Which of the following shows why the commutative property doesn't work under subtraction

Answers

Answer 1

Answer:

Answer with explanation:

Commutative property under subtraction:

If a and b are any two real numbers such that,⇒ a-b =b-a, then we say that ,a and b Satisfy Commutative property under Subtraction.

Take any two real numbers

a=5.6

And,b=7

→a-b

=5.6-7

= -1.4

→b-a

=7-5.6

=1.4

So,a-b≠b-a

Therefore , we can say that, real numbers doesn't satisfy commutative property under subtraction.

Option D: ⇒5-1≠1-5

This statement shows that, commutative property doesn't work under subtraction.

Answer 2

Answer: Hello! To answer your question, you first need to know what the commutative property is and does. Down to the basics, it lets you switch around numbers and it would allow me to say that 2+5=7 and 5+2=7. This property also works in multiplication, because if I take 4*2=8, and 2*4 still equals 8. Now that I've either refreshed or hopefully helped you to understand the property better, why wouldn't it work under subtraction? If you switch numbers around in subtraction, will your answer still be the same? Once you answer that, take a peak at the worksheet! I hope this has helped in some way, and if you have any further questions send me a question or another message. Good luck :)

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Tom took a trip of 1,020 miles . He traveled by train at 55 miles an hour and the same number of hours by plane at 285 mph . How many hours did the trip take?

Answers

The number of hours Tom took a trip of 1,020 miles is 3 hours.

Given that, Tom took a trip of 1,020 miles.

What is the speed?

The speedformula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance traveled by a body in a given period of time. The SI unit of speed is m/s.

Tom traveled by train at 55 miles an hour and the same number of hours by plane at 285 mph.

Let the number of miles travelled by train be x. Then, the number of miles travelled by plane be 1020-x.

Time = x/55 = (1020-x)/285

⇒ 285x = 55 (1020-x)

⇒ 285x = 56100 - 55x

⇒ 285x + 55x = 56100

⇒ 340x= 56100

⇒ x = 56100/340

⇒ x = 165 miles

So, time = 165/55 = 3 hours

Therefore, the number of hours Tom took a trip of 1,020 miles is 3 hours.

To learn more about the speed, distance, and time visit:

brainly.com/question/4978052.

#SPJ5

Answer:

He traveled 3 hours by train and 3 hours by plane, so the trip take 6hours.

Find the mean19.2,19.6. 16.4, 17.1, 19.0, 17.4, 17.3, 20.1, 19.0, 17.5, 17.6, 18.6, 18.4, 17.7, 19.5, 18.4, 18.9, 17.5, 19.3, 20.8

Answers

The mean is 18.465 to find mean get the sum of the values by adding them all up. Divide the sum by the number of values in the data set

WHICH EXPRESSION IS EQUIVALENT TO SIN 22 COS 18 + COS 22 SIN 18?

Answers

$sin(\alpha+\beta)=sin\alpha cos\beta+cos\alpha sin\beta\n\nsin22^ocos18^o+cos22^osin18^o=sin(22^o+18^o)=sin40^o\approx0.6428$

Answer:

find the exact value using trigonometric identities 0.6427876

Step-by-step explanation:

Carlos has 58 pencils. What is the value of the digit 5 in this number?

Answers

read it aloud: fifty-eight. The 5 stands for "50" or fifty.

another way to look at it is to count the position at which 5 is: it's the second position from the right. In our counting system, the places have the value of 10 to the power of (number of the position minus 1): the position is 2: so the value is 5(the digit)*10^(2-1), which is 5*10^(1)=5*10, which is 50

fifty is the value in your question

The tangent line to the graph of y = h(x) at the point (-1, 6) passes through the point (4, 2). Find h(-1) and h'(-1).How do I solve this?

Answers

Answer:

h(-1)=7

point slope formula y-y1=m(x-x1), m slope, (x1,y1) point

slope is 2/10=1/5

y-9=(1/5)(x-9)=(1/5)x-(9/5)

y=(1/5)x+(36/5) the equation of the tangent line.

Step-by-step explanation:

The slope of the tangent line is the derivative of h(x). That is the slope of the line which is (1/5). The previous -1/5 was in error.

Scrooge-Oh! But he was a tight-fisted hand at the grindstone! Scrooge! a
squeezing, wrenching, grasping, scraping, clutching, covetous old
sinner! Hard and sharp as flint, from which no steel had ever struck out
generous fire; secret, and self-contained, and solitary as an oyster. The
cold within him froze his old features, nipped his pointed nose, shrivelled
his cheek, stiffened his gait; made his eyes red, his thin lips blue; and
spoke out shrewdly in his grating voice. A frosty rime' was on his head,
and on his eyebrows, and his wiry chin. He carried his own low
temperature always about with him; he iced his office in the dog-days;
and didn't thaw it one degree at Christmas.
a stone for sharpening knives
2-wanting what someone else owns
3- frost
1. How is language used in this extract to describe Scrooge?
2. Write a description of an unusual character-real or
imagined

Answers

Answer:

Step-by-step explanation:

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