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lawyer [7]
2 years ago
10

if the width of a football field is (x-3) and the length is (4x-3), what is the area? need before 1:40 on 3-19-2021

Mathematics
1 answer:
Marrrta [24]2 years ago
7 0

Answer:

4x² - 15x + 9

Step-by-step explanation:

To find the area of a rectangle, you multiply the length by the width.

length: 4x - 3

width: x - 3

Multiply these expressions.

(4x - 3)(x - 3)

To multiply two binomials, you want to FOIL them

FOIL: first | outer | inner | last

(4x - 3)(x - 3)

F: 4x • x = 4x²

O: 4x • -3 = -12x

I: -3 • x = -3x

L: -3 • -3 = 9

Combine these values.

4x² - 12x - 3x + 9

Combine the variables that can be combined.

4x² - 15x + 9

This is the area as an expression.

Hope this helps!

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Which of the following points are on the line given by the equation y equals 2x?
Rina8888 [55]

Answer:

(5,10)

(3,6)

Step-by-step explanation:

The equation y=2x means that 2 multiplied by the first value would equal the second value, so this means that the second value is twice as much as the first value.  This is not true for the first option because 8 is not twice of 16, and this is the same for (4,6), (4,2), and (1,3).  Therefore (5,10) and (3,6) work.

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A 5-pack of raffle tickets costs $15.55. What is the unit price?
DochEvi [55]

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8 0
2 years ago
Lucas works for a salary of $2,396 per month. His deductions include $360 of federal income tax, $148 for Social Security, $35 f
lana [24]

Answer:

Lucas monthly net pay is $1758

Step-by-step explanation:

Lucas works for a salary of $2,396 per month.

His deductions include $360 of federal income tax,

$148 for Social Security,

$35 for Medicare, and

a $95 insurance premium.

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2396 - 360 - 148 - 35 - 95 = 1758

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<u>-TheUnknownScientist</u>

7 0
3 years ago
What are the domain and range of f(x) = 2x - 41?
Darina [25.2K]

The domain of the function is a (-∞, 0) and the range of the function will be f(x) < 0. Then the correct option is C.

<h3>What are domain and range?</h3>

The domain means all the possible values of x and the range means all the possible values of y.

The function is given below.

f(x) = 2x – 41

Then the domain of the function is a (-∞, 0) and the range of the function will be f(x) < 0.

Then the correct option is C.

More about the domain and range link is given below.

brainly.com/question/12208715

#SPJ1

3 0
2 years ago
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