

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2 years ago

140 degrees decreased by 65%

BaLLatris [955]

Hey there!
Here are the steps involved:

1.Change 65% into a decimal. Move the decimal two places to the left and you get 0.65.

2. Multiply 0.65 by 50.
140 x 0.65 = 91.

3. Since you are decreasing 140 by 65%, subtract 140 by 91.
140-91= 49

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3 years ago

What value of n makes the equation true?

Anastasy [175]

Answer:

Step-by-step explanation:

$(4^{3} /4)^{3} = 4^{n} \\(4^{2})^{3} = 4^{n} \\4^{6} = 4^{n} \\n=6$

5 0

2 years ago