Tabitha wants to hang a painting in a gallery. The painting and frame must have an area of 58 square feet. The painting is 7 feet wide by 8 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?


answer choices:

x^2 + 15x - 2 = 0
x^2 + 15x + 58 = 0
4x^2 + 30x - 2 = 0
4x^2 + 30x + 58 = 0
The table below shows the values of f(x) and g(x) for different values of x. One of the functions is a quadratic function, and the other is an exponential function. Which function is most likely increasing exponentially?

answer choices:
f(x), because it eventually exceeds g(x)

g(x), because it eventually exceeds f(x)

f(x), because it eventually intersects g(x)

g(x), because it will not intersect f(x)

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Step-by-step answer

10.05.2023, solved by verified expert
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Answer:

4x^2 + 30x - 2 = 0
g(x), because it eventually exceeds f(x)

Step-by-step explanation:

Q2: 

Here the area of the painting and frame = (2x+7)*(2x+8) = 4x^2 + 30x + 56, which is equal to 58 square units. 

Thus, 4x^2 + 30x + 56 = 58 

Therefore, 4x^2 + 30x + 56 - 58 = 0 

The correct answer is: 

4x^2 + 30x - 2 = 0

Q3: Here g(x) is exponential function because in g(x) the rate of increasing is fast. 

Therefore, the correct answer is 

g(x), because it eventually exceeds f(x)

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Faq

Mathematics
Step-by-step answer
P Answered by PhD
If the total area of the painting and the frame is 58 sq ft, we have the equation:
(8 + 2x)(7 + 2x) = 58

Expanding the equation,
56 + 30x + 4x^2 = 58

Combining like terms and arranging the equation, we have:
4x^2 + 30x - 2 = 0

Therefore, the answer is
C. 4x2 + 30x − 2 = 0
Mathematics
Step-by-step answer
P Answered by Master

4x² + 30x - 2 = 0

Step-by-step explanation:

Given:

Area = 58 square feet

Width = 7 feet

Length = 8 feet

Since the area is 58, writing the equation, we have:

(8 + 2x)(7 + 2x) = 58

Now expand the equation:

56 + 16x + 14x + 4x² = 58

56 + 30x + 4x² = 58

Collect like terms:

30x + 4x² + 56 - 58 = 0

30x + 4x² - 2 = 0

Rearrange the equation to a proper quadratic equation:

4x² + 30x - 2 = 0

The quadratic equation that can be used to determine the thickness of the frame, x is 4x² + 30x - 2 = 0

Mathematics
Step-by-step answer
P Answered by Specialist
The quadratic equation would be;
x2+15x-2=0

Working:
Assuming the area around the painting i.e the frame, has a uniform thickness, then;
Length of painting and frame = 8+x
Breadth of painting and frame= 7+x

The area from above step gives;
 A= LxW
A= (8+x)(7+x)
On expanding, 56+8x+7x+x2
On simplifying,
56+15x+x2. This should be equal to 58.
58=x2+15x+56
Taking 58 to the other side,
x2+15x-2=0
Mathematics
Step-by-step answer
P Answered by PhD

SI=(P*R*T)/100

P=2000

R=1.5

T=6

SI=(2000*1.5*6)/100

=(2000*9)/100

=180

Neil will earn interest of 180

Mathematics
Step-by-step answer
P Answered by PhD

Cost of 7 gallons=$24.50

Cost of 1 gallon=24.50/7=3.5

Cost of 15 gallons=15*3.5=52.5

Cost of 15 gallons will be $52.5

Mathematics
Step-by-step answer
P Answered by PhD

For 1 flavor there are 9 topping

Therefore, for 5 different flavors there will be 5*9 choices

No of choices= 5*9

=45 

Mathematics
Step-by-step answer
P Answered by PhD

The solution is in the following image

The solution is in the following image
Mathematics
Step-by-step answer
P Answered by PhD

F=ma

where F=force

m=mass

a=acceleration

Here,

F=4300

a=3.3m/s2

m=F/a

    =4300/3.3

    =1303.03kg

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