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LUCKY_DIMON [66]
3 years ago
14

Evaluate the expression begin expression . . . 2 times n, times, the quantity n minus 1 . . . end expression, when n = 3 . A 11

B 12 C 17 D 18
Mathematics
1 answer:
arsen [322]3 years ago
6 0

Answer:

B (12)

Step-by-step explanation:

The expression can be written as the following:

(2n)(n-1)

Let n=3

(2*3)(3-1)=(6)(2)=12

So the answer is B (12).

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Find the equation of the line that is perpendicular to 3x + 2y = -2 and goes through the point (6,2)
notka56 [123]
Perpendicular lines have slopes that are inverse reciprocals of each other. That would give you the new slope in your equation. After that plug (6,2) into point slope form and solve to get your final equation.

4 0
3 years ago
Your goal is to take at least 10,800 steps per day. According to your​ pedometer, you have walked 7370 steps. Write and solve an
faust18 [17]

Answer:

Step-by-step explanation:

Let the numbers of steps you can take to reach your goal be x

Your goal is to take at least 10,800 steps per day and you have walked 7370 steps already.

x + 7370 >= 10800

x >= 10800 - 7370

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3 0
3 years ago
Read 2 more answers
What is the solution(s) to the equation 5a2 - 44 = 81?
taurus [48]

Answer:

B

Step-by-step explanation:

5a^2 - 44 = 81                     Add 44 to both sides

5a^2 = 81 + 44                    Collect like terms

5a^2 = 125                          Divide both sides by 5

a^2 = 125/5                  

a^2 = 25                              Take the square root of both sides

√a^2 = √25

a = +5

a = -5

The answer is B

7 0
3 years ago
Find the area of a floor which is covered by 1050 tiles.each tiles measuring 20 square meters​
RoseWind [281]

Answer:

area of floor is

1050*20=21000

Step-by-step explanation:

mark me as brainliest

7 0
3 years ago
The coordinates of the vertices of triangles are listed in the options below. Which is a right triangle?
Kisachek [45]
<span>A(−3, 2), B(−4, −9), C(8, 1)
This is the right answer. 
The slope of AB is perpendicular to the slope of BC.</span>
5 0
3 years ago
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