Show that sin (x+pi) = - sinx show all your work

A valid study a. portrays the population being studied. b. results in a causal relationship between the independent and dependent variables. c. measures what it is supposed to. d. verifies expected results. e. uses random sampling.

What is 35,124 to the nearest ten thousand?

You draw two cards from a well-shuffled deck of 52 cards. After you draw the first card, you do not replace it in the deck. What is the probability of P (get ace of spades on first draw and get queen of hearts second draw?

Riaz wants to use the number sentence shown to solve a problem. 12 : 3 = ? Which problem could be solved using this number sentence? A) A pet store has 12 cats. If 3 of them are sold, how many cats have not been sold? B) A key chain can hold 3 keys.

The number of students at a new art studio increases from 60 to 80 students from year to year. What is the growth factor for this art studio

1/7 of 14 equals to

How many times does 48 go into 132

Sequence number fill in the blanks: 2,?,?,?,?, 21

Alison had lost some puzzle pieces. She found 3/10 of them under the coffee table and another 4/10 of them under the couch. How much is she still missing?

Write 48 hundredths as a fraction and a decimal.