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kifflom [539]
3 years ago
10

Find the number that belongs in the green box.Round your answer to the nearest tenth​

Mathematics
2 answers:
Umnica [9.8K]3 years ago
5 0

Answer:

134.5 degree

Step-by-step explanation:

first find the remaining side of a triangle

BY using cosine rule

C^2=A^2+B^2-2ABcosx

apply square root both sides

√c^2 =√[4^2+10^2-2(4)(10)cos29]

C=√(116-69.96958)

C=√46.03

C=6.8

Now find angle using cosine rule

C^2=A^2+B^2-2ABcosx

10^2=4^2+6.78^2-2(4)(6.78)cosx

100=16+45.9684-54.24cosx

100=61.9684-54.24cosx

100-61.9684=-54.24cosx

(38.0316)/-54.24=(-54.4cosx)/-54.24

-0.70117=cosx

X= cos inverse of -0.70117

x=134.5 degree

erastova [34]3 years ago
4 0

Answer:

as below

Step-by-step explanation:

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4 years ago
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4 years ago
For a given input value b, the function f outputs a value a to satisfy the following equation. 4a+7b=−52 Write a formula for ) f
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Answer: Our required formula becomes :

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Step-by-step explanation:

Since we have given that

4a+7b=-52\\

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For what values of k the relation R:{(k2 , 5), (3k, 6)} is not a function?
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Explanation:

If you have repeated x values, then you wont have a function. For example, the points (1,5) and (1,6) mean we don't have a function since the input x = 1 leads to multiple outputs y = 5 and y = 6 simultaneously. For a function to be possible, we must have any input lead to exactly one output only.

What we do is set the x coordinates (k^2 and 3k) equal to each other and solve for k

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