1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
My name is Ann [436]
3 years ago
11

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

in inches that corresponds to a shoe size of a n. A women's size 7 fits a foot 9 1/3 inches long, ands women's size 12 fits a foot 11 inches long. What is the explicit formula for the arithmetic sequence? Round to the nearest hundredth, if necessary. an=-17.91 +2.99(n-1), an=-5+2.99(n-1), an=7+0.33(n-1) , an=7.35+ 0.33(n-1)
Mathematics
2 answers:
Oksana_A [137]3 years ago
8 0

Answer:

an=7.35+ 0.33(n-1)

Step-by-step explanation:

The relationship between women's whole-number shoe sizes and foot lengths is an arithmetic sequence, where an is the foot length in inches that corresponds to a shoe size of  n.

We are given values for n=7 and n=12 as a7=9.33 and a12=11

So, we proceed from the options and check which an satisfies these values:

an = 7.35 + 0.33(n-1)

when n = 7:

an = 7.35 + 0.33 (7-1)

an = 9.33

when n = 12:

an = 7.35 + 0.33 (12-1)

an = 10.98≈11

Hence, correct option is:

an=7.35+ 0.33(n-1)

dem82 [27]3 years ago
5 0

Answer:

D

Step-by-step explanation:

You might be interested in
Round 1,287 to the nearest thousands place
alexdok [17]

Answer:

1000

Step-by-step explanation:

If a number is higher than 5 round up. If its 4 or lower round down

3 0
3 years ago
Read 2 more answers
The perimeter of the triangle is 40 units.Which of the following equations could be used to find the value of x?
Artyom0805 [142]

Answer:

13x + 112 = 320.

Step-by-step explanation:

The perimeter is the sum of the 3 sides:

1/2 x + 3/8 x + 11 + 3/4 x + 3 = 40

1/2 x + 3/8 x  + 3/4 x + 3 + 11 = 40

1/2 x + 3/8 x  + 3/4 x + 14 = 40

Multiply through by 8 to remove the fractions:

4x + 3x + 6x  + 14 = 40

13x + 112 = 320.

5 0
3 years ago
Plz help ASAP 20 points 10. What is the equation of a circle with radius, r = 4, and the center at (0,0)?
Ostrovityanka [42]

Answer:

a

Step-by-step explanation:

the equation for a circle centered at orgin is x^2+y^2=r where r is the radius. multiplying, adding, or subtracting any numbers to the x and y components such as the other choices here causes the circle to be translated about the graph.

5 0
3 years ago
Read 2 more answers
Sandrena and her friends brought frozen yogurt for 55 cents per ounce.their total was $10.45.how many ounces did they buy?
lianna [129]
You would divide 10.45 by .55 and you would get 19 so 19 is your answer hope this helps
6 0
4 years ago
What is the equation (simplified) the inverse of y=2x^2?
Yuki888 [10]
2x^2=y\ \ \ |divide\ both\ sides\ by\ 2\\\\x^2=\dfrac{y}{2}\\\\\boxed{x=\sqrt{\frac{y}{2}}}\\\\x=\dfrac{\sqrt{y}}{\sqrt2}=\dfrac{\sqrt{y}\cdot\sqrt2}{\sqrt2\cdot\sqrt2}\to\boxed{x=\dfrac{\sqrt{2y}}{2}}\\\\\\\boxed{f(x)=2x^2\to f^{-1}(x)=\dfrac{\sqrt{2y}}{2}}
3 0
3 years ago
Other questions:
  • Which is the largest? 76%,4/5, .77
    6·1 answer
  • Simplify<br> (y + 1)<br> (y + 1)
    8·1 answer
  • A number pattern was created by dividing the previous term by 3. If the starting value for the pattern was 135, which of the fol
    6·1 answer
  • Can someone help me ASAP!!!
    10·2 answers
  • hello my name is mr.k i want to fun with friends i have no friends please come zxh-iryf-vzu this is code​
    12·2 answers
  • Please need help fast ​
    12·1 answer
  • Select all equations that are equivalent to x2+6x=16.<br>​
    14·1 answer
  • PLEASE HELP
    7·1 answer
  • I’m in 7th grade and forgot how to add and subtract whole numbers and fractions, can someone explain it to me? Example: 13 2/3 -
    14·1 answer
  • Henry's Moving Company charges an initial fee of $50 plus $20 per hour (h). The total cost
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!