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Alex787 [66]
3 years ago
10

One attempt left!!

Mathematics
1 answer:
Vlada [557]3 years ago
7 0
B and c. You aren’t given any information about the segment so you can’t conclude anything about segments or segment bisectors.
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Solve the following equation: <br>(n + 1) + 3(n - 1) = 2(n - 1)(n + 1)​
Mnenie [13.5K]

Answer:

n = 0, n =2

Step-by-step explanation:

Given

(n + 1) + 3(n - 1) = 2(n - 1)(n + 1) ← distribute parenthesis on both sides

n + 1 + 3n - 3 = 2(n² - 1), that is

4n - 2 = 2n² - 2 ( subtract 4n - 2 from both sides )

0 = 2n² - 4n ← factor out 2n from each term )

0 = 2n(n - 2)

Equate each factor to zero and solve for n

2n = 0 ⇒ n = 0

n - 2 = 0 ⇒ n = 2

7 0
3 years ago
Write an expression for " x divided by nine".<br><br> Please help!!<br><br> 10 POINTS
Dmitriy789 [7]

Answer:

x/9

Step-by-step explanation:

x divided by 9

=> x ÷ 9

<em>Take that and turn it into a fraction</em>

=> x/9

hope this helps and is right. p.s. i really need brainliest :)

8 0
2 years ago
Read 2 more answers
If a globe rotates 150 degrees in 5 seconds, how many rotations does it make in 30 seconds? I got 900 seconds for my answer am I
Maksim231197 [3]

Start with a proportion, to get the number of degrees in 30 seconds:

         (150 degrees / 5 seconds) = ('D' degrees / 30 seconds) .

Cross multiply the proportion:  (150 x 30) = 5 x D

                                                     4,500  =  5 x D

Divide each side by  5 :                  900 = D

The globe turns 900 degrees in 30 seconds.

How many rotations is that ?
Each rotation is 360 degrees.
So 900 degrees is
                               (900 / 360) = <em>2.5 rotations</em> in 30 seconds.


8 0
3 years ago
A group of workers takes 3 and 3/8 days to plant 9 and 3/4 acres.
Nikolay [14]
2 8/9  acres per day in simplest form

3 0
3 years ago
The perimeter of an equilateral triangle is at most 72, what would this be as an inequality?
Reptile [31]

at most is either that number or less

 so x<=72 would be the inequality

6 0
3 years ago
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