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STALIN [3.7K]
3 years ago
14

Plz help me I am so stuck

Mathematics
1 answer:
kifflom [539]3 years ago
4 0

This is called a proportion. The first step to solving a proportion is cross multiplication. Next, you need to set the to products equal to each other, and solve.

The correct answer is x=4/5, or x=0.8

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Thomas buys a cardboard sheet that is 12 by 8 inches. Create an equation for this situation, find the zeros, and sketch the func
Karo-lina-s [1.5K]
For the answer to the question above,

1. If we let x as the side of the square cut-out, the formula for the capacity (volume) of the food dish is:
V = (12 - 2x)(8 - 2x)(x)
V = 96x - 40x^2 + 4x^3
To find the zeros, we equate the equation to 0, so, the values of x that would result to zero would be:
x = 0, 6, 4

2. To get the value of x to obtain the maximum capacity, we differentiate the equation, equate it to zero, and solve for x.
dV/dx = 96 - 80x + 12x^2 = 0
x = 5.10, 1.57
The value of x that would give the maximum capacity is x = 1.57

3. If the volume of the box is 12, then the value of x can be solved using:
12 = 96x - 40x^2 + 4x^3
x = 0.13, 6.22, 3.65
The permissible value of x is 0.13 and 3.65

4. Increasing the cutout of the box increases the volume until its dimension reaches 1.57. After that, the value of the volume decreases it reaches 4.

5. V = (q -2x) (p - 2x) (x)
7 0
3 years ago
An item on sale costs 85% of the original price. The original price was $55.
son4ous [18]

Answer:

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Step-by-step explanation:

The amount the sale item costs now is 0.85($55) = $46.75.

That 85% is equivalent to 0.85.

7 0
4 years ago
Convert 212 degree Fahrenheit into degree Celsius<br>I will mark them as brainlists<br>​
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Answer:

The answer might be 100° c

5 0
3 years ago
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3 years ago
Multiple choice question
konstantin123 [22]

Answer:

b. g(x)=|x+3|-1

Step-by-step explanation:

7 0
3 years ago
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