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3 years ago

Classify the real number.

Mathematics

1 answer:

hjlf3 years ago

4 0

Answer:

rational number, whole number, and integer

Step-by-step explanation:

√441 = 21

21 is an integer, a whole number, and a rational number.

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Which point lies outside the circle with equation (x - 2)2 + (y + 3)2 = 4?

klasskru [66]

Graphing the circle and the points shows that the point that lies outside the circle is ...
(2, 0)

4 0

3 years ago

Read 2 more answers

A square has an area of 4 square centimeters. What is the length of one side, in centimeters?

Lunna [17]

Answer:

2 cm

Step-by-step explanation:

$\sqrt{4 cm^{2}} =2 cm$

7 0

3 years ago

In a drawer, there are 3 white socks, 4 black socks, and 2 brown socks. You pick out a sock, replace or, turn pick put a 2nd soc

slega [8]

I believe the answer is B) 6/81

6 0

3 years ago

Pleasssssssseeee help

astra-53 [7]

Rates like $ per channel is a slope, "m". The added fee is a constant so it's the intercept "b".
y = mx + b

So for the first problem (9)
(a)
y = total cost in dollars
x = number of premium channels
y = 16x + 44
(b) when x = 3 channels
y = 16(3) + 44
y = 92 $

the second problem (10)
(a) every 4 years the tree grows by 12-9=3 ft
So the unit rate or slope will be 3 ft per 4 yrs, (3/4). You can see this also by solving for slope "m" using the given points (4,9) and (8,12).

x = number of years
y = height of tree in ft
y = (3/4)x + b
use one of the points to find the y-intercept "b".

9 = (3/4)(4) + b
9 = 3 + b
9 - 3 = b
6 = b
y = (3/4)x + 6

(b) when x = 16
y = (3/4)(16) + 6
y = 12 + 6
y = 18 ft

5 0

3 years ago

The slope of a line on a distance-time graph represents

Dovator [93]

Answer:

speed

Step-by-step explanation:

In a distance-time graph:

Distance is the y-variable (dependent)

Time is the x-variable (independent)

The slope of a line is rise/run, or can also be calculated with this equation, where "m" is slope:

$m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

slope = y-variables / x-variables

slope = distance / time

If you divide distance by the time it took to get that far, you will find how fast you got there. This is called the speed.

You might also see this formula:

k = d/t

In the options, "time" and "distance" would not make sense, because those are the variables on the x-axis and y-axis.

8 0

3 years ago