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3 years ago

a rectangle has a length of 12 and an unknown width x. write expression for the permeter and area of rectangle

Mathematics

1 answer:

svet-max [94.6K]3 years ago

7 0

If the width is literally x then:
12(2)+2(x)
24+2x is the perimeter

12(x)
12x is the area

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X plus 1/3 equals nine enter your answer in the box in simplest form

LekaFEV [45]

$= > x + \frac{1}{3} = 9$

$\text{Add} \: - \frac{1}{3} \: \text{ on both sides ,}$

$= > x + \frac{1}{3} - \frac{1}{3} = 9 - \frac{1}{3} \\ \\ \\ \\ = > x = \frac{(9 \times 3) - 1}{3} \\ \\ \\ \\ = > x = \frac{27 - 1}{3} \\ \\ \\ \boxed{ \bold{= > x = \frac{26}{3} }} \\ \\ \\ or , \boxed{ \bold{ \: x = 8. \bar{6}}}$

Hence,

$Value \: \: \: of \: \: x \: \: is \: \frac{26}{3} \: \: \: or \: \: \: 8. \bar{6}$

5 0

3 years ago

You decide to put new carpet in your living room and family room. The combined square footage (area) of both rooms is 535 square

avanturin [10]

Answer:

The maximum square footage of the family room is 225 square feet.

Step-by-step explanation:

From statement we know the combined area and the area of the living room, the maximum area of the family room is determined by subtracting the area of the living room from the combined area. All areas are measured in square feet:

$A = 535\,ft^{2}-310\,ft^{2}$

$A = 225\,ft^{2}$

The maximum square footage of the family room is 225 square feet.

5 0

3 years ago

What is the simplified form of the expression square root of -64

RSB [31]

What is the simplified form of the expression square root of -64

we have

$\sqrt[]{-64}$

Remember that

64=2^6

and

i^2=-1

substitute

$\sqrt[]{-64}=\sqrt[]{(-1)(2^6)}=\sqrt[]{i^2\cdot2^6}=2^3i=8i$ <h2>option B</h2>

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1 year ago

What are the benefits of having a quadratic function in standard form ?

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3 years ago

GRADE 11 MATH

Romashka-Z-Leto [24]

The amount that was invested 17 years ago is $2064.25.

The interest earned is $7935.75.

<h3>What is the amount invested 17 years ago?</h3>

The formula that would used to determine the amount that was invested 17 years ago is:

P = FV / (1 + r)^nm

Where:

FV = Future value = 10,000
P = Present value
R = interest rate = 9.5 / 2 = 4.75%
m = number of compounding = 2
N = number of years = 17

10,000 / (1.0475)^(17 x 2) = $2064.25

Interest earned = 10,000 - 2064.25 = $7935.75

To learn more about future value, please check: brainly.com/question/18760477

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4 0

2 years ago