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steposvetlana [31]
3 years ago
10

Someone help and solve for X

Mathematics
1 answer:
IgorC [24]3 years ago
7 0

Step-by-step explanation:

since all angles add up to 180:

(8x-1)+(3x+4)+(3x+9)=180

add like terms:

14x+12=180

x=12

Hope that helps :)

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Calcula el área de un rombo cuya diagonal mayor mide 10 cm y cuya diagonal menor es la mitad de la mayor.
attashe74 [19]

Respuesta:

25 cm²

Explicación paso a paso:

El área A de un rombo tiene:

A = pq / 2

Donde pyq son las diagonales

Tomando p como la diagonal más grande = 10 cm

Diagonal más pequeña, q = 1/2 * 10 = 5cm

Por lo tanto, el área del rombo es:

A = (10 * 5) / 2

A = 50/2

A = 25 cm²

5 0
3 years ago
Please I need help! I need to find the Cosine of A
OleMash [197]

Answer:

cos A = 12/13 = 0.9231

(angle A = 22.62°)

Step-by-step explanation:

cos A = 12/13 = 0.9231

3 0
3 years ago
Read 2 more answers
6) Find the measure of ∠G.
topjm [15]

Answer:

m<G = 71

Step-by-step explanation:

Find x first

7x + 1 + 6x - 6 + 55 = 180

Combine like terms:

13x + 50 = 180

      - 50    - 50

13x = 130

/13     /13

x = 10

Then apply to problem

7 (10) + 1

70 + 1

= 71

8 0
2 years ago
Read 2 more answers
julie usd 12 3/4 gallons of water on her garden on monday. she used 15 1/4 gallons of water on tuesday what is th total amount o
sdas [7]
12 3/4 + 15 1/4

12 + 15 = 27
3/4 + 1/4 = 4/4 or the same as 1
27+1=28

So the answer is Julie used 28 gallons of Water.
This problem has my name!!!!!!!!!!!!!

4 0
3 years ago
Read 2 more answers
Determine whether the relation is a function. -8, 0 -1, 5 4,10,11
11111nata11111 [884]
Vas happenin!


It’s a function because the Xs don’t repeat

Hope this helps

-Zayn Malik
6 0
3 years ago
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