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butalik [34]
3 years ago
7

Add. (5n^2+4n)+(3n^2+6n)

Mathematics
1 answer:
MAVERICK [17]3 years ago
7 0
5n^2+4n+3n^2+6n=
5n^2+3n^2+4n+6n=
8n^2+10n
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How tall is the flag pole (please give explanation too)
Tpy6a [65]

Answer:

  22 3/4 ft

Step-by-step explanation:

The diagram seems to show a 6 1/2 ft person casting a 9 ft shadow at the same time a flagpole is casting a 31 1/2 ft shadow. You want the height of the flagpole.

<h3>Proportion</h3>

Shadow lengths are presumed proportional to the height of the object making them. This means ...

  h/(31 1/2) = (6 1/2)/9 . . . . . all lengths in feet

Multiplying by 31 1/2, we get ...

  h = (31 1/2)(6 1/2)/9 = (819/4)/9 = 91/4

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3 0
1 year ago
Which of the following describes the expression? 5(y + 6)
Ymorist [56]

Answer:

D. The product of a constant factor 5 and a 2-term factor x+2

Step-by-step explanation:

Hope that helps

4 0
3 years ago
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Explain how to write a function rule from the table below. Then write a function rule
DedPeter [7]
To write an equation you need a slop and y intercept. To find the slop use the formula y2-y1 /x2-x1. and for the y intercept use the formula y=mx+b
3 0
3 years ago
11. The entry fee to the fair is $4. Each ride requires a ticket that costs $0.50. Heidi spent a total of
masya89 [10]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
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vova2212 [387]

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6 0
3 years ago
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