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marshall27 [118]
3 years ago
8

one each day dariene write in her personal diary and records whether the sun isshining or not when she looked back tough her dia

ry she found that over a period 600 days the sun was shining 60% of the time she kept recording for another 200 days and then found that the total number of sunny days dropped to 50% how many of the final 200 days were sunny days
Mathematics
2 answers:
Svetradugi [14.3K]3 years ago
7 0
Im guessing ten or some sort of factor of ten
Katyanochek1 [597]3 years ago
6 0
The answer is 40 days I think
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Зp - р<br> Please lend me a helping hand
Troyanec [42]

Answer:

Step-by-step explanation:

If scientific notaion it would be 3p^2 if not it would be 3p times 2

3 0
2 years ago
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The length of a rectangle is increasing at a rate of 4 meters per day and the width is increasing at a rate of 1 meter per day.
puteri [66]

Answer:

\displaystyle \frac{dA}{dt} = 102 \ m^2/day

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Geometry</u>

Area of a Rectangle: A = lw

  • l is length
  • w is width

<u>Calculus</u>

Derivatives

Derivative Notation

Implicit Differentiation

Differentiation with respect to time

Derivative Rule [Product Rule]:                                                                              \displaystyle \frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)

Step-by-step explanation:

<u>Step 1: Define</u>

<u />\displaystyle l = 10 \ meters<u />

<u />\displaystyle \frac{dl}{dt} = 4 \ m/day<u />

<u />\displaystyle w = 23 \ meters<u />

<u />\displaystyle \frac{dw}{dt} = 1 \ m/day<u />

<u />

<u>Step 2: Differentiate</u>

  1. [Area of Rectangle] Product Rule:                                                                 \displaystyle \frac{dA}{dt} = l\frac{dw}{dt} + w\frac{dl}{dt}

<u>Step 3: Solve</u>

  1. [Rate] Substitute in variables [Derivative]:                                                    \displaystyle \frac{dA}{dt} = (10 \ m)(1 \ m/day) + (23 \ m)(4 \ m/day)
  2. [Rate] Multiply:                                                                                                \displaystyle \frac{dA}{dt} = 10 \ m^2/day + 92 \ m^2/day
  3. [Rate] Add:                                                                                                      \displaystyle \frac{dA}{dt} = 102 \ m^2/day

Topic: AP Calculus AB/BC (Calculus I/II)

Unit: Implicit Differentiation

Book: College Calculus 10e

8 0
3 years ago
I'm not sure about 38 - 53 please help! :)
Maru [420]
38. 6900 grams
39. 19600 grams
40.
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610 grams
43. 970 grams
44.
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48.
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49. 4700 grams
50. 150 grams
51. 15 grams
52. 15200 grams
53. 460

I'm sorry if these are wrong but I hope this could help.
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3 years ago
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Help please!!!!! this is a test!!!!
Aleksandr [31]

Answer:

16

Step-by-step explanation:

Given

C=2r and r=8

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3 years ago
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ASAP pls help me giving brainliest
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Answer:

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