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Lina20 [59]
3 years ago
5

Show twelve in four different ways

Mathematics
1 answer:
Lostsunrise [7]3 years ago
5 0
12 can be shown in four different ways by performing subtraction, addition, multiplication, and/or division:

14 - 2
6 + 6
3 x 4
60 / 5

All of these expressions result in 12.
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3. 100x2-36y2 ??<br> ito pa guys pleasedddd!!
uranmaximum [27]

Answer:

4(5x - 3y)(5x + 3y)

Step-by-step explanation:

Assuming you require the expression factored.

Given

100x² - 36y² ← factor out 4 from each term

= 4(25x² - 9y²) ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , thus

25x² - 9y²

= (5x)² - (3y)² ← with a = 5x and b = 3y

= (5x - 3y)(5x + 3y)

Thus

100x² - 36y² = 4(5x - 3y)(5x + 3y) ← in factored form

8 0
2 years ago
What is 2/5 divided 3/4
Zepler [3.9K]

Answer:

8/15

Step-by-step explanation:

To divide by a fraction, change the division to a multiplication, and flip the fraction.

2/5 / 3/4 = 2/5 * 4/3 = 8/15

4 0
3 years ago
The angle between a 180-pound force F and AB= 5i + 2j is 30.Find the work done by F in moving and object from A to B.
Alexeev081 [22]

Answer:

W=839.464\ ft*lbf

Step-by-step explanation:

The work done is the product of the magnitude of the force applied to the object by the magnitude of the displacement of the object by the cosine of the angle between the force and direction of the displacement. This is:

W=|F|*|r|cos(\theta)

In this case

\theta=30\°

|F|=180 pound force

The magnitude of vector AB is:

|r|= \sqrt{5^2 + 2^2}\\\\|r|= \sqrt{29}\ fr

Finally the work is:

W=180*\sqrt{29}*cos(30\°)

W=839.464\ ft*lbf

6 0
3 years ago
Read 2 more answers
If you substitute 12 + 2x for y in the second
vladimir2022 [97]
No second equation provided.
4 0
3 years ago
Read 2 more answers
Please solve this question
boyakko [2]

Answer:

Gud morning friend

Step-by-step explanation:

Sorry friend I don't know

7 0
2 years ago
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