Answer:
±2 sqrt(3) = x
Step-by-step explanation:
12 -x^2 =0
Add x^2 to each side
12 -x^2+x^2 =0+x^2
12 = x^2
Take the square root of each side
±sqrt(12) = sqrt(x^2)
We know that sqrt(ab) = sqrt(a) sqrt(b)
±sqrt(4*3) = sqrt(x^2)
±sqrt(4) * sqrt(3) = x
±2 sqrt(3) = x
If the polygon ABCD rotates 90° counterclockwise then every point rotates the same. The coordinates of C´ are: B) (-7,-2)
Answer:The total amount of money that the school will spend for tickets is $9900
Step-by-step explanation:
Tickets to a baseball game are 20 dollars for an adult and 15 dollars for a student. A school bus tickets for 45 adults and 600 students. This means that the total amount spent by the school on adult tickets is 20 × 45 = $900
The total amount spent by the school on students tickets is 15 × 600 = $9000
The total amount of money that the school will spend for tickets will be the sum of the amount spent on adult tickets and student tickets. It becomes
900 + 9000 = $9900
221.57
Explanation:
To round to the nearest tenth you would would look at the hundredths place. If it is higher than 5 you round the number in the tenth place up if it is lower than 5 you keep it the number in the tenth place the same. In this case you have 2 which is lower than 5 so you keep the 7 the same and bring everything else down.
Answer:
2a^2+a
Step-by-step explanation:
you can simplify a^2 into itself twice
