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Vesna [10]
3 years ago
12

For what value of b in the equation (2z + b)(z − 3) = 0 will a solution for z be −4?

Mathematics
1 answer:
bazaltina [42]3 years ago
7 0
( - 8 +  b )( - 4 - 3 ) =  0;
( - 8 + b )( - 7 ) = 0 ;
-8 + b = 0;
b = 8.
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What is the length of missing side JK? Round Answer to nearest tenth please.
zvonat [6]

Given:

Triangle LJK.

LJ = 89 in, LK = 28 in and m∠L = 42°

To find:

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Solution:

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Using law of cosine:

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Substitute the given values.

l^{2}=28^{2}+89^{2}-2 \cdot 28 \cdot 89 \cdot \cos 42^\circ

l^{2}=784+7921-4984 \cdot (0.7)

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l^{2}=784+7921-3703.6

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Taking square root on both sides.

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The length of the missing side is 70.7 in.

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Answer:

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I need help ASAP
GaryK [48]

Answer:

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