B: –3a^2 + 11a + 5
C: 3a^2 + 11a + 5
D: –3a^2 + 11a – 5
Answer: B = –3a^2 + 11a + 5
For difference, the answer is
-3a^2 -5a -5
Step-by-step explanation:
(3a – 3a^2) + (5 + 8a)
To find the sum or difference, we will open the brackets.
To look for l the sum, we add
3a – 3a^2 + 5 + 8a
Collecting like terms,
= -3a^2 +8a + 3a +5
= -3a^2 + 11a + 5
Option B is the right answer.
To look for the difference, we subtract.
(3a – 3a^2) - (5 + 8a)
Opening the brackets
3a – 3a^2 - 5 - 8a
Collecting like terms
-3a^2 + 3a -8a -5
= -3a^2 -5a -5
The options available corresponds only to what we got for the sum, so
-3a^2 + 11a + 5 is the answer
1.) Remove parentheses.
3a−3a^2 +5+8a
2.) Collect Like Terms.
(3a+8a) - 3a^2+5
3.) Simplify.
11a - 3a^2+5
Answer:
Step-by-step explanation:
There are 950 students at Hanover High School. The ratio of the number of freshmen to all students is 3:10. This means that the number of freshmen is 3/10 × total number of students.
Number of freshmen = 3/10×950 =285 freshmen
The ratio of the number of sophomore to all students is 1:2. This means that the number of sophomore is 1/2 × total number of students.
Number of sophomore = 1/2×950 =475 sophomore
The ratio of the number of freshmen to sophomore is the number of freshmen/ the number of
sophomore.
It becomes 285/475 = 57/95
Answer:
The distance between A and B is 2.6
Step-by-step explanation:
We know that there are 2 whole numbers from -1 to 0 and 0 to 1. Then we can add the 0.3 from both sides. 0.3 plus 0.3 is 0.6.
I hope this helped and if it did I would appreciate it if you marked me brainliest, thank you and have a nice
day
Answer:
27 cm or 2in and 6cm!
Step-by-step explanation:
count the lines.