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3 years ago

1. to which rational number subset(s) do the following numbers belong?

Mathematics

1 answer:

scoray [572]3 years ago

5 0

B.natural numbers, whole numbers, and integers

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When 0.5(20x – 50y + 36) – 0.25(–100x + 40y – 12) is simplified, what is the resulting expression?

xz_007 [3.2K]

Distribute -

(Multiplying by 0.5 is same as divide by 2)
10x-25x+18 - 25x -10y + 3
The answer is C

5 0

3 years ago

Read 2 more answers

Order these numbers from least to greatest.6.4052 6.46.0066.06

BaLLatris [955]

We have the following:

To organize the number from least to greastest, we must look at the decimals in this case, since they all start with 6

$\begin{gathered} 6.4052\rightarrow4052 \\ 6.4\rightarrow4000 \\ 6.006\rightarrow0060 \\ 6.06\rightarrow0600 \\ \text{now we organize these values from least to greastest} \\ 0060 \\ 0600 \\ 4000 \\ 4052 \end{gathered}$

Therefore the order of the numbers is

$\begin{gathered} 6.006 \\ 6.06 \\ 6.4 \\ 6.4052 \end{gathered}$

6 0

1 year ago

A highway is going to be built around a city. The highway will be in the shape of a perfect circle, and its total length will be

Molodets [167]

Answer:

The area that is surrounded by the highway on the billboard is approximately 89.34 square meters

Step-by-step explanation:

The given parameters are;

The length of the circle shaped highway = 251.2 km

The scale of the map of the bus routes along the highway = 1:7,500

The circumference of a circle, C = 2·π·r = The length of the perimeter of the circle

Therefore, we have;

The circumference of the highway = The length of the circle shaped highway = 251.2 km

The circumference of the highway, C = 251.2 km = 2·π·r

The radius of the circular highway path, r = 251.2 km/(2·π) ≈ 39.994217 km

The area of a circle, A = π·r².

The area of the highway = π·r² = π × (39.994217 km)² ≈ 5,025.09492434 km.²

Given that the scale of the map = 1:7,500. we have;

The scale of the area = (1:7,500)² = (1:56,250,000)

The size of the drawing, 5,025.09492434 km.²/(56,250,000) = 0.00008933502 km² = 89.33502 m.²

Therefore, the area that is surrounded by the highway on the billboard, rounded to the nearest hundredth of a square meter ≈ 89.34 m.²

5 0

3 years ago

Which of the following relations is a function? A. { (1, 2), (1, 3), (1, 4), (1, 5) } B. { (1, 3), (2, 3), (4, 3), (9, 3) } C. {

PtichkaEL [24]

The answer would be B

4 0

3 years ago

I need help on this pls help

levacccp [35]

Answer:

slope = $-\frac{3}{4}$

Step-by-step explanation:

The slope of a line can be found by identifying two points and the graph and finding the overall change in y over the change in x:

$slope=\frac{(y_{2}-y_{1}) }{(x_{2}-x_{1}) }$

Using the points on the given graph of (-3, 2) and (1, -2):

$\frac{-1 - 2}{1 - (-3)}=\frac{-3}{4}$

So, slope = $-\frac{3}{4}$

8 0

4 years ago