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Ket [755]
3 years ago
10

Priya bought x grams of flour. Clare bought 38 more than that. Select all equations that represent the relationship between the

amount of flour that Priya bought, x, and the amount of flour that Clare bought, y, by matching each equation to "correct" or "incorrect".
Mathematics
1 answer:
Natali [406]3 years ago
3 0
It’s 15 to the fourth power hope this was helpful
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find two positive real numbers such that they sum to 108 and the product of the first times the square of the second is a maximu
topjm [15]

The two positive numbers are 36 and 72 which gives a sum equal to 108 and the product of 36 and the square of 72 is a maximum.

Any integer greater than zero is considered a positive number. A positive number can either be written as a number or with the "+" symbol in front of it.

Let us consider the two positive real numbers as x and y. Then, their sum is written as,

x+y=108

Then, y=108-x

And the product is written as,

P=xy²

Substitute value of y in the above equation, we get,

\begin{aligned}P&=x(108-x)^2\\&=x(11664-216x+x^2)\\&=11664x-216x^2+x^3\\&=x^3-216x^2+11664x\end{aligned}

Now, differentiate P with respect to x, and we get,

\begin{aligned}\frac{dP}{dx}&=3x^2-432x+11664\\&=x^2-144x+3888\end{aligned}

Solving the above equation to zero, we get,

\begin{aligned}x^2-144x+3888&=0\\x^2-36x-108x+3888&=0\\x(x-36)-108(x-36)&=0\\(x-108)(x-36)&=0\\x&=\text{108 or 36}\end{aligned}

Substitute values of x in y=108-x, to get values of y.

If we substitute x=108, we get the y value as zero which doesn't give the required solution.

But, if we substitute x=36, we get,

\begin{aligned}y&=108-36\\y&=72\end{aligned}

Thus, the two positive numbers are 36 and 72.

To know more about positive numbers:

brainly.com/question/1635103

#SPJ4

4 0
10 months ago
What is the least common multiple of 4 and 10? 2 4 20 40​
pav-90 [236]

Answer:

its 20 :)

Step-by-step explanation:

lol

6 0
2 years ago
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Subject : Maths<br> Level : High school<br> Topic : Surds<br> Points : 72
Mila [183]

Answer:

  • a = 5

Step-by-step explanation:

<u>Simplify:</u>

  • √5(√8 + √18) =
  • √5*8 + √5*18 =
  • √40 + √90 =
  • √4*10 + √9*10 =
  • 2√10 + 3√10 =
  • (2 + 3)√10 =
  • 5√10

<u>The value of a:</u>

  • a√10 = 5√10
  • a = 5
6 0
3 years ago
Please Answer, No links! reporting right away!.. giving brainliest and more points!
loris [4]

Answer:

A) 154x89 _s2

s

Step-by-step explanation:

A) 154x89 _s2

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4 0
2 years ago
What is another way to write the expression t×(14-5)
Lady bird [3.3K]
T(14 - 5) = 14t - 5t or t(14) - t(5) 
7 0
3 years ago
Read 2 more answers
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