Answer: 32760 ways.
Step-by-step explanation:
To solve this, we first determine the number of ways to select 4 countries from 15, we calculate number of ways to visit these 4 places then we multiply.
Selecting number of ways to choose 4 cities from 15 is by using the combination formula, which becomes 15C4
Number of ways to visit these 4 cities = 4!
Hence,total number of ways of visiting these 4 cities = 15C4 * 4! = 32760ways
The formula of a midpoint:

D is midpoint of TR.
We have T(-2a, 0) and R(-2b, 2c). Substitute:

<h3>Answer: b. (-a - b, c)</h3>
The final answer will be 72 square units.
Hope this helps !
Photon
x is strictly less than 2 or x ∈ (-∞, 2)
Given: inequality 5x - 7 < 2x - 1
What are inequalities?
Inequalities are statements that are represented as comparison between two or more numbers or algebraic expressions.(strictly less, strictly great, greater, lesser)
Solving the given equation:
5x - 7 < 2x - 1
=> 5x - 7 - 2x < 2x - 1 - 2x
=> 3x - 7 < -1
=> 3x - 7 + 7 < -1 + 7
=> 3x < 6
=> x < 2
Therefore, x is strictly less than 2.
Hence x ∈ (-∞, 2)
The number line is attached below.
Know more about "inequalities" here: brainly.com/question/20383699
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Disclaimer: The given question is incomplete. The complete question is given below.
Solve the inequality 5x - 7 < 2x - 1
On the number line, represent the solution
(number line -5 to 5)
Answer:
B
Step-by-step explanation:
if we solve it
10x-2x means 8x and -20+4 means -16...
and other answer are correct.
- 6x+2x=8x 11+5=+16 so....A is correct 8x+16
- 2(4x+8) .... multiply both numbers in bracket by two. 8x+16
- 8(x+2) multiply both numbers in bracket by eight.8x+16