Show that, t for any triangle ABC, even if B or C is an obtuse angle, a = b cos C + c cos B. Use the Law of Sines to deduce the "addition formula" sin (B + C) = sin B cos C + sin C cos B.

b

step-by-step explanation:

ez

i'm not entirely sure

step-by-step explanation:

if you ask home depot or lowe's they might be able to you out

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt