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Gennadij [26K]
2 years ago
15

PLEASE HELP ALGEBRA 1

Mathematics
1 answer:
mina [271]2 years ago
6 0

Answer:

oo 678

Step-by-step explanation:

happy ino

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Step-by-step explanation:

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In 56 years,Kevin will be 9 times as old as he is right now . <br> How old is he right now ?
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8 0
3 years ago
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Use the Law of Cosines to find the missing angle. In triangle JKL, j=3in., k=4in., and l=2.89., find mJ
slega [8]
Using the law of cosine for Triangle KJL, we can write:

j^{2} = k^{2} + l^{2}-2(k)(l)cos(J)  \\  \\ &#10;2(k)(l)cos(J)=k^{2} + l^{2}- j^{2} \\  \\ &#10;cos(J)= \frac{k^{2} + l^{2}- j^{2}}{2(k)(l)}

Using the values of k,j and l, we can write:

cos(J)= \frac{ 4^{2} + (2.89)^{2} - 3^{2} }{2(4)(2.89)}  \\  \\ &#10;cos(J)= 0.664 \\  \\ &#10;J= cos^{-1}(0.664) \\  \\ &#10;J=48.39

Rounding to nearest integer, the measure of angle J will be 48 degrees.
So option B gives the correct answer
8 0
2 years ago
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10/002728182.2777272829 error
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