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Trava [24]
3 years ago
7

The relationship between women’s whole-number shoe sizes and foot length forms an arithmetic sequence, where an is the foot leng

th in inches that corresponds to a shoe size of n. A women’s size 3 fits a foot 8 inches long and women’s size 7 fits a foot 91 3 inches long. What is the common difference of the arithmetic sequence?
Mathematics
2 answers:
Gre4nikov [31]3 years ago
6 0

Answer: 1/3, just took the quiz

Step-by-step explanation:

Lera25 [3.4K]3 years ago
4 0

Answer:

part 1- 1/3

part 2- a.n = 22/3+(n-1)1/3

part 3- size 12

Step-by-step explanation:

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Which of the following is polynomial?
lawyer [7]

Answer:

x^2-1 has two terms without any negative exponent. so it is a polynomial.

Step-by-step explanation:

A polynomial is a expression with more than one terms.

The expression with negative exponent is not a polynomial.

Expression in the denominator is also not a polynomial

x^2-1 has two terms without any negative exponent. so it is a polynomial.

option B,C and D has negative exponents, so it is not a polynomial.

7 0
3 years ago
The interior of a regular polygon is 5 times the exterior angle
densk [106]

Step-by-step explanation:

The interior angle of a polygon is given by

\frac{(n - 2) \times 180}{n}

The exterior angle of a polygon is given by

\frac{360}{n}

where n is the number of sides of the polygon

The statement

The interior of a regular polygon is 5 times the exterior angle is written as

\frac{(n - 2) \times 180}{n}  = 5( \frac{360}{n} )

Solve the equation

That's

\frac{180n - 360}{n}  =  \frac{1800}{n}

Since the denominators are the same we can equate the numerators

That's

180n - 360 = 1800

180n = 1800 + 360

180n = 2160

Divide both sides by 180

<h3>n = 12</h3>

<h2>I).</h2>

The interior angle of the polygon is

\frac{(12 - 2)  \times 180}{12}  =  \frac{10 \times 180}{12}  \\  =  \frac{1800}{12}

The answer is

<h2>150°</h2>

<h2>II.</h2>

Interior angle + exterior angle = 180

From the question

Interior angle = 150°

So the exterior angle is

Exterior angle = 180 - 150

We have the answer as

<h2>30°</h2>

<h2>III.</h2>

The polygon has 12 sides

<h2>IV.</h2>

The name of the polygon is

<h2>Dodecagon</h2>

Hope this helps you.

6 0
3 years ago
What is the missing numerator in the equivalent fraction? The mixed number 3 one-half is equivalent to a fraction with a denomin
Alex

7 is the missing numerator in the equivalent fraction with a denominator of 2.

<u>Step-by-step explanation</u>:

The mixed fraction is 3 1/2.

  • Convert it into a proper fraction to get a equivalent fraction.
  • Multiply the denominator 2 with 3 and then add 1 to the answer.

⇒ 3 1/2 = ((3\times2) + 1)/2

⇒ 3 1/2 =7/2

∴ The numerator of the equivalent fraction is 7.

3 0
3 years ago
Evaluate the expression. Write your answer in scientific notation.
joja [24]
1. 7.8 x 10^3
2. 4.8 x 10^8
5 0
3 years ago
If you had a cube with a side length of 4, how can your write the calculations in exponential form? What are 2 other ways to rea
Vitek1552 [10]

Answer: 4^3

(Four cubed or Four to the power of 3)

Step-by-step explanation:

5 0
3 years ago
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