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Verdich [7]
2 years ago
5

(5x2 + 2x + 11) - (7 + 4x - 2x2)

Mathematics
2 answers:
Afina-wow [57]2 years ago
7 0
Your answer should be D!
storchak [24]2 years ago
6 0
The answer is 7x^2 - 2x + 4, so answer D. 
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there are 103 students eating lunch in the cafeteria. each table seats 4 students. all the tables are full except for 1 table. h
natta225 [31]
4*25= 100. There are 26 tables. At each of the 25 tables 4 people are sitting. Which means 100 people are sitting in complete tables of 4 people. That means that at the 26th table 3 people are sitting. 103-100= 3. Hope that helps. :) 
6 0
3 years ago
Read 2 more answers
The cone and cylinder above have the same radius, r, and height, h. The volume of the cone is 69 cubic centimeters. What is the
MatroZZZ [7]

Answer:

207 cubic centimeters

Step-by-step explanation:

Given

volume of cone  = 9 cubic centimeters

Since the cone and cylinder above have the same radius, r, and height, h, then r = h

volume of the cone = 1/3πr²h

69 =  1/3πr²h

πr²h = 69*3

πr²h = 207cubic cm

Since the volume of the cylinder =  πr²h

Hence volume of the cylinder is 207 cubic centimeters

8 0
2 years ago
#4.... i have no idea what to do for this
Stells [14]
<span>Perpendicular bisector is a<span> line which cuts a line segment into two equal parts at 90°  </span>⇒ 
MN ⊥ BC
BM = CM</span>

6 0
3 years ago
Simplify expressions 2y(y+3)+4y(y-1)
svlad2 [7]
Answer:

6y^2+2y

Step by step explanation:

2y*(y+3)+4y*(y-1)

Distribute 2y through the parentheses

2y^2+6y+4y*(y-1)

Distribute 4y through the parentheses

2y^2+6y+4y^2-4y

Collect like terms

6y^2+6y-4y

Collect like terms

6y^2+2y

Answer

6y^2+2y



6 0
1 year ago
Read 2 more answers
How to solve ? [3x+4]+1=7
Vinil7 [7]

to solve this we need to isolate the x variable.

subtract 1 from each side: [3x+4] = 6

now we can drop the parentheses and subtract 4 from each side: 3x = 2

divide each side by 3: x = 2/3

6 0
3 years ago
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