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omeli [17]
3 years ago
7

The area of a rectangle is 42 square feet. If the length and width are whole numbers, what are the least and greatest possible p

erimeters?
Mathematics
1 answer:
stepan [7]3 years ago
7 0
A = L * W
P = 2(L + W)

lets get all the factors of 42.....
1 * 42....P = 86
2 * 21...P = 46
3 * 14...P = 34
6 * 7....P = 26

least possible perimeter = 26
greatest possible perimeter = 86

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Yesssssss according to my sister who studies medicine lol
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3 years ago
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F(x) = 3x^3 + 3x^2 - 4x - 4
dezoksy [38]

Answer:

x = − 1 ,   2 √ 3 /3 , and − 2 √ 3 /3

Step-by-step explanation:

3x^3+3x^2-4x-4=0

By factoring, I can get simpler equations to get the roots.

x + 1 = 0, or x = -1

√ 3 x + 2 = 0, or − 2 √ 3 /3

√ 3 x - 2 = 0, or 2 √ 3 /3

6 0
3 years ago
Which equation represents a line parallel to the line shown on the graph? On a coordinate plane, a line goes through (0, 8) and
dezoksy [38]

Answer:

  • B) y = negative 4 x + three

Step-by-step explanation:

<u>Find the slope of the line that goes through (0, 8) and (2, 0):</u>

  • m = (y₂ - y₁)/(x₂ - x₁)
  • m = (0 - 8) / (2 - 0) = -8/2 = -4

Parallel lines have equal slopes.

<u>Looking at the choices we see only one of them has the slope of  -4:</u>

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5 0
2 years ago
A firm buys 12 file cabinets at $140 each, with payment in full due in 90 days. How much must the firm deposit now to have enoug
anyanavicka [17]

Answer:

firm deposit  is $1667.50

Step-by-step explanation:

given data

buys 12 file = $140

time = 90 days

interest = 3%

solution

we get here return on money over 90 day period  is  

we know Return on 360 days = 3%

return on money over 90 day = 3% ÷ 4  = 0.75%

we consider here required amount = x

so

$140 × 12 = x (1+0.0075)

x  =  \frac{1680}{1+0.0075}

x = 1667.50

so firm deposit  is $1667.50

3 0
3 years ago
Which operation is used for the equation down below
mario62 [17]

Answer:

B

Step-by-step explanation:

2x+8=9

you want to isolate the variable so you subract 8 from both sides

2x=1

now you want x by itself so you divide by 2 on both sides

x=1/2 or x=0.5

Hope this helped :)

3 0
4 years ago
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