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kolbaska11 [484]
3 years ago
9

Solve the triangle. A =52° , b = 10, c=7

Mathematics
1 answer:
tekilochka [14]3 years ago
3 0

Answer:

Step-by-step explanation:

Use the Law of Cosines:

a² = b² + c² - 2ab·cos A

Substituting the given values, we obtain:

a² = (10)² + (7)² - 2(10)(7)·cos 52°

    = 100 + 49 - 140·0.6157

     =      149 - 86.1926

     =    62.81

Taking the square root of both sides yields:

a = 7.925, or (to the nearest degree) 8

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XY=4x+7 and YZ=8x-1, Find XY
laiz [17]

Answer:

XZ = 12x + 6

Step-by-step explanation:

XZ = XY + YZ

XZ = <u>4x</u> + 7 + <u>8x</u> - 1

XZ = 12x + 6

5 0
3 years ago
Rewrite 1 / 6 barrels over 2 over 5 hours as a unit rate
Akimi4 [234]

Answer:

5/12 barrel/hour

Step-by-step explanation:

 Type this as a fraction:

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Division by 2/5 is equivalent to multiplication by 5/2:

1                5

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Alternatively, this problem could be done using decimal fractions:

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3 years ago
Which of the following expressions can be used to find the perimeter of the shape? All sides are the same length. A. 15 x 15. B.
umka21 [38]

Answer:

B and D

Step-by-step explanation:

This must be a six sided figure

A. 15 x 15.  This would be area

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6 0
4 years ago
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Determine f(x-1) f(x)=√x+6-8
docker41 [41]
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3 years ago
The point P=(3/4, y) lies on the unit circle. What is the value of y in simplest form?
laila [671]

Answer:

Step-by-step explanation:

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3 years ago
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