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3 years ago

2. If x=2, y=3 findvalue of x²-5y+2

Mathematics

2 answers:

kozerog [31]3 years ago

8 0

Answer:

-9

Step-by-step explanation:

x² - 5y + 2 when x = 2 and y = 3

→ Substitute in x = 2 and y = 3

x² - 5y + 2 ⇔ (2)² - (5 × 3) + 2

→ Simplify

(2)² - (5 × 3) + 2 ⇔ (4) - (15) + 2

→ Simplify further

(4) - (15) + 2 ⇔ 4 - 15 + 2

→ Simplify further

4 - 15 + 2 ⇔ -11 + 2

→ Work out -11 + 2

-11 + 2 = -9

Damm [24]3 years ago

5 0

Answer:

-9

Step-by-step explanation:

Substitute the give values into the correct place in the equation.

Since x=2, y=3,

Place "2" in the x of the equation, and "3" into the y of the equation.

x²-5y+2

= 2² - 5(3) + 2

= 4 - 15 + 2

= -9

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2 years ago

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rjkz [21]

Answer:

\mu = 14.5\\

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Step-by-step explanation:

given that a statistician uses Chebyshev's Theorem to estimate that at least 15 % of a population lies between the values 9 and 20.

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$P(9$

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Next what we find is

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Thus from the given information we find that

$\mu = 14.5\\\sigma = 5.071\\k = 1.084$

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Step-by-step explanation:

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3 years ago

2. If x=2, y=3 findvalue of x²-5y+2​

2. If x=2, y=3 findvalue of x²-5y+2