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DaniilM [7]
3 years ago
13

Can someone please help me?

Mathematics
1 answer:
Mariana [72]3 years ago
4 0
The answer is A because each x-value should only have one y-value in a working function. I hope this helps!
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which equation is the quadratic variation equation for the relatonship? the variable y varies directly with x^2 and y=36 when x=
svetoff [14.1K]

For this case we have a direct variation of the form:

y = kx ^ 2

Where,

  • <em>k: proportionality constant </em>

We must find the value of k.

For this, we use the following data:

y = 36\\x = 3

Therefore, replacing values we have:

36 = k (3) ^ 2

Rewriting:

36 = 9k

Clearing the value of k we have:

k = \frac {36} {9}\\k = 4

Therefore, the direct variation equation is given by:

y = 4x ^ 2

Answer:

The quadratic variation equation for the relatonship is:

y = 4x ^ 2

8 0
3 years ago
Amanda wants wall-to-wall carpeting in her living room, which measures 12’ x 15’. Carpeting is on sale for $38.00 per sq. yd. Es
nekit [7.7K]

Answer:

$760

Step-by-step explanation:

First off we need to define the amount of feet per square yard.

(3feet= 1yard)

(9 squarefeet = 1 square yard)

Now we find the total area of Amanda's living room.

12 x 15 = 180 sq feet

Now that we have the total area of Amanda's living room, we then divide the total to the number of square feet in a square yard.

180 / 9 = 20 square yards.

Amanda will need a total of 20 square yards to carpet her living room. Now we simply multiply the amount of each square yard to the total amount of square yards that Amanda needs.

38 x 20 = $760

4 0
3 years ago
Adriana brought a shirt for 35$ plus she paid and additional 8% in sales tax. What was Adriana final cost. Plus show work.
mina [271]

Answer:

$37.08

Step-by-step explanation:

Bought the shirt for - $35

Selling price after tax - $35 + 8%

\frac{8}{100} × \frac{35}{1} = \frac{280}{100} or 2 \frac{4}{5}

\frac{4}{5} is equal to 0.8

= $2 + $0.8 = $2.08

Selling price after tax = $35 + $2.08 = $37.08

Hope this helps!

3 0
3 years ago
Pls helppppppppppppppppp
Elenna [48]

Answer:

977.65

Step-by-step explanation:

Add three amounts together divide that number by 3.

2932.95/3=977.65

8 0
4 years ago
Read 2 more answers
9 11/12- 2 8/11 is a problem that i need help on
Vitek1552 [10]
Hey there!!

Okay here are the steps you can follow!

9 11/12  ---->  improper fraction  ----> 119/12
2 8/11  ---->  improper fraction  ---->  30/11

119/12  -  30/11
(119/12  -  30/11) * 132
11(119)  -  12(30)
1309 - 360
<u>949</u>
3 0
4 years ago
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