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Bumek [7]
3 years ago
8

Help Review of linear pair vertical and complementary

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
7 0

Answer:

x = 15

Step-by-step explanation:

The two angles form a straight line so they add to 180 degrees

3+6x   + 5x+12 = 180

Combine like terms

11x+15 = 180

Subtract 15 from each side

11x+15-15 =180-15

11x = 165

Divide by 11

11x/11 =165/11

x =15

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The perimeter of a scalene triangle is 14.5 cm. The longest side is twice that of the shortest side. Which equation can be used
Lady_Fox [76]
Perimeter is the sum of all sides of a polygon. For this case, the perimeter is expressed as: P=a+b+c. It has been said that the longest side is twice that of the shortest side. Let's assume that a is the longest side and b is the shortest side. So, the equation for the shortest side is,

6.2 = 2c
c = 3.1

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<span>14.5 = 9.3 +b</span>
5 0
3 years ago
Read 2 more answers
Evaluate a+b for a=2 and b=3
hoa [83]

Answer:

5

Step-by-step explanation:

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8 0
3 years ago
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Solve for y <br><br> 5y- 10x = 45
nasty-shy [4]

Answer:

y=9 (x=-4.5)

Step-by-step explanation:

you have to split the equation up in order to solve

5y=45

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6 0
3 years ago
What is the product?<br> (-2a² + s) (5a^2 - 6s)
DerKrebs [107]

Answer:

10a²+17a²s-6s²

Step-by-step explanation:

(-2a²+s)(5a²-6s)

= -10a²+12a²s+5a²s-6s²

= -10a²+17a²s-6s²

4 0
3 years ago
el cobre tiene un punto de ebullicion de 2595°C y su temperatura de fusión es de 1083°C ¿cuál es la diferencia de temperaturas e
Vladimir79 [104]

Answer: 1512°C

Step-by-step explanation:

I will answer this in English:

The data we have: The boiling point is 2595°C and the fussion point is 1083°C

the difference between those points is equal to the direct difference between the temperatures:

Diff = 2595°C - 1083°C = 1512°C

5 0
4 years ago
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