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3 years ago

Which expression is equivalent to the following expression? 2(x + 7)

Mathematics

2 answers:

Lerok [7]3 years ago

6 0

Answer:

I believe the answer is (C) 2x+14.

You have to distribute the 2 and multiply it to the x and the 14.

Step-by-step explanation:

Multiply the x by the 2 to get 2x

multiply the 7 by the 2 to get 14

so the equation is: 2x + 14

I hope this is correct.

Kipish [7]3 years ago

4 0

Answer:

Step-by-step explanation:

Use distributive property. distribute the 2 into both numbers by multiplying them both by 2 and you get 2x + 14

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Find the area of the triangular prism for a chance to get brainlest

Oduvanchick [21]

Answer:

57.09

Step-by-step explanation:

8 0

2 years ago

In a doctor's waiting room, there are 14 seats in a row. Eight people are waiting to be seated. There is someone with a very bad

diamong [38]

Answer: 12,972,960

Step-by-step explanation: There are 14 chairs and 8 people to be seated. But among the 8. three will be seated together:

So 5 people and (3) could be considered as 6 entities:

Since the order matters, we have to use permutation:

¹⁴P₆ = (14!)/(14-6)! = 2,162,160, But the family composed of 3 people can permute among them in 3! ways or 6 ways. So the total number of permutation will be ¹⁴P₆ x 3!

2,162,160 x 6 = 12,972,960 ways.

Another way to solve this problem is as follow:

5 + (3) people are considered (for the time being) as 6 entities:

The 1st has a choice among 14 ways

The 2nd has a choice among 13 ways

The 3rd has a choice among 12 ways

The 4th has a choice among 11 ways

The 5th has a choice among 10 ways

The 6th has a choice among 9ways

So far there are 14x13x12x11x10x9 = 2,162,160 ways

But the 3 (that formed one group) could seat among themselves in 3!

or 6 ways:

Total number of permutation = 2,162,160 x 6 = 12,972,960

5 0

3 years ago

On what interval is the function h(f)=|x+2|-2 increasing ?

VLD [36.1K]

Answer:

The increasing interval is $S=(-2,\infty)$

Step-by-step explanation:

This absolute function has a vertex in x=-2. Now, from this point, the function has a positive slope (increasing), which means for values of x equals to -1,0,1,2,3,...,n.

Therefore the interval will

$S=(-2,\infty)$

I hope it helps you!

7 0

2 years ago

50-0 ———(12.0-0) +0 = 12.0-0 Just a warm up

vagabundo [1.1K]

$\frac{50}{12}$ x 12