3 years ago

What does similar mean

Mathematics

1 answer:

RoseWind [281]3 years ago

8 0

resembling without being identical

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Claire has a hot tube with a diameter of 7feet.She wants to purchase a cover to protect the hot tub.What is the area of the cove

Vikki [24]

Answer:

38.465 ft²

Step-by-step explanation:

the area of a circle can be calculated using the following formula:

$A=\pi *r^2$

the radius is half of the diameter:

$\frac{1}{2} *7=3.5$

$\pi *3.5^2=38.465\\\pi * 12.25 = 38.465$

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3 years ago

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

A transformation of AKLM results in AK'L'M'.

zysi [14]

Translation, Dilation

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3 years ago

What is the midpoint of the line segment with endpoints (-2, 6) and (8, -3)?

777dan777 [17]

Answer: D) (3, 1.5)

Step-by-step explanation:

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3 years ago

What is the total length of the tadpoles that are 1/8 inch and 1/4 inch long?

m_a_m_a [10]

Answer: 7/8 inches

Step-by-step explanation: There are 3 x's for 1/8 so that is 3/8. There are 2 x's for 1/4 which is 2/4, but you need to have the same denominator so you do 2 times the numerator and denimator which is 4/8. 3/8 + 4/8 = 7/8

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3 years ago

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