3 years ago

Solve right tringle if BC = 83 and A = 40

Mathematics

1 answer:

Nuetrik [128]3 years ago

4 0

Answer:

Step-by-step explanation:

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A rectangle with dimensions of 3 units by 7 units is enlarged by a scale factor of 1.1. By what percent does it’s area increase?

Ratling [72]

Answer:

$21\%$

Step-by-step explanation:

Original dimensions of the rectangle

$l=7\ \text{units}$

$w=3\ \text{units}$

Area of the rectangle

$A=7\times 3=21\ \text{units}^2$

Scale factor = 1.1

New dimensions

$l'=7\times 1.1=7.7\ \text{units}$

$w'=3\times 1.1=3.3\ \text{units}$

The new area of the rectangle

$A'=7.7\times 3.3=25.41\ \text{units}^2$

Percentage change is given by

$\dfrac{A'-A}{A}\times 100\\ =\dfrac{25.41-21}{21}\times 100=21\%$

The percentage by which the area of the rectangle increases is $21\%$ .

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3 years ago

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lora16 [44]

28.86 is the answer hopes this helped you

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4 years ago

What equation does this model show?

Fiesta28 [93]

Answer:

14x-12=9x-25

Step-by-step explanation:

Since the balance is equaled, the equation would read to be 14x-12=9x-25.

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Answer:

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