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2 years ago

(-5) X ? =-15 find the missing number

Mathematics

2 answers:

likoan [24]2 years ago

5 0

Answer:

Step-by-step explanation:

(-5) × ? = (-15)

? = (-15)/(-5)

? = 3

VMariaS [17]2 years ago

4 0

<h3>Answer:</h3>

<h3>Step-by-step explanation:</h3>

(-5) × ? = -15

? = -15 ÷ (-5)

? = 15 ÷ 5

? = (3 × 3 × 3) <= 3 Factor

? = 3

<h3>Conclusion:</h3>

Value of ? is 3.

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Step-by-step explanation:

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3 years ago

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3 years ago

The function f(x)=-(x-3)^2 +9 can be used to represent the area of a rectangle with the perimeter of 12 units, as a function of

Ivenika [448]

Maximum area of the rectangle is $9cm^{2}$

<u>Explanation:</u>

<u></u>

Considering the dimensions to be in cm

$f(x) = -(x-3)^{2} +9\\f(x) = -(x^{2} +9 - 6x)+9\\f(x) = -x^{2} +6x\\f'(x) = -2x+6\\-2x+6 = 0\\2x=6\\x=3cm\\\\$

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2 years ago