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Mars2501 [29]
3 years ago
7

Quiz question!! i need help fast !

Mathematics
1 answer:
mixas84 [53]3 years ago
7 0

Answer:

200-5x and 90

Step-by-step explanation:

we don't know how many weeks she spent at first so we make the equation 200-5x

and then it would be 5x22 which is 110

so 200-110=90

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How to find the correct unit of measurement? I am struggling with this. What is the difference between ft³, ft and ft²? Example:
arlik [135]
<span> </span> <span>if you want to determine the perimeter / length, use a normal measure - ft.
The area is ft^{2}
<span>and the volume</span></span> ft^{3}
4 0
3 years ago
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Please help 20 points geometry triangle questions​
slava [35]

Answer:

1. yes, SAS

2. yes, ASA

3. yes, SSA

4. yes, SAS

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7. yes, HL and ASA

8. yes, ASA

9. no

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2 years ago
You are looking at your power bill for the month, you pay 12 cents per kilowatt-hour. Your power bill came out to $74.80 how man
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5 0
2 years ago
If the farmer has 234 feet of fencing, what are the dimensions of the region which enclose the maximal area?
marissa [1.9K]

Answer: 58 ft × 58 ft  

Step-by-step explanation:

Let the length of the region = x feet

And, the width of the region = y feet

Since, the perimeter of the region = 234 feet ( Given )

⇒ 2(x+y) = 234

⇒ x+y = 117

⇒ y = 117 - x

Again the area of the region, A = xy

⇒ A(x) = x(117-x)

⇒ A(x) = 117x - x^2

By differentiating the above equation with respect to x,

⇒ A'(x) = 117 - 2x  

For maxima or minima,

A'(x) = 0

\implies 117 - 2x = 0

\implies -2x = -117

\implies x = 58.5

Again differentiating equation A'(x) with respect to x,

We get, A''(x) = -2

Hence, For x = 58.5 A''(x) = negative

⇒ For x = 58.5 feet the area A(x) is maximum,

⇒ The length of the region having maximum area = x = 58.5 feet

And, the width of the region having maximum area = y = 117-x= 117 - 58.5=58.5 feet,

⇒ The dimension of the region having the maximum area = 58.5 ft × 58.5 ft

8 0
3 years ago
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A computer technician charges $37.50 per hour plus a $70 service charge find the total charges if it takes to computer technicia
mr Goodwill [35]

Answer:

276.25

Step-by-step explanation:

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206.25+ 70 = 276.25

4 0
2 years ago
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