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zheka24 [161]
3 years ago
13

5. If the dimensions of a rectangle are doubled, which of the following best describes an effect on the rectangle?​

Mathematics
1 answer:
Bond [772]3 years ago
7 0

Answer:

Since length and width are perpendicular, Doubling either one will double the area. So Doubling both will quadruple the area. 2x2 = 4.

This idea works if the dimensions doubled are those that are used to compute area. Like the base and height of a triangle.

More generally, in a polygon, if all the sides are doubled, the area is multiplied by 4. In a circle, Doubling the radius will quadruple the area.

In 3 dimensions, Doubling one dimension will double the VOLUME. Doubling two perpendicular dimensions will quadruple the volume and Doubling 3 perpendicular dimensions will multiply the volume by 2x2x2 or 8.

Step-by-step explanation:

plz make me brainy least

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What value of x makes this proportion true?
postnew [5]
The answer would be C. 8.
I would cross multiple the fractions (3*40) and (15 * x)
That would equal 15x= 120
Divide both sides by 15 and you get 8
Or
You could say: what number times 3 gives me 15? The answer would be 5 and then you would divide 40 by 5 to get 8.

Hope the explanation helps :)
6 0
3 years ago
Read 2 more answers
HELP ME
zhuklara [117]

Answer:

$127.60

Step-by-step explanation:

If Lisa bought 30 shares of stock at $54.02 per share, total cost price will be:

30×$54.02

= $1620.6

If she then sold her shares at $58.19 per share, her total selling price will be:

30×$58.19

= $1745.7

Profit = selling price - cost price

Profit = $1745.7-$1620.6

Profit = $125.1

If her broker charges a 2% commission for all transactions, her total charge will be:

2% of $125.1

= $2.50

Her net gain = profit + broker's charge

= $125.1+$2.50

= $127.60

7 0
3 years ago
How are integers and their opposites related? give an example with numbers.
alukav5142 [94]

Answer:

Integers are the set of whole numbers and their opposites. Whole numbers greater than zero are called positive integers. Whole numbers less than zero are called negative integers. The integer zero is neither positive nor negative, and has no sign. Two integers are opposites if they are each the same distance away from zero, but on opposite sides of the number line. Positive integers can be written with or without a sign. an example with numbers is 17positive and 17 negative both are 17 (clicks/jumps/etcetera) away from 0. There is no 0 positive or negative.

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mezya [45]

Answer:

-11

Step-by-step explanation:

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tatiyna

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Answer:

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Step-by-step explanation:

Reflection over the x-axis changes the sign of the y-coordinate. Points that were above the axis are reflected to be the same distance below the axis.

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