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coldgirl [10]
3 years ago
15

**BRAINLIEST 20 POINTS****

Mathematics
1 answer:
konstantin123 [22]3 years ago
8 0

Answer:

1/2

Step-by-step explanation:

Cos 60 = \frac{adjacent}{hypotenuse}

1/2 = \frac{XZ}{4}

Multiplying both sides by 4

=> XZ = 2

Sin Y = \frac{opposite}{hypotenuse}

Sin Y = \frac{2}{4}

Sin Y = 1/2

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slavikrds [6]

18 = 10 + 2k

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18-10= 2k

8= 2k

divide by 2 to get k by itself

8/2= 2k/2

Cross out 2 and 2 , divide by 2 and then becomes 1*1*k= k

k=8/2

Answer: k= 4

7 0
4 years ago
Help help quick quick thanks
I am Lyosha [343]

Answer:

Factor

Step-by-step explanation:

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8 0
4 years ago
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aleksandr82 [10.1K]

Answer:

x = 7

Step-by-step explanation:

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Get the x's on one side and the integers on the other

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5 0
4 years ago
2r^6+11r^3-13 help me please!!!!!
kvasek [131]

Answer: (r-1)(r^2+r+1)(2r^3+13)

7 0
3 years ago
Simplify the following expression:$$(\sqrt{6} + \sqrt{24})^2$$
tresset_1 [31]

Answer:

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4 0
3 years ago
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