1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yawa3891 [41]
2 years ago
14

A library building is in the shape of a rectangle. Its floor has a length of (3x + 5) meters and a width of (5x − 1) meters. The

expression below represents the area of the floor of the building in square meters:
(3x + 5)(5x − 1)

Which of the following simplified expressions represents the area of the floor of the library building in square meters?

28x − 5
15x2 − 5
15x2 + 28x − 5
15x2 + 22x − 5
Mathematics
1 answer:
AleksAgata [21]2 years ago
7 0
The problem says that the expression (3x + 5)(5x − 1) <span>represents the area of the floor of the building in square meters. Therefore,  to solve this problem you have to follow the proccedure shown below.

 1. First, to simplify the expression (3x + 5)(5x − 1) you must apply the distributive property. Then, you obtain:

 15x</span>²-3x+25x-5

 2. Then, you have:

 15x²+22x-5

 3. As you can see, the correct answer is the last option:  15x²+22x-5
You might be interested in
This is really hard for me can someone please help<br> This gives me a headache trying to do it
Papessa [141]
1. 3x-5<19 
    3x-5+5<19+5
    3x<24
    3x/3<24/3
    x<8

2. -2x+12<-4
    -2x+12-12<-4-12
    -2x<-16
    -2x/-2>-16/-2
       x>8

3. Because the numbers are positive when divided.

4. The inequality sign is reversed because the 2nd to last step is divided by by a negative number. (This is also the same for multiplication)
 
5. -7d+8>29
    -7d+8-8>29-8
    -7d/7>21/-7
       d>-3

6.12-3b<9
   12-12-3b<9-12
    -3b/-3>-3/-3
        b>1

7.z/7-6=>-5
   z/7-6+6=>-5+6
   z/7*7=>1*7
       z=>7                                      (what grade are you in?!)
8 0
3 years ago
5/3 rewrite fraction with a denominator of 12​
abruzzese [7]

Answer: 20/12

Step-by-step explanation: In order to get a 12 in the denominator

of 5/3, we multiply top and bottom of 5/3 by 4 to get 20/12.

So 20/12 is an equivalent fraction.

6 0
2 years ago
What is the value of x in the equation 2.5 minus 0.25 x = negative 3
Dafna11 [192]

Answer:

-22

Step-by-step explanation:

4 0
3 years ago
What product is greater than 3/5
spayn [35]

Answer: 4/6+4/6 is 8/12 and bigger than 3/5

Step-by-step explanation:

6 0
1 year ago
Read 2 more answers
Help help ASAP! Can someone help me with the answer!
Monica [59]

Answer:

-2x - 8

Step-by-step explanation:

Combine like terms

-5x - 7x = -2

Therfore you have

-2x - 8

5 0
3 years ago
Other questions:
  • Please help me with this
    12·1 answer
  • Blake and his children went into a bakery and where they sell donuts for $1.50 each and cookies for $0.50 each. Blake has $15 to
    6·1 answer
  • What is the cosine ratio for angle F?
    14·2 answers
  • An ice cream cone has a radius of 1.5 inches and a height of 5 inches.
    9·1 answer
  • What is th range of the function?
    7·1 answer
  • 4. Ryan bought a large case of water bottles for twenty dollars to sell at UofL football games. If he sells them for $1.50 each,
    5·1 answer
  • Write the equation y+5=-10(x-1) into standard form
    10·1 answer
  • Find the inverse of the following
    5·2 answers
  • Earning Commission<br> Sales Commision Rate Commission<br> $450<br> 6%<br> ?<br> The commission is ?
    8·1 answer
  • What is the additive inverse of the complex number –8 3i? –8 – 3i –8 3i 8 – 3i 8 3i
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!