A national park had eighty-three thousand, four hundred twenty-two visitors last year. Which choice shows the number of visitors in expanded form?

83,422

Step-by-step explanation:

Eighty -three thousand-83,000

Four hundred twenty-two- 422

Togethher-83,422

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet