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Anettt [7]
2 years ago
6

A rectangular garden of area 75 ftö is bounded on three sides by a wall costing

Mathematics
1 answer:
ioda2 years ago
8 0
A = L * W = 75 so L = 75/W Cost = 4W + 8(2L + W) = 4W + 16L + 8W = 12W + 16L = 12W + 1200/W C' = (12(W^2 - 100))/(W^2) = (12(W-10)(W+10))/(W^2) so W = 10 then L = 7.5
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Elaine mellon earns $17.80 an hour as an electronic billing specialist for a legal clinic. she must work ____ hours a week, to e
just olya [345]

$17.80 in 1 hr

$1 in 1/17.80 hr

$675.00 in 675.00/17.80 hr

37.9 hours

Which is 38 hours after rounding it.

6 0
3 years ago
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HELP PLEASE BRAINIEST IF CORRECT!!!!<br> Function or not function.
Tom [10]

Answer:

It is a function

Step-by-step explanation:

The line doesn't pass through the graph twice

5 0
3 years ago
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PLEASE HELP!<br><br> Thank you if you helped! <br> Will give Brainliest
pogonyaev

Rent all

55.5/3 = 18.5

74/4 = 18.5

it costs 18.5 per day

1.     y = 18.5 x      where y =cost and x=days


A-1

10.99 per 1/2 day

10.99 * 2 =21.98 per day

2.  it costs 21.98 per day from A-1


Rentall is the better deal because it is only 18.50 per day versus 21.98 per day




5 0
3 years ago
What is the height of a solid box that has a mass of 438 g, a destiny of 2.17 g/cm, a length of 40 cm, and a width of 20 cm.​
lapo4ka [179]
  • <em>Answer:</em>

<em>h ≈ 0.25 cm</em>

  • <em>Step-by-step explanation:</em>

<em>Hi there !</em>

  • <u><em>density formula</em></u>

<em>d = m/V</em>

<em>V = l×w×h</em>

<em>replace</em>

<em>2.17 = 438/(40×20)×h</em>

<em>2.17 = 438/800×h</em>

<em>2.17×800×h = 438</em>

<em>1736h = 438</em>

<em>h = 438/1736</em>

<em>h ≈ 0,25 cm</em>

<em>Good luck !</em>

<em />

4 0
3 years ago
Question 7:
Mars2501 [29]

Answer:Graph A.

Step-by-step explanation:

Graph A.

Step-by-step explanation:

We will try to understand the graph plotted for the change in temperature for whole day.

In the morning, temperature starts out around 50°F. As the day goes on, the temperature rises first slowly- Slope of the first line will be less.

Then temperature rises more quickly - Slope of the second line will be more than first line.

It stays constant for an hour- third line will be parallel to the x-axis for one hour gap.

Then the temperature dropped down slowly - Last line of the graph will go down.

By the understanding we made for the graph we find graph A is the answer.

5 0
2 years ago
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