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Natalka [10]
3 years ago
7

What is the value of n? Write your answer as a number only

Mathematics
1 answer:
GalinKa [24]3 years ago
5 0

Answer:

45

Step-by-step explanation:

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It's really hard for me to understand what they are asking.​
Gekata [30.6K]

Answer:

B is the correct answer

Step-by-step explanation:

Angles 1, 2, and 3 added together should make 180 degrees.

So, if angle 2 is 70 degrees, you subtract 70 from 180 (180-70=110) and you're left with 110 degrees.

Angle 1 and 3 add together should make 110 degrees which makes B the only true statement.

3 0
3 years ago
The length of a rectangle is two more than two times its width. The perimeter of the rectang
sattari [20]

Answer:

a

Step-by-step explanation:

8 0
3 years ago
1, 3x-2=5(2x+1)<br>Please answer this question ​
Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

3x -2=5(2x+1)

3x-2=10x+5

10x-3x=-2-5

7x=-7

x=-1

6 0
2 years ago
Help on these precalc problems 14-20
Nadya [2.5K]
15) factor out cos: cos(x)(sin(x)+1)=0
Now this is true when either cos(x)=0 (x=pi/2 and 3pi/2)
Or when sin(x)=-1 (x=3pi/2)
So it's solutions are pi/2 and 3pi/2
7 0
3 years ago
HURRY PLZ!!!
nasty-shy [4]

Answer:

D) no solution

Step-by-step explanation:

1/ (x-2) + 1/(x+2) = 4/(x^2-4)

x cannot equal 2 or -2 since that would make our fractions equal 1/0 or be undefined

Factor the term on the right

1/ (x-2) + 1/(x+2) = 4/(x-2)(x+2)

Multiply both sides by (x-2) (x+2)

(x-2) (x+2) (1/ (x-2) + 1/(x+2)) = 4/(x-2)(x+2)*(x-2) (x+2)

Distribute

x+2 + (x-2) = 4

Combine like terms

2x = 4

Divide by 2

2x/2 = 4/2

x =2

But this is not a possible solution since that is not in the domain

6 0
3 years ago
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