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riadik2000 [5.3K]
3 years ago
10

Can you help I’ll mark brainliest

Mathematics
1 answer:
Marta_Voda [28]3 years ago
6 0

Answer:

7\sqrt{3}

Step-by-step explanation:

Since this is a 30-60-90 triangle, we know that the sides have the following characteristic:

The side opposite to 30 degree angle: n

The side opposite to 60 degree angle: n\sqrt{3}

The side opposite to 90 degree angle: 2n

Since we know that 7 is opposite to 30-degree, and x is opposite to 60 degree, than we know that x = 7\sqrt{3}

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P l e a s e h e l p <br> (Only spaced it cus I needed 20 characters, danke)
GenaCL600 [577]

Answer:

y = 63

Step-by-step explanation:

A straight line is equal to 180 degrees.

180 = 2y - 18 + y + 9

180 = 3y -9

189 = 3y

189/3

y = 63

3 0
2 years ago
Read 2 more answers
the cost of an annual tuition at a university increased from 10,500 to 11,300 what is the percent increase in tuition to the nea
Maurinko [17]
Percent increase
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so
percent increase
change/original
origianal=10500
change=800
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percent means parts out of 100
0.0761/1 times 100/100=7.61/100=7.61%

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7.6%

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3 years ago
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svlad2 [7]

Answer:

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7 0
3 years ago
(k^2-6k^4)-(3k^4+k^2+2)
jeka57 [31]

Step-by-step explanation:

Vamos simplificar passo a passo.

k2-6k4-(3k4+k2+2)

Distribua o sinal negativo:

=k2-6k4+-1(3k4+k2+2)

=k2+-6k4+-1(3k4)+-1k2+(-1)(2)

=k2+-6k4+-3k4+-k2+-2

Combine os termos semelhantes:

=k2+-6k4+-3k4+-k2+-2

=(-6k4+-3k4)+(k2+-k2)+(-2)

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Responda:

=-9k4-2

7 0
3 years ago
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nikitadnepr [17]

Answer:

Step-by-step explanation:

It’s zero

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