19) No, 3 should multiply both x and 2. As they, (x+2) are both inside the parentheses. The correct answer should be 3x + 6.
20) No, when it comes to exponents and multiply, exponents is done first before multiply. Therefore, Brett should square 3 first before multiplying it by 2. the correct steps should be
2 * 3^2 + 5
= 2* 9 + 5
=18 + 5
=23
Advice : use cy math.com on your computer
or photo math on your phone
Answer: 12
Step-by-step explanation: 6+6=12
Answer:
24 is the total number of students in Miss. Perrons class.
Step-by-step explanation:
you take 18 and divide by 75% (0.75) and you get 24
Length of OP= sqrt 10
Length of PQ= sqrt(t^2+2t+2)
Length of OQ= sqrt(t^2+16)
Using Pythagoras thorem,
10+ t^2+2p+2=t^2+16
t=2
