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3 years ago

The length of a rectangle is 3 inches more than twice its width, and its area is 65 square inches. What is the width?

Mathematics

2 answers:

gogolik [260]3 years ago

6 0

Width = 5
5x2 = 10 and the length would 13... which is 3 more inches than twice the width

VikaD [51]3 years ago

6 0

Answer:

5 inches ______________

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The area of a rectangle is expressed as (14r + 21) square feet. If the width of the

lilavasa [31]

Answer:

L = 2r + 3

Step-by-step explanation:

Given parameters:

Area of rectangle = 14r + 21

Width of the rectangle = 7ft

Unknown:

Length of the rectangle = ?

Solution:

If the length of the rectangle is designated as L;

Area of a rectangle = Length x width

Now insert the parameters:

14r + 21 = L x 7

L = $\frac{14r + 21}{7}$

L = 2r + 3

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2 years ago

1. x=1/(root3-root2). find rootx-(1/rootx) 2. if x=[root(a+2b)+root(a-2b)]/[root(a+2b)-root(a-2b]. show that bx^2-ax+b=0

timofeeve [1]

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3 years ago

Read 2 more answers

Given each of the following areas, what would be the radius of each circle? a. A = 530.66 m2 b. A = 907.46 sq. ft. c. A = 379.94

ra1l [238]

Area for a circle is $A= \pi r^2$ . We will fill in each area and then solve for the radius. $530.66m^2= \pi r^2$ and $\frac{530.66m^2}{3.14}=r^2$ . ∴ $169=r^2$ and r = 13. For b, $907.46ft^2= \pi r^2$ and $\frac{907.46ft^2}{3.14}=r^2$ . $289=r^2$ , ∴ r = 17. For c, $379.94mi^2= \pi r^2$ , and $\frac{379.94mi^2}{3.14}=r^2$ . ∴, $121=r^2$ and r = 11. For d, $1962.5cm^2= \pi r^2$ , and $\frac{1962.5cm^2}{3.14}=r^2$ . ∴, $625=r^2$ so r = 25. And there you have it!

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3 years ago

On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of 106 and a standard deviatio

DENIUS [597]

Answer:

Step-by-step explanation:

N(106,14²)

(calculated using excel, let me know if you were supposed to use a normal table) = 0.4715

85.34

Q1:96.56

Q3:115.44

IQR (which is Q3-Q1)= 115.44-96.56= 18.88

5 0

2 years ago

I need help plsssd it’s algebra

nalin [4]

I would say B

Hope I helped :)

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3 years ago