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3 years ago

Expand and simplify (3m-2n)²

Mathematics

2 answers:

oee [108]3 years ago

7 0

Answer:

9m^2 - 12mn + 4n^2

Step-by-step explanation:

Olegator [25]3 years ago

7 0

Answer:

9m²-12mn+ 4n²

Step-by-step explanation:

First you expand it so

(3m-2n)(3m-2n)

9m²-6mn-6mn+4n²

9m²-12mn+ 4n²

And this is the simpliest form , hope this helped:))

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Write each as the sum of two terms in the form t_n,r. t_5,3 , t_11,2 , t_15,13

Anarel [89]

The sum of two terms are:

t₅, ₃ = 8
t₁₁, ₂ = 13
t₁₅,₁₃ = 28.

<h3>What is the sum about?</h3>

The sum of two numbers is one that tells you to find the sum of two or more numbers, and as such, you have to add the numbers altogether.

t₅, ₃ = 5 + 3

= 8

t₁₁, ₂ = 11 + 2

= 13

t₁₅,₁₃ = 15 + 13

= 28.

Hence the correct sum of two terms are:

t₅, ₃ = 8
t₁₁, ₂ = 13
t₁₅,₁₃ = 28.

Learn more about sum from

brainly.com/question/17695139

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2 years ago

Gina has $175 with which to buy items at the bake sale at school. The graph shows the amount of money she has remaining and the

Triss [41]

Answer:

Step-by-step explanation:

You can delete options A and C, because there are multiple domains and ranges throughout the graph.

B or D?

Range - y axis

Domain - x axis

You can see that the x axis goes to 25 and y axis goes till 175.

Therefore the answer is B

Hope this helps you!

8 0

2 years ago

show the sample space of a toss of two dice as a list denote the event of a sum of 3 or 6 or 9 on the list

Ratling [72]

The sample space is:
(1, 1); (1, 2) - sum of 3; (1, 3); (1, 4); (1, 5) - sum of 6; (1, 6);
(2, 1) - sum of 3; (2, 2); (2, 3); (2, 4) - sum of 6; (2, 5); (2, 6);
(3, 1); (3, 2); (3, 3) - sum of 6; (3, 4); (3, 5); (3, 6) - sum of 9;
(4, 1); (4, 2) - sum of 6; (4, 3); (4, 4); (4, 5) - sum of 9; (4, 6);
(5, 1) - sum of 6; (5, 2); (5, 3); (5, 4) - sum of 9; (5, 5); (5, 6);
(6, 1): (6, 2); (6, 3) - sum of 9; (6, 4); (6, 5); (6, 6)

4 0

4 years ago

Radius OB measures x units. Which expression represents

777dan777 [17]

Answer:

Circumference of the smaller circle = 2.1x units

Step-by-step explanation:

Given question is incomplete; here is the complete question.

Two similar circles are shown. The circumference of the larger circle, with radius OB, is 3 times the circumference of the smaller circle, with radius OA. Radius OB measures x units. Which expression represents the circumference of the smaller circle with radius OA ?

Radius of the larger circle OB = x units

Radius of the smaller circle OA = y units

Circumference of larger circle = 2πx units

Circumference of smaller circle = 2πy units

Since circumference of larger circle is 3 times the circumference of smaller circle,

2πx = 3(2πy)

2πx = 6πy

x = 3y

y = $\frac{x}{3}$

Therefore, circumference of the smaller circle = $2\pi (\frac{x}{3})$ units

= $\frac{2\pi x}{3}$ units

= 2.094x

≈ 2.1x

Circumference of the smaller circle circle = 2.1x units

7 0

4 years ago

Given sec A = 5/3 and that angle A is in Quadrant I, find the exact value of csc A in simplest radical form using a rational den

serg [7]

9514 1404 393

Answer:

5/4

Step-by-step explanation:

The relationship between the sec and csc functions is ...

csc(A) = sec(A)/√(sec²(A) -1)

For the given value of sec(A), this is ...

csc(A) = (5/3)/√((5/3)² -1) = (5/3)/√(16/9) = (5/3)/(4/3)

csc(A) = 5/4

Some calculators can tell you the answer directly.

5 0

3 years ago

Expand and simplify (3m-2n)²​

Expand and simplify (3m-2n)²