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Zepler [3.9K]
3 years ago
6

The length of a rectangle is 2 inches more than the width. The perimeter is 24 inches. Find the length and width

Mathematics
1 answer:
zimovet [89]3 years ago
5 0
Length = 7

Width = 5

7+7+5+5 = 24
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Find the measure Of PR
Misha Larkins [42]

Answer:

18

Step-by-step explanation:

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3 0
3 years ago
From a thin piece of cardboard 30 in. by 30 in., square corners are cut out so that the sides can be folded up to make a box. Wh
Brilliant_brown [7]

Answer:

Dimensions 5in x 10in x 10in will yeild a box with a max. volume of  500 cubic inches

Step-by-step explanation:

Volume =  height x length x width

considering 'x' as the length of the square corners that has been cut out from the cardboard and also, that is height of the cardboard box.

square corners are cut out so that the sides can be folded up to make a box, cardboard sides would reduce by 2x

therefore,

V = x  (30-2x) (30-2x) ---> eq(1)

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V=  4x³ - 120 x²+ 900x

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dV/dx = 12x² - 240 x +900

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For maximum dV/dx, make it equal zero

dV/dx = 0

so,  4 (3x² - 60x +225)=0

3x² - 60x+225=0   (taking 3 common)

x² - 20x + 75 =0

Solving this quadratic equation

x² - 15x -5x + 75 =0

x(x-15) - 5(x-15) =0

Either (x-15)=0

x=15

Or x-5=0

x = 5

if we substitute x=15 in eq(1), volume becomes zero.

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V= 5 (10) (10)

V= 500 cubic inches,

Therefore, Dimensions 5in x 10in x 10in will yeild a box with a max. volume of  500 cubic inches

7 0
3 years ago
Equation -1-7v+3= how do i slove this i dont know
TEA [102]
Negative one minus negative seven times volume plus three equals BLANK. If v is a variable, the question is wrong.
7 0
3 years ago
Suppose that receiving stations​ X, Y, and Z are located on a coordinate plane at the points ​(6​,2​), ​(negative 2​,negative 4​
marin [14]

Answer:

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Step-by-step explanation:

A graph is useful here. Points X and Y have coordinate differences of ...

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Then the distance between X and Y is ...

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The point 5 units from X and from Y is the midpoint of XY:

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The epicenter is (2, -1).

_____

The graph shows circles of radius 5 around X and Y, and a circle of radius 13 around Z. The circles intersect at the point (2, -1), the epicenter.

5 0
2 years ago
I need help on this math problem !
xeze [42]

Answer:

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Step-by-step explanation:

Let's break up the polygon into 3 shapes

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Step 3: Area of top square

6² = 36 units²

Step 4: Add them all up

28 + 117 + 36 = 181 units²

8 0
3 years ago
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