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Alekssandra [29.7K]
3 years ago
7

What are the possible solutions to this prblem? n squared = 43

Mathematics
2 answers:
Nuetrik [128]3 years ago
7 0

all the answers would be irrational.

DIA [1.3K]3 years ago
4 0

Possible answers can be square root of 43 and square root of -43

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Please help me !!!!!!!!!
lidiya [134]

Answer:

f(-2) = 0

f(1) = 12

f(2) = 5

Step-by-step explanation:

f(-2) will lie in the function f(x) =x^2 - 4

\therefore f( - 2) =  {( - 2)}^{2}  - 4 = 4 - 4 = 0

f(1) will lie in the function f(x) =2x^2 +10

\therefore f(1) = 2 {(1)}^{2}  + 10 = 2 + 10 = 12

f(2) will lie in the function f(x) =5

\therefore f(2) = 5

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Za and Zb are complementary angles. Za measures 78º.<br> What is the measure of Zb?
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Step-by-step explanation:

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Answer:

Hence the width, length is 20 cm and height is 10 cm

Step-by-step explanation:

Since the box has a square base, let length = width = x. Also, let the height = y, therefore:

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4000 = x * x * y

4000 = x²y

y=4000/x²

The surface area (SA) = area of the base + sum of the area of each side

SA = x² + xy + xy + xy + xy

SA = x² + 4xy

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SA = x² + 4x(4000/x²)

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Taking the derivative:

SA' = 2x - 16000/x²

making SA' = 0:

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2x³ = 16000

x³ = 8000

x = 20 cm

y = 4000 / x² = 4000 / 20² = 10 cm

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