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Gelneren [198K]
2 years ago
5

Classify the number (choose all that apply): -20 *

Mathematics
1 answer:
Citrus2011 [14]2 years ago
6 0

Answer:

Whole Number

Integer x

Rational Number

Irrational Number x

Step-by-step explanation:

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Pls help me thanks :)
Lesechka [4]
Answer:
Do 7 -divided by- 1/2



Step-By-Step Explanation

If you do that u will get ur answer.
6 0
2 years ago
Dhani has 4 cards numbered 1 through 4. He removes 2 cards at random and adds their values.
DanielleElmas [232]

Answer:

2/3

Step-by-step explanation:

The total number of sums (not distinct) is 4\cdot 3=12, because we're removing without replacement.

Count the sums that fit the stipulation (sum \leq 5):

1,2,\\2,1\\1,3\\3,1\\1, 4\\4, 1\\2, 3, \\3,2

There are 8 sums that work. Therefore, the desired answer is \frac{8}{12}=\boxed{\frac{2}{3}}

3 0
2 years ago
The function f(x) = 200 × (1.098)x represents a village's population while it is growing at the rate of 9.8% per year.
AlexFokin [52]

The time for the village to dig the new well is about 7 1/2 years. At this time the population doubles from its current size.

<h3>How to graph a function?</h3>

For a function f(x) = y, the steps to draw a graph for the given function are as follows:

  • Consider certain values of x
  • Substitute x values in the given function to obtain y values
  • Plot the x and y values in the graph
  • Join the points to know the variation.

<h3>Calculation:</h3>

It is given that,

f(x) = 200 × (1.098)^x

Village's population growing rate = 9.8%

Creating a table for x and f(x) values:

x: 0   2   4   6   8   10

f(x = 0) = f(0) = 200 × (1.098)^0 = 200

f(x = 2) = f(2) = 200 × (1.098)^2 = 241

f(x = 4) = f(4) = 200 × (1.098)^4 = 291

f(x = 6) = f(6) = 200 × (1.098)^6 = 350

f(x = 8) = f(8) = 200 × (1.098)^8 = 423

f(x = 10) = f(10) = 200 × (1.098)^1^0 = 509

So,

(x, f(x)): (0, 200)  (2, 241)  (4, 291)  (6, 350)  (8, 423)  (10, 509)

Plotting these points in the graph and joining the points, the graph is shown below.

Finding the time for the village to dig a new well:

It is given that the population doubled from its current size, the village will need to dig new water well.

The current size of the village = 200

If it doubles for a certain time 't' = 400

So,

400 = 200 × (1.098)^t

⇒ (1.098)^t = 2

⇒ log(1.098)^t = log 2

⇒ t log(1.098) = 0.301

⇒ t × 0.04 = 0.301

∴ t = 7.525 years

Therefore, the village's population becomes double at the time 7 and half years from now. So, after 7 1/2 years, the village needs to dig a new well.

Learn more about the function and its graph here:

brainly.com/question/4025726

#SPJ1

3 0
1 year ago
Find s(2t - 4) for s(t) = 3t - 7 <br> A)6t - 19 B) 6t - 18 C) 5t - 11 D) 5t - 19
asambeis [7]
Hello,

Answer A

s(x)=3x-7
s(2t-4)=3*(2t-4)-7=6t-12-7=6t-19
3 0
3 years ago
The bearing of a plane from an airport is 65 degrees
AleksAgata [21]

Answer:

115

idk how to explain this but u just use the protractor

8 0
3 years ago
Read 2 more answers
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