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
mixer [17]
3 years ago
5

If m ∆ n means m²-2mm+n³, determine the value of 3∆2.​

Mathematics
2 answers:
Novay_Z [31]3 years ago
6 0

\large\underline{\underline{ \sf\maltese Correct \ Question :- }}

If m ∆ n means m²-2mm+n², determine the value of 3∆2.

\large\underline{\underline{ \sf\maltese Answer :- }}

Here we are given that m ∆ n means m² -2mn +n². And we need to find the value of 3∆2 . So let's find out what does the " ∆ " operator does.

Here we can see that m² - 2mn - n² is the whole square of ( m - n)² . A inference can be taken out that the operator " ∆ " first subtracts the two numbers and then squares the obtained value to get the result . That is ,

\sf\implies m \Delta n = ( m - n )^2

Now similarly let's simplify out 3 ∆ 2.

Step 1 : <u> </u><u>Subtra</u><u>ct</u><u> </u><u>the </u><u>two</u><u> </u><u>numbers</u><u> </u><u>:</u><u>-</u><u> </u>

This means we need to subtract 2 from 3 . This will give result as ,

\sf\implies Result_1 = 3 - 2 =\pink{1}

Step 2 : <u>Square </u><u>the</u><u> </u><u>obta</u><u>ined</u><u> </u><u>val</u><u>ue</u><u> </u><u>:</u><u>-</u><u> </u>

Here , the value obtained from step 1 is 1 and the square of 1 is 1 . So our final result would be,

\sf\implies Result_{(final)}= 1^2 = \boxed{\pink{ 1 }}

jeka943 years ago
5 0

since m▲n=m^2-2mn+n^3

3▲2=3^2-2*3*2+2^3

=9-12+8

=17-12

=15

Done!

You might be interested in
The figure is formed from rectangles. find the total area. the diagram is not to scale
telo118 [61]

Answer:

The area of all the rectangles combined

Step-by-step explanation:

Add them together

ez

8 0
2 years ago
What is 31/10 as a mixed fraction
erma4kov [3.2K]
3 and 1 over 10 becasue 10 goes into 30 3 times
8 0
3 years ago
What is the value of the expression 6x - y when x = 3 and y = 1? (5 points)
Vladimir [108]

Answer:

the answer is 17

Step-by-step explanation:

6×3-1

= 17

6 0
3 years ago
HELP PLEASEE!!! I just need help with the 2 boxes
Soloha48 [4]

Answer:

y= x - 300

y = -246 -- Her equivalent weight on earth

Step-by-step explanation:

Given

The attached table

Required

Fill in the gaps

(a) The equation

First, we calculate the slope (m)

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

From the table, we can say that:

(x_1,y_1) = (0,-300)

(x_2,y_2) = (300,0)

So, we have:

m = \frac{0  -(-300)}{300 - 0}

m = \frac{0 +300}{300}

m = \frac{300}{300}

m = 1

The equation is then calculated using:

y - y_1 = m(x - x_1)

This gives:

y - (-300) = 1(x - 0)

y +300 = 1(x)

y +300 = x

y= x - 300

(b) When x = 54

Substitute 54 for x in y= x - 300

y = 54 - 300

y = -246

3 0
3 years ago
40% of what number is 28
Leto [7]
70
0.4x=28
x=28/0.4
x=70
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is a correct expansion of (3x + 2)(3x^2 + 4)
    9·2 answers
  • Dingane has $8.00, and exactly 30% of that money is from 5-cent coins. How many 5-cents coins does Dingane have?
    10·1 answer
  • At the grocery store, you buy a carton of milk for $1.25, a loaf of bread on sale for $0.35, and a box of cereal for $3.75. Use
    14·2 answers
  • What are the solutions to the system of equations?
    6·2 answers
  • Write the phrase as an expression. Then evaluate the expression when y=20 . the quotient of 40 and the difference of a number y
    11·1 answer
  • Two math classes took the same quiz. The scores of 10 randomly selected students from each class are listed below.
    9·1 answer
  • Find the slope of the line determined by each pair of points: (-1,3), (-6,-4)
    6·1 answer
  • Sara pays 5100 for tuition and fees for each of the two semesters plus an additional 260 for textbooks each semester what is the
    6·2 answers
  • Manny and John buy a pizza from Pizza Palace for $18. They decided to split
    14·2 answers
  • (FREE PTS) HAPPY HALLOWEEN EVERYONE! <br><br> Answer this question: What is 2+2?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!