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
Vikki [24]
3 years ago
10

A sheet of metal is 9 inches longer than it is wide, and its total area is 252 square inches. Find the dimensions of the sheet o

f metal.
If w represents the width of the metal sheet, which of the following equations is a model for the given word problem?


A.
(3, –7)
B.
(–2, 7) and (3, –3)
C.
(3, 3)
D.
(2, 7) and (3, 9)
Mathematics
1 answer:
erastova [34]3 years ago
7 0
(9+w)w=252 or w(w+9)=252.
The quadratic equation applies: w²+9w-252=0=(w+21)(w-12), so w=12, because a negative zero is meaningless.
So the dimensions are width=12 in and length=21 in.
You might be interested in
Which number completes the square to form a perfect square trinomial?<br> x2 +12x +
Lady bird [3.3K]

Answer:

36

Step-by-step explanation:

(x + 6)(x+6)

F.O.I.L.

x^2 +6x + 6x + 36

X^2 + 12x + 36

4 0
3 years ago
Read 2 more answers
The Louvre museum in France has a glass pyramid in front. The sides measure 114 feet and it reaches a height of 71 feet. How man
enot [183]

Answer:

307,572\ ft^{3}

Step-by-step explanation:

we know that

The volume of a pyramid is equal to

V=\frac{1}{3}Bh

where

B is the area of the base of the pyramid

h is the height of the pyramid

Find the area of the base B

B=114^{2}=12,996\ ft^{2}

we have

h=71\ ft

substitute the values

V=\frac{1}{3}(12,996)(71)=307,572\ ft^{3}

6 0
4 years ago
If you flip three fair coins, what is the probability that youll get all three heads
Leona [35]

Answer:

12.5

Step-by-step explanation:

100/2=50/2=25/2=12.5

8 0
3 years ago
Help plz i rly need it ahahah
victus00 [196]

Answer:

I'm sorry i''m positive i can answer this but i have to see the image to do so

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Item 20 You are riding a roller coaster when a shoe falls off your foot. The function y=200−16t2 represents the height y (in fee
AleksandrR [38]
Assuming you mean y = 200 - 16t^2, we have all the required information needed to solve this problem. The y-value is the height of the building and the t-value represents the number of seconds after the shoe fell off.

Since we are trying to solve <em>for t</em>, we will be using our y-value. The problem states that we landed on a building with a height of 31 feet. We can plug this into the y-value, since that is what y is defined as (the height of the building).

Now we have:
31 = 200 - 16t^2

We can solve this to find t:
-169 = -16t^2
169 = 16t^2
10.5625 = t^2
3.25, -3.25 = t

We have found two answers for t. However, the negative value is not a solution because we can not have a negative number of seconds. Thus, 3.25 is the only value of t which works for this problem.

Since t is the value we are trying to find, we have our answer. The shoe hits the building after 3.25 seconds.
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the answer to these just put 1.....<br> 2.... and so on
    10·2 answers
  • Use the order of operations to simplify the following expression. Express your answer in simplest form
    10·1 answer
  • What are the solutions of 3(x-4)(2x-3)=0 check all that apply
    13·2 answers
  • What is 27.3375% as a fraction?
    12·2 answers
  • A set of two numbers used to locate a point in a coordinate plane is called
    15·2 answers
  • HELP PLEASE I NEED THE ANSWER<br> find x
    6·1 answer
  • 25% of what number equals 10?
    7·1 answer
  • Y = (x + 2)(x − 3)<br> Find the zero of the function
    6·1 answer
  • How do you do this ​
    10·1 answer
  • 5r-8=9r-12 answer this plsss
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!