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
If the simple interest on ​$7000 for 10 years is ​$6300​, then what is the interest​ rate? I will pick branliest answer with the
Roman55 [17]

Answer:

0.09

Step-by-step explanation:

So if you use the Simple interest equation it will begin with:
Interest total = Initial Amount of money x Interest rate per year x Years money is invested for.

Then substitute the values you have been given so:

$6300 = 7000 x Interest rate per year x 10.

This is simplifies to 6300 = 70,000 x Annual Interest rate

You can rearrange this to find the annual interest rate by dividing by 70,000:
\frac{6300}{70000} = Interest\ rate

Simplifying this would be:
\frac{63}{700}\\ = Interest rate.

The interest rate is 0.09.

8 0
1 year ago
Given 2x² = -8, x is ____
IrinaVladis [17]

Answer:

2x² = -8

x² = -4

The answer is no real solutions (x ∉ R) because a perfect square cannot be negative.

5 0
3 years ago
Read 2 more answers
Really need help on #15 please.
ollegr [7]

Step-by-step explanation:

Let's call L the length and W the width.  The length is 10 feet longer than the width, so:

L = W + 10

The area is the length times width, so:

119 = LW

Substituting:

119 = (W + 10) W

119 = W² + 10W

0 = W² + 10W − 119

0 = (W + 17) (W − 7)

W = -17 or 7

Since W must be positive, W = 7.

L = W + 10

L = 17

The length and width are 17 feet and 7 feet, respectively.

5 0
3 years ago
Math 1/3 divided by 3/8=
Phantasy [73]
<span>0.01388888888 is your answer

</span>
4 0
2 years ago
How do I round 47,283 to the nearest 100,000
rosijanka [135]

The answer is zero.

Explanation:

The 4 is in the ten-thousands place.

Write the number 47,283 with an additional zero in the 100,000 place.

047,283

To round to the nearest 100,000, all digits to the right of the 100,000 place become zero. That means that the digits 47283 all become zero. Since 4 is less than 5, the digit to its left is not raised by 1, so the 100,000 place digit remains zero, and you end up with 000,000, which is simply 0.

Answer: 0

7 0
3 years ago
Other questions:
  • Is 60% greater than 5/9
    5·1 answer
  • The five numbers 1, 2, 3, 4, 5 are written respectively on the five disks of the same size and placed in a hat. two disks are dr
    15·2 answers
  • Find a unit vector u in the same direction as v= (8,-4)
    9·1 answer
  • Carrie has 140 coins.She has 10 times as many coins as she had last month.How many coins did Carrie have last month
    9·1 answer
  • Solving for y 3x-y=8
    5·2 answers
  • 2x^2+x=4<br><br> How do you determine the solution
    7·1 answer
  • A pitcher of Kool-Aid uses one packet of flavoring, 1 cup sugar, and 8 cups of water. 1 cup of sugar = 200 grams. If the pitcher
    10·2 answers
  • Drag numbers to show which are closer to -3/5 and 4/5 on the number line.
    14·1 answer
  • performance determine the slope and the y-intercept given the following linear functions. 1.f(x)=3x-10​
    8·1 answer
  • Belinda is jumping on a trampoline. She jumps up with an initial velocity (v0) of 17 feet per second. The function d(t) = v0t-16
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!