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2 years ago

Select the correct answer

Mathematics

2 answers:

SashulF [63]2 years ago

5 0

Answer:

21cm

Step-by-step explanation:

Area if the canvas = L²

If the length is increased by 4

A = L²

625 = L²

L = √625

L = 25cm

If the 4cm is added to the length of the canvas, the original length will be 25-4 = 21cm. hence the length of the bare canvas is 21cm

katen-ka-za [31]2 years ago

3 0

I believe the correct answer is D - 25 centimeters based on my calculations

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dolphi86 [110]

Answer:

Correct choice is B

Step-by-step explanation:

All given options represent quadratic function. Let the equation of this quadratic function be

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Then

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3. $f(2)=12=a\cdot 2^2+b\cdot 2+c\Rightarrow 12=4a+2b+2.$

Solve the system of two equations:

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Note that

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2 years ago

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Answer: First option.

Step-by-step explanation:

The complete exercise is attached.

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The Multiplication property of Equality states that:

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In this case, the equation that Jada had is the folllowing:

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Jada needed to solve for the variable "x" in order to find its value.

The correct procedure to solve for for "x" is to multiply both sides of the equation by 108. Then, you get:

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As you can notice in the picture, Jada did not multiply both sides of the equation by 108, but multiplied the left side by $-\frac{4}{9}$ <em> </em>and the right side by $-\frac{9}{4}$ .

Therefore,you can conclude that Jada should have multiplied both sides of the equation by 108.

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Given

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