Brainliest and 20 points! But, you have to get it right!
2 answers:
Cosine = adjacent / hypotenuse
if cosine B = 255 / 257
then adjacent = 255
and hypotenuse = 257
sine = opposite / hypotenuse
sine (A) = 255 / 257
sine (A) = <span> <span> 0.9922178988 </span></span>
Looking up the arc sine of <span> <span> <span> 0.9922178988
</span></span></span><span><span><span>
</span></span></span><span><span><span /></span></span>we find that it is 82.847 Degrees
Angle A = 82.847 Degrees
if cosine B = 255 / 257
then adjacent = 255
and hypotenuse = 257
sine = opposite / hypotenuse
sine (A) = 255 / 257
sine (A) = <span> <span> 0.9922178988 </span></span>
Looking up the arc sine of <span> <span> <span> 0.9922178988
</span></span></span><span><span><span>
</span></span></span><span><span><span /></span></span>we find that it is 82.847 Degrees
Angle A = 82.847 Degrees
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Answer: 1.8 servings of soybean and 1.2 servings rice will be needed.
Step-by-step explanation:
Let x be the number of soybeans and y be the number of rice.
Then , According to the question , we have
Multiply 2 on both the sides of equation (2), we get
Subtract equation (2) from equation (3), we get
Put x = 1.8 in equation (2), we get
Hence, 1.8 servings of soybean and 1.2 servings rice will be needed.