Simplify cos5cos40-sin5cos40

John received 3 detentions in the fourth quarter. He received 4 other detentions for 1st and 2nd quarters combined. He received 12 for the whole school year so how many detentions did he receive in the 3rd quarter?

Shelley spent 17 minutes washing the dishes. She spent 38 minutes cleaning her room. Explain how you can use mental math to find how long Shelley spent on the two task.

What is 8 divide by four fifths?

What r three rectangles with an area of 300 square feet?

The table below shows the movie preferences of high school and college students: Movie Preference Action Drama Comedy Row totals High School 40 23 12 75 College 20 51 28 99 Column totals 60 74 40 174 Julie mistakenly calculated the conditional

When does the line y = x - 10 cross the y-axis

To prove that ΔDEF ≅ ΔDGF by SAS, what additional information is needed?

Contestants in a dance a-thon rest for the same amount of time every hour. A couple rests for 21 minutes in 3 hours. How long did they rest in 8 hours? The couple rested minutes in 8 hours.

One of two numbers is five more than the other. the sum of the number is 17. Find the number

What is the distributive property To create an equivalent expression to 9X + 21