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olya-2409 [2.1K]
3 years ago
12

Solve for x and y. Round to the nearest tenth if necessary.

Mathematics
1 answer:
statuscvo [17]3 years ago
7 0
4x + 2x = 90
x = 15

Tan (AngleA = 60) = y / 5
y = 1.7321 * 5
y = <span> <span> <span> 8.660</span></span></span>3

It seems the answer is D (though y = 8.66 and NOT 8.1)

DOUBLE-CHECK
That is a 30 60 90 triangle and 2 * shrt side = long side (AB)
so, y^2 = 10^2 -5^2
y^2 = 75
y = 8.66

So, it seems the answer is D
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35 points!! How much does a fish weigh if its tail weighs 4 kilograms, it's head weighs as much as it's tail and half its body,
NeX [460]

Let t, h, b represent the weighs of tail, head, and body, respectively.

t = 4 . . . . given

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4 0
3 years ago
Answers for math homework, thanks :)
QveST [7]
1) x = - 4, y = - 12; (- 4, - 12)

2) x = 34, y = 17; (34, 17)

3) x = 16, y = 7; (16, 7)

4) x = 7, y = - 4; (7, - 4)

5) x = - 4, y = 10; (- 4, 10)

6) x = 12, y = - 7; (12, - 7)

7) x = 5, y = 10; (5, 10)

8) x = 11, y = - 12; (11, - 12)
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