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3 years ago

Point C is located at (2,8). If it is reflected across the x axis, where will C be located?

Mathematics

2 answers:

salantis [7]3 years ago

7 0

Answer:

(2, -8)

Step-by-step explanation:

The answer is (2, -8) because when you reflect a point across the x-axis, the x-coordinate always remains the same, but the y-coordinate will change. In other words, the y-coordinate becomes the opposite (signs change). In this case, since the y-coordinate was positive 8, when you reflect the point across the x-axis, the y-coordinate will change to -8

ELEN [110]3 years ago

5 0

This answer is 2, -7

I think
Good luck :)

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steposvetlana [31]

The number of basketball that will fill up the entire office is approximately 16,615.

Recall:

Volume of a spherical shape = $\frac{4}{3} \pi r^3$

Volume of a rectangular prism = $l \times w \times h$

Given:

Diameter of basketball = 9.5 in.

Radius of the ball = 1/2 of 9.5 = 4.75 in.

Radius of the ball in ft = 0.4 ft (12 inches = 1 ft)

Dimension of the office (rectangular prism) = 20 ft by 18 ft by 12 ft

First, find the volume of the basketball:

Volume of ball = $\frac{4}{3} \pi r^3 = \frac{4}{3} \times \pi \times 4.75^3\\$

Volume of basketball = $448.92 $ in^3$

Convert to $ft^3$

$1728 $ in.^3 = 1 $ ft^3$

Therefore,

Volume of basketball = $\frac{448.92}{1728} = 0.26 $ ft^3$

Find the volume of the office (rectangular prism):

Volume of the office = $20 \times 18 \times 12 = 4,320 $ ft^3$

Number of basket ball that will fill the office = Volume of office / volume of basketball

Thus:

Number of basket ball that will fill the office = $\frac{4,320}{0.26} = 16,615$

Therefore, it will take approximately 16,615 balls to fill up the entire office.

Learn more here:

brainly.com/question/16098833

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3 years ago

The length of a rectangular plot of land is 2m more than its breadth. If it's area is 120m^2, find its length and breadth.

olga_2 [115]

Answer:

length is 40 and breadth is 20

Step-by-step explanation:

120 =2( l + b )

120 = 2( 2x +x )

120= 2 x 3x

120 =6x

120/6 = x

20 = x

length=2x = 2 x 20 = 40

breadth= x = 20.

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4 years ago

Which two pairs of numbers have cubes that add up to 1729? because there are two pairs of numbers to find, you should select a t

qwelly [4]

It is called the hardy Ramanujan's number, named after the Indian mathematician, Srinivasa Ramanujan, and British Mathematician G. H Hardy.
Hardy went to visit Ramanujan while he was ill. He noticed that the number of the taxi he went in was 1729, which he thought was a dull number.

1729 = 12³ + 1³
1729 = 10³ + 9³

Fujiwara claimed that he proved there are only four numbers that have the property. Even though it seems to be true, he never has shown his proof. No other natural number, other than 1729, can be expressed as a sum of the cubes of two natural numbers in two different ways.

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Can someone please give me a thorough explanation of how to do this? It would help a lot if you did it fast. (If it's thorough e

mezya [45]

Hi there!
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