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KonstantinChe [14]
3 years ago
9

Evaluate the expression when x = 3 and y = 5 2xy

Mathematics
1 answer:
Aliun [14]3 years ago
6 0
2xy=2*3*5= 30
It essentially means 2(3)(5) so you just multiply it all together.
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In what real-world situations would you want to round a number?
solmaris [256]
Taxes,paying for things, estimating how much money you have or will get or pay
7 0
3 years ago
Find the slope of the line
alukav5142 [94]

Answer:

-4/3

Step-by-step explanation:

y2 - y1 / x2 - x1

-9 - (-1) / 0 - (-6)

-4/3

7 0
3 years ago
A 3-gallon bottle of fabric softener costs $28.92. What is the price per quart?
bixtya [17]

Answer:

$2.41

Step-by-step explanation:

There are 4 quarts in a gallon. If there are 3 gallons that means there is 12 quarts (3x4=12) You then take $28.92 and divide it by 12, which will give you 2.40833333 and on and on, you round that to $2.41. I hope that helps!

8 0
3 years ago
7. a hockey arena has 10 920 seats. the first row of seats around the rink has 220 seats. the number of seats in each subsequent
Mazyrski [523]

The number of rows in the arena is 26

<h3>How to determine the number of rows?</h3>

The hockey arena illustrates an arithmetic sequence, and it has the following parameters:

  • First term, a = 220
  • Sum of terms, Sn = 10920
  • Common difference, d = 16

The number of rows (i.e. the number of terms) is calculated using:

S_n = \frac{n}{2}(2a + (n -1) * d)

So,we have:

10920 = \frac{n}{2}(2 * 220 + (n -1) * 16)

Evaluate the terms and factors

21840 = n(440 + 16n -16)

Evaluate the like terms

21840 = n(424+ 16n)

Expand

21840 = 424n + 16n^2

Rewrite as:

16n^2 + 424n - 21840 = 0

Using a graphical tool, we have:

n = 26

Hence, the number of rows in the arena is 26

Read more about arithmetic sequence at:

brainly.com/question/6561461

#SPJ1

4 0
2 years ago
Write in Slope Intercept<br> Form:<br> (0,4) (3,18)
satela [25.4K]

Answer:

Do y²-y¹/x²-x¹. So do 18-4/3-0 in order to get 14/3 and your slope intercept form! Hope this helped

6 0
3 years ago
Read 2 more answers
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