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Mama L [17]
3 years ago
15

multiply (x - 2)(3x + 4) using the dstributive proprty. select the answer choice showing the correct distribution

Mathematics
1 answer:
erastova [34]3 years ago
7 0

Answer:

(x-2)(3x+4)=3x^{2}-2x-8

Step-by-step explanation:

The concept of <em>distributive property</em> is used in the field of algebra. It is one of the properties of multiplication that is applied with respect to a sum or a subtraction. This property indicates that two or more terms present in a sum or subtraction multiplied by another quantity, is equal to the addition or subtraction of the multiplication of each of the terms of the addition or subtraction by the number.

In other words: a number multiplied by the sum of two addends is identical to the sum of the products of each of the addends by that number.

Solving:

(x-2)(3x+4)=x(3x+4)-2(3x+4)\\(x-2)(3x+4)=3x^{2} +4x-6x-8\\(x-2)(3x+4)=3x^{2}-2x-8

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What is the correct answer?
Valentin [98]

Answer:

Square Root of 384

Step-by-step explanation:

8 0
3 years ago
A square ceiling has a diagonal of 23 ft. Shelton wants to put molding around the perimeter of the ceiling. The molding is sold
Hatshy [7]

Answer:

Minimum 66 feet of molding that he needs.

Step-by-step explanation:

Given that a square ceiling has a diagonal of 23 ft.

If the sides of the square ceiling are 'a' feet, then applying Pythagoras Theorem we can write, a² + a² = 23²

⇒ 2a² = 23²

⇒ a = 16.2634 feet (Approximate)

Now, the perimeter of the square ceiling will be 4a = 65.05 feet.

If the cost of molding along the perimeter of the ceiling is in per foot, then a minimum of 66 feet of molding that he needs. (Answer)

6 0
3 years ago
Read 2 more answers
Please answer this correctly
stira [4]

Answer:

10 people

Step-by-step explanation:

Count the x's for more than 1 scarf, which is 2 or 3 scarfs

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3 0
3 years ago
What value does each equation need to be multiplied by in order to eliminate the y terms equation 1 6x-5y=-4 equation 2 4x+2y=28
Alex777 [14]
In order to eliminate the y term, you need to find what y is equal to in the equation.
1. 6x-5y=-4
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Y=6/5x+4/5
You then sub in 6/5x+4/5 in for y in the equation
2. 4x+2y=28
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Hope this helps!
5 0
3 years ago
A comet travels at an average speed of 233,000 km/h.
mixer [17]

Answer:

39,144,000 km

Step-by-step explanation:

Hi there!

Distance traveled = time * speed

Given speed: 233000 km/h

Given time: 7 days

It's important to note that our speed is given in per hours and out time is given in days. So in order to find how far the comet has traveled we must convert days to hours.

There are 24 hours in 1 day.

So to convert days to hours simply multiply amount of days by 24

24 * 7 = 168

So the comet has traveled for 168 hours

Now we can find distance traveled

Once again distance traveled = time * speed

Given speed is 233000 km/h

Given time is 168 hours

Distance = 168 * 233000 = 39,144,000

So the comet has traveled for a total distance of 39,144,000 km

3 0
3 years ago
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