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3 years ago

Could you please help me out I think that answer is c

Mathematics

1 answer:

Stella [2.4K]3 years ago

6 0

Answer:

$y^2=9^2+19^2-2(9)(19)cos(41)$

Step-by-step explanation

That is the one that is correct.

In the picture attached, the angle is in the middle of side C, so the ecuation should be,

$c^2=a^2+b^2-2(a)(c)cos()$

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Evaluate the expression if a=2,b=-3,C=-1, and D=4<br><br><br> -2(b^2-5c)

Alenkasestr [34]

$\qquad \qquad \bf \huge\star \: \: \large{ \underline{Answer} } \huge \: \: \star$

Equivalent value = -28

$\textsf{ \underline{\underline{Steps to solve the problem} }:}$

$\qquad❖ \: \sf \: - 2( {b}^{2} - 5c)$

( put the values )

$\qquad❖ \: \sf \: - 2 \{( - 3) {}^{2} - 5( - 1) \}$

$\qquad❖ \: \sf \: - 2(9 - (- 5))$

$\qquad❖ \: \sf \: - 2(9 + 5)$

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$\qquad \large \sf {Conclusion} :$

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