How are parentheses used when grouping factors

There are values of t so sin t=0.3 and cos t=-0.6 true or false

Manuel's bus ride to school is 9/10 of a mile and Jessica's bus ride is 3/10 of a mile. How much longer is Manuel's bus ride than Jessica's? A) 6 0 of a mile B) 12 0 of a mile C) 6 10 of a mile D) 12 20 of a mile

Mrs. Samson asks her students to write an expression to represent "6 less than the product of 2 and a number." Which expression represents Mrs. Samson's description? A. 6 - 2x B. 2x - 6 C. 2 - 6x D. 2x - 6

Shining Star Preschool purchased a van for $38,000. Suppose MACRS allows vans to be depreciated fully in 6 years according to six fixed percents: 20% the first year, 32% the second year, 19.2% the third year, 11.52% the fourth and fifth years, and 5.

Classify the polynomial and state the degree. 2x - 3

Let f (x) = x^2 - 2x + 2 and g (x) = x - 3. find f (x) times g (x)

A survey found that 9 out of 100 people are left-handed. On the basis of this survey, how many people in a group of 8000 are likely to be left-handed? A. 900 B. 800 C. 720 D. 72

If 80% of an item is $200.00 what is the original cost

The volume of a closet is 36 cubic feet its height is 6feet and its length from to back is 2 feet. What is the width of the closet

What is the simplified form of 3 square root 135