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3 years ago

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Mathematics

1 answer:

Aleksandr-060686 [28]3 years ago

3 0

Help with what im so confused

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Now, look at the set of integers. Complete the table for the closure property if integers under the four operations.

Kisachek [45]

Answer:

See below.

Step-by-step explanation:

Addition: closed

Example: -5 + 10 = 5, and -5, 10, and 5 are all integers

Subtraction: closed

Example: 10 - 8 = 2, and 10, 8, and 2 are all integers

Multiplication: closed

Example: -4 * 7 = -28, and -4, -7 and -28 are all integers

Division: not closed

Example: 5/2 = 2.5, and 2.5 is not an integer, although 2 and 5 are integers

The set of integers is closed under addition, subtraction, and multiplication because any addition, subtraction, or multiplication of integers always results in an integer.

The set of integers is not closed under division because a division of integers does not always result in an integer.

8 0

2 years ago

A jar of natural peanut butter normally costs $4.00. Today its on sale for $3.60. What is the percent of the discount?

Alika [10]

I thought it would be 10 percent but my cal. says 1.44

4 0

2 years ago

Read 2 more answers

Which equation represents the graphed function?

makvit [3.9K]

The equation y = –2 x + 3 represents the graphed function.

Answer: Option A

<u>Step-by-step explanation:</u>

As per the mapping points in the attached figure, A (0, 3) and B (1, 1)

Step 1: Find the slope of the line.

We know that the formula to calculate the slope between two points is equal to

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

$\left(x_{1}, y_{1}\right)=(0,3) \text { and }\left(x_{2}, y_{2}\right)=(1,1)$ . So, the slope ‘m’ would be

$m=\frac{1-3}{1-0}=-2$

Step 2: Find the y-intercept

We know that the y-intercept is the value of y when the value of x is equal to zero. In this problem the y-intercept is the point A (0, 3)

Step 3: Find the equation of the line into slope-intercept form

We know that the equation of the line into slope-intercept form is equal to

y = m x + b

We have m = - 2 and b = 3 as b is equal to the y-coordinate of the y-intercept. Substitute these, we get

y = - 2 x + 3

8 0

2 years ago

Read 2 more answers

Can someone help me with this

snow_tiger [21]

Answer: 80 in 5 seconds and 9 seconds for 144 feet

Step-by-step explanation:

16 x 5 =80

144 \ 16 =9

3 0

1 year ago

What is the value of 2/3+(-1/6)

sergey [27]

Answer:

1/2

Step-by-step explanation:

myltiply 2/3 by 2/2 and then subtact 1/6 from the new 4/6 to give you 3/6. it simplifies to 1/2

3 0

2 years ago