In class, matthew stated "i think that a negative is like an opposite. That is why multiplying a negative times a negative equals a positive. The opposite of negative is positive, so it is just like multiplying the opposite of a negative twice, which is two positives." Do you agree or disagree with this statement? What would you say in response to him?

QUESTION POSTED AT 06/12/2019 - 01:54 PM

Answered by admin AT 06/12/2019 - 01:54 PM

Answer: Yes, I agree with this statement.

Step-by-step explanation:

Yes, I agree with this statement.

Whenever we multiply two negative numbers, we get a positive number.

As two negatives makes a positive.

Negative is just like an opposite.

Opposite of 4 is -4.

and negative of 4 is also -4.

The opposite of negative is positive.

i.e. opposite of -4 is 4.

So, Negative is always treat as opposite.

Post your answer

Related questions

Thomas works for a company that occupies a large campus. Every workday, he orders a cup of coffee on campus, and the $1.50 cost is automatically deducted from his paycheck. If Thomas visits the coffee shop 13 times, what will the net change in his paycheck be?

Answer:

When Thomas  visits the coffee shop 13 times than the  change in his paycheck be is $19.5 .

Step-by-step explanation:

As given

Thomas works for a company that occupies a large campus.

Every workday, he orders a cup of coffee on campus, and the $1.50 cost is automatically deducted from his paycheck.

If Thomas visits the coffee shop 13 times .

Thus

Net change in Thomas  paycheck = 13 × Cost per deduction from  paycheck

Put all the values in the above

Net change in Thomas  paycheck = 13 × 1.50

                                                        = $ 19.5

Therefore when Thomas  visits the coffee shop 13 times than the  change in his paycheck be is $19.5 .

ANSWERED AT 28/01/2020 - 01:11 AM


QUESTION POSTED AT 28/01/2020 - 01:11 AM

An ultra-low flush toilet uses 1.6 gallons every time it is flushed. What is the pattern that describes the total water used after n flushes? How many gallons have been used after 10 flushes?

The pattern is geometric because is adds 1.6 every flush.

After 10 flushes, 16 gallons are used.

ANSWERED AT 28/01/2020 - 01:11 AM


QUESTION POSTED AT 28/01/2020 - 01:11 AM

The product of two consecutive negative integers is 306. What are the integers?

The integers are -17 and -18

ANSWERED AT 28/01/2020 - 01:10 AM


QUESTION POSTED AT 28/01/2020 - 01:10 AM

Write an expression to describe the sequence below. Use n to represent the position of a term in the sequence, where n = 1 for the first term. -7, -14, -21, -28, …

F(n)=1+-7. You put the F as the equation and 1 as the first term plus whatever you add

ANSWERED AT 28/01/2020 - 01:08 AM


QUESTION POSTED AT 28/01/2020 - 01:08 AM

The sum of the measures of the interior angles of a triangle is equal to _____.

180 degrees I mean I do not know how to really explain it its based on the amount of sides a shape has and the sum of all 3 interior angles is 180

ANSWERED AT 28/01/2020 - 01:06 AM


QUESTION POSTED AT 28/01/2020 - 01:06 AM

Trapezoid JKLM is shown on the coordinate plane below: Trapezoid JKLM on the coordinate plane with ordered pairs at J negative 6, 5, at K negative 3, 5, at L negative 1, 2, at M negative 8, 2. If trapezoid JKLM is translated according to the rule (x, y) → (x + 2, y − 6), what are the coordinates of point L'?

Answer:

The Coordinate of point L' is (1,-4)

Step-by-step explanation:

Trapezoid JKLM on the coordinate plane with ordered pairs

J(-6,5)

K(-3,5)

L(-1,2)

M(-8,2)

If trapezoid JKLM is translated according to the rule (x, y) → (x + 2, y − 6)

We need to find the coordinate of L'

L(-1,2)

(x, y) → (x + 2, y − 6)

Rule of translation: x-coordinate shift 2 unit right and y-coordinate shift 6 unit down.

    L → L'

(-1,2) → ( -1+2, 2-6)

(-1,2) → (1,-4)

Hence, The Coordinate of point L' is (1,-4)

ANSWERED AT 28/01/2020 - 01:03 AM


QUESTION POSTED AT 28/01/2020 - 01:03 AM

What is the expression for "the difference between five times a number and twice that number"?

The answer to this question is 5x - 2x. Let x be the unknown variable and five times a number is equal to 5x then subtract it by the twice of that number which is 2x. In solving problems like this you have to let a certain variable represent the unknown.

ANSWERED AT 28/01/2020 - 01:02 AM


QUESTION POSTED AT 28/01/2020 - 01:02 AM

If pqrs is a rhombus, what statements must be true?

If PQRS is a rhombus, then the opposite sides must be parallel to each other. 

good luck :)

ANSWERED AT 28/01/2020 - 12:59 AM


QUESTION POSTED AT 28/01/2020 - 12:59 AM

A website charges $3 for each movie you download. They also charge a one-time sign-up fee of $14.99. whats the input variable?

what is the input variable?=m the number of movies

what is the output variable?=c the total cost

Think about the relationship. Which equation models the cost c(m), of renting m movies? = c(m)=3m+14.99

What is the domain of the function?= m=0, 1, 2, 3.....



ANSWERED AT 28/01/2020 - 12:58 AM


QUESTION POSTED AT 28/01/2020 - 12:58 AM

Terri is analyzing a circle, y2 + x2 = 36, and a linear function g(x). Will they intersect? y2 + x2 = 36 g(x) graph of the function y squared plus x squared equals 36 x g(x) −4 −4 −2 −2 2 2 Yes, at positive x-coordinates or zero Yes, at negative x-coordinates or zero Yes, at negative and positive x-coordinates or zero No, they will not intersect

Answer:

The graph of the circle and function g(x) intersects at the positive and negative x-coordinates as well as at the origin.

Step-by-step explanation:

The equation of circle is given as:

x^2+y^2=36

also the graph of the function g(x) is given by:

We are given a set of values in a table as:

  x         g(x)

−4       −4

 −2        −2

   2          2

Hence, the function g(x) could be computed with the help of slope intercept form of a equation as:

y=mx+c; where m denotes the slope of the line and c denotes the y intercept.

when x=-4 g(x)=y=-4

-4=-4m+c

also when x=-2 then y=g(x)=-2

-2=-2m+c

on solving the above two equations using elimination method we get,

m=1 and c=0

hence, y=g(x)=x

Now we are asked tgo find whether the graph of the circle and g(x) intersect each other or not.

Clearly from the graph we could see that the graph of the circle and function g(x) intersects at the positive and negative x-coordinates as well as at the origin.


ANSWERED AT 28/01/2020 - 12:50 AM


QUESTION POSTED AT 28/01/2020 - 12:50 AM

Is the expression x^3 * x^3 * x^3 equal to x^3*3*3?

No. 
x^3 * x^3 * x^3 > x^3*3*3
x^3 * x^3 * x^3 = 19683
whereas  x^3*3*3 = 7.626 (rounded to 3 decimal places)

ANSWERED AT 28/01/2020 - 12:49 AM


QUESTION POSTED AT 28/01/2020 - 12:49 AM

Fractions- seven over twenty equals?

7/20 is equal to 0.35 or can also be equal to 35% of the whole.

ANSWERED AT 28/01/2020 - 12:49 AM


QUESTION POSTED AT 28/01/2020 - 12:49 AM

If cos Θ = negative two over five and tan Θ > 0, what is the value of sin Θ?

Answer:

negative square root 21 over 5

Step-by-step explanation:

The previous answer was only wrong because their answer was different from their explanation. They forgot the negative sign in front. simple slip up. Give them the rating instead. The attached images are proof.

ANSWERED AT 28/01/2020 - 12:48 AM


QUESTION POSTED AT 28/01/2020 - 12:48 AM

10.6ft times 9.28ft =

10.6 x 9.28 = 98.368

All you have to do is multiply. No conversion because they are the same unit of measure. 

ANSWERED AT 28/01/2020 - 12:48 AM


QUESTION POSTED AT 28/01/2020 - 12:48 AM

Which fraction is equal to 2/3

4/6 , 6/9 would be 2 examples

ANSWERED AT 28/01/2020 - 12:44 AM


QUESTION POSTED AT 28/01/2020 - 12:44 AM

Your monthly living expenses are $1500 on an income of $1,650 per month. Your goal is to have an emergency fund of 4 times your monthly living expenses. Your emergency fund savings account has $2,400 and you put the remainder of your monthly income into the emergency fund each month. How much more money would you have to save each month to complete your emergency fund in 12 months? a. $300 per month b. $150 per month c. $75 per month d. $60 per month

Your end goal is to have $6000 total in 12 months. since you have $2400 already you can subtract that from 6000 leaving you with $3600 over the course of 12 months. since you already put $150 in a month over the course of 12 months you would have $1800 which is only half of the goal of $3600. in order for you to put in $3600 you would have to put an additional 150 in your savings along with your regular 150 making the answer b.

ANSWERED AT 28/01/2020 - 12:41 AM


QUESTION POSTED AT 28/01/2020 - 12:41 AM

A pound of popcorn is popped for a class party. The popped corn is put into small popcorn boxes that each hold 120 popped kernels. There are 1,450 kernels in a pound of unpopped popcorn. If all the boxes are filled except for the last box, how many boxes are needed and how many popped kernels are in the last partially filled box?

Answer:

13 boxes, in last box 10 kernels.

Step-by-step explanation:

There are 1450 kernels in a pound.

Each box hold 120 popped kernels

Let 'n' number of boxes have been filled with 1450 kernels and 120 popped kernels in each box.

Therefore, equation will be 120x = 1450

                                         x = \frac{1450}{120}

                                           = 12\frac{1}{12} boxes

By this answer we understand that 12 boxes have been filled and \frac{1}{12} part of the last box was filled.

Now number of popcorn kernels in 12 boxes = 12 × 120 = 1440

Remaining kernels for the last box = 1450 - 1440 = 10 kernels

Therefore, 13 boxes required and 13th box  will have 10 kernels.

ANSWERED AT 28/01/2020 - 12:40 AM


QUESTION POSTED AT 28/01/2020 - 12:40 AM

Four times the square of a non-zero number is equal to eight times the number?

The correct answer is 2.
4x^2=8x
4x^2-8x=8x-8x
4x^2-8x=0
4x(x-2)=0
x=0 or x=2
Therefore x=2

ANSWERED AT 28/01/2020 - 12:36 AM


QUESTION POSTED AT 28/01/2020 - 12:36 AM

The tens digit of a number is twice the ones digit. The sum of the digit in the number 12. What is the number? X represents* 2x represents *

Let x = the ones digit
Let y = the tens digit

x+2y=12
x=2y
x+y=12 substitute x for 2y to get:
(2y)+y=12 add like terms to get:
3y=12
3y=12 divide both sides by 3 to get:
y=4
x+y=12 substitute y for 4 to get:
x+4=12 subtract 4 from both sides to get:
x=8
so if x=ones
and y=tens
then the answer is 48

ANSWERED AT 28/01/2020 - 12:36 AM


QUESTION POSTED AT 28/01/2020 - 12:36 AM

Marcus spent 10 hours doing his homework last week. This eek he spent 11 hours doing his homework. He say he spent 110% more time doing homework this week. Is he correct? how do i justify

How much extra hours did he spent doing his homework between last week and this week:
11-10= 1 hour
Extra hour over original hour x 100% will be the percentage of extra time he did his homework:
1/10 x 100% = 10%
Therefore, he is not correct.

ANSWERED AT 28/01/2020 - 12:35 AM


QUESTION POSTED AT 28/01/2020 - 12:35 AM

Q1 In the class there are 11 girls and 11 boys what is the percentage of the class are boys? Q2 A supermarket is reducing the price of its own brand washing powder by 10%. The original price is £2.50 what is the reduced price

If it reduces by 10%, then u are paying 90%
90% of 2.50...." of " means multiply...turn the percent to a decimal
0.90 * 2.50 = 2.25 is the reduced price

ANSWERED AT 28/01/2020 - 12:34 AM


QUESTION POSTED AT 28/01/2020 - 12:34 AM

The time, T, for a car to travel from Macon to Atlanta is inversely proportional to the speed, R. If it takes 1.75 hours to travel between the two cities at 55 mph, find (in hours) the time to travel between the two cities at 70 mph. It would take ____ hours to travel from Macon to Atlanta. Round your answer to two decimal places.

As the time and the speed are inversely proportional:
1.75  : t  = 70 : 55
70 t = 1.75 · 55
70 t = 96.25
t = 96.25 : 70 = 1.375 ≈ 1.38 ( rounded to 2 decimal places )
It would take 1.38 hours   to travel from Macon to Atlanta.

ANSWERED AT 28/01/2020 - 12:34 AM


QUESTION POSTED AT 28/01/2020 - 12:34 AM

Multiply out the brackets and simplify x(x3+2)

x4+2x is the answer Simplify the expression.

ANSWERED AT 28/01/2020 - 12:33 AM


QUESTION POSTED AT 28/01/2020 - 12:33 AM

Eight less than four times a number is the same as 13 more than the number. What is the number?

4n - 8 = n + 13
4n - n = 13 + 8
3n = 21
n = 21/3
n = 7....the number(n) = 7

ANSWERED AT 28/01/2020 - 12:32 AM


QUESTION POSTED AT 28/01/2020 - 12:32 AM