1)Answer:
C) 8x² - 2
2) in the image above
Step-by-step explanation:
1)What is the area of the rectangle with the width of 2x - 1 and with the length of
(4x + 2)?
a. 8x² + 2
b. 8x³ - 2
c. 8x² - 2
d. 8x³ + 2
2)What is the simplified for of 7(-5y⁵)² ?
a. 176y¹⁰
b. 175y¹⁰
c. 176y²⁵
d. 178y¹⁵
No, Perry is not using the correct ratio, because 15:17 is not equivalent to 5:7
15 divided by 3 is indeed 5 but divided 17 by 3 does not give you 7, nor a whole number.
I hope this helps.
Answer:
(x+1)+(3x+1)+(2x+4)=180 (sum od all sode of a triangle is 180)
x+1+3x+1+2x+4=180
6x+6=180
6x=180-6
x=174/6
x=66
Answer: B. Controlled experiment
Step-by-step explanation:
This is a controlled experiment because the variables in the question are manipulated by the researcher. We are told that while one group watches television before going to sleep, the other group does not.
The controllers won't have control over the variables that were used if it was an observational study while for a survey, it has to do with collection of information regarding certain topics or happenings in order to have people's perception on the topic or area of interest.