1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vivado [14]
3 years ago
13

Which answer is correct

Mathematics
1 answer:
inn [45]3 years ago
8 0

Answer: Choice B) Integers include whole numbers and natural numbers.

======================================================

Explanation:

Let's go through the four answer choices to see which are true or false.

  • A) False. A rational number like 2/3 is not a natural number (1,2,3,4,...). This is one counterexample out of infinitely many.
  • B) True. The set of integers is {..., -3, -2, -1, 0, 1, 2, 3, ...} basically positive and negative values that don't have fractional or decimal components. Zero is included.
  • C) False. Similar reasoning as choice A above.
  • D) False. A natural number like 7 can be written as 7/1, which means it is a rational number. Any rational number is of the form a/b with a,b being integers and b is nonzero.

You might be interested in
Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form.
Vladimir79 [104]

Answer:

a. T² - T¹ = d ( A. P) -5

b. T²/T¹ = r (G. P) 3/4

Step-by-step explanation:

a. 15 - 20 = -5

b. 15/20 = 3/4

4 0
3 years ago
The ratio of boys to girls is 7:12 if there are 76 children how many are girls?
Vikentia [17]
12 girls out of 19, how many out of 76

12 - x
19 - 76

Cross product:

19x= 1152
/19. /19
x= ~61

There are (around) 61 girls
3 0
3 years ago
Read 2 more answers
This table gives a few (x, y) pairs of a line in the coordinate plane. What is the x-intercept of the line?
PIT_PIT [208]

Answer:

<em>x=-14</em>

Step-by-step explanation:

The x-intercept of a line is the value of x that makes y=0.

A line can be expressed in its slope-intercept form:

y=mx+b

Once determined the equation of the line, the x-intercept can be calculated by setting y=0 and solving for x.

Let's find the slope of the line.

Suppose we know the line passes through two points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:

\displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Let's pick the first two points of the table (-94,24) (-74,18). The slope is:

\displaystyle m=\frac{18-24}{-74+94}=\frac{-6}{20}=-\frac{3}{10}

The equation of the line is:

\displaystyle y=-\frac{3}{10}x+b

Now use one of the points to find b, for example (-94,24):

\displaystyle 24=-\frac{3}{10}\cdot (-94)+b

Operating:

\displaystyle 24=\frac{141}{5}+b

Solving:

b=24-\frac{141}{5}=-\frac{21}{5}

The complete equation of the line is:

\displaystyle y=-\frac{3}{10}x-\frac{21}{5}

To find the x-incercept, set y=0 and solve:

\displaystyle 0=-\frac{3}{10}x-\frac{21}{5}

\displaystyle x=\frac{\frac{21}{5}}{-\frac{3}{10}}=-\frac{21}{5}\cdot \frac{10}{3}

x=-14

5 0
3 years ago
I need help with this math
ivann1987 [24]

Answer:

the answer is 0,3

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Laura has a step of 50cm She walks along by taking two steps forward and one step back. What is the least number of steps counti
Vilka [71]

Answer:

The least number of steps she takes to reach 20 m is 118 steps

Step-by-step explanation:

For Laura, the length of a walking step = 50 cm = 0.5 m

The repeating number of steps she takes = Two steps forward one step backwards

The number of forward steps it would take for her to reach 20 m = (20 m)/(0.5 m) = 40 steps

Given that she always takes two steps forward and one step backwards, we have;

The number of steps forward every three steps = 2 step forward + (-1) step (backward)

The number of steps forward every three steps = 2 - 1 = 1 step forward

To reach 39 steps forward, she would need 39 × 3 =  117 steps

To get to the 40 steps she needs just a step forward, making the total number of steps to reach 40 steps = 117 + 1 = 118 steps

Therefore, the least number of steps she takes to reach 20 m = 118 steps.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Given the equation y = 3x − 4, what is the value of y when x = 4?
    9·1 answer
  • (6x + 7) - (9x + 9) simpilest form pls
    7·2 answers
  • A) Complete the table of values for y = x^2 - 4x<br>​
    9·1 answer
  • For all values of x
    6·1 answer
  • What is 138 rounded to the nearest hundredth
    6·1 answer
  • PLEASE HELP I"LL GIVE BRAINLIEST!!
    11·2 answers
  • I NEED HELP WITH A QUICK QUESTION! 30 POINTS!
    5·1 answer
  • If the vertex is (0,10) and the x-intercepts is (-8,0) and (8,0). What is the parabola?​
    7·1 answer
  • 10-24
    5·1 answer
  • I donnt know ..............
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!