Answer:
Replace the 4 with a 3 to make the equation true
Answer:
IT WONT LET ME PUT IT AFTER I LITERALLY BEEPED OUT EVERYTHING ISTG
I need a picture I will answer the question if there is a picture
Answer:

Step-by-step explanation:
We will use the co-function identity for sine, where:

Since sin(21)=0.358=cos(x). This means that:

Solve for x. Add x to both sides:

Subtract 21 from both sides:

Hence:
