3 years ago

I'm working on a review and my class ended....help?

Mathematics

1 answer:

White raven [17]3 years ago

6 0

1- 2.5 seconds
2- 1.25 seconds
3- 3.75 seconds

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Which of the following represents a function?

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What are the functions?

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You plant a rectangular rose garden along the side of your garage. You enclose 3 sides of the garden with 40 feet of fencing. Th

solmaris [256]

Let's assume

length of rectangle =L

width of rectangle =W

You enclose 3 sides of the garden with 40 feet of fencing

so, we get

$L+2W=40$

now, we can solve for L

$L=40-2W$

we know that

area of rectangle is

$A=L*W$

$100=L*W$

now, we can plug

$100=(40-2W)*W$

now, we can solve for W

$-2W^2+40W-100=0$

we can use quadratic formula

$W=\frac{-40+\sqrt{40^2-4\left(-2\right)\left(-100\right)}}{2\left(-2\right)}$

$W=\frac{-40-\sqrt{40^2-4\left(-2\right)\left(-100\right)}}{2\left(-2\right)}$

we can take anyone value ..because both are giving positive value

first dimensions:

$W=2.929$

now, we can find L

$L=40-2*2.929$

$L=34.142$

so, length is 34.142feet

width is 2.929 feet

Second dimensions:

$W=17.071$

now, we can find L

$L=40-2*17.071$

$L=5.858$

so, length is 5.858feet

width is 17.071 feet

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3 years ago

Blababa [14]

Answer:

Step-by-step explanation:

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3 years ago

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Mars2501 [29]

Answer:

R.I.P Gl man im lost...

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3 years ago

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Paladinen [302]

The answer is the last one

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3 years ago

I'm working on a review and my class ended....help?​

I'm working on a review and my class ended....help?