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USPshnik [31]
3 years ago
8

MATH!!!!!!!! Help please

Mathematics
1 answer:
postnew [5]3 years ago
6 0

Answer:

9

Step-by-step explanation:

f(3) means what is the value of f(x) when x = 3

From the table

When x = 3 then f(x) = 9

Thus f(3) = 9

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A community center is expanding the size
Katen [24]

So the original area is 300*150 (or 45000 ft^2), but now the new area is (300+3y)(150+3y).

The polynomial in standard form would be 45000+900y+450y+9y^2=45000+1350y+9y^2

But the proper way to write it is 9y^2+1350y+45000

When y=4, we get 9(4^2)+1350(4)+45000=9(16)+54000+45000=144+99000=99144

So the new area would be 99144 ft^2

Hope this helped!

6 0
3 years ago
A 3650​-year-old wooden chest is found by archaeologists. What percentage of the original Superscript 14 Baseline Upper C would
AfilCa [17]

Answer:

64.5%

Step-by-step explanation:

Initial amount N° = ?

Remaining amount after decay = N = ?

k = decay constant =  0.00012 yr^{-1}

t = time = 3650​ year

fraction remaining will be N/N°

From the decay equation, N = N°e^{-kt}

N/N° = e^{-kt}

N/N° = e^{-0.00012 x 3650 }

N/N° = e^{-0.438}

N/N° = 0.645 = 64.5%

6 0
3 years ago
I dont understand and this is very urgent so can someone help me out please?
wariber [46]

Answer:

Please Find the solution below

Step-by-step explanation:

Let us say the two equations are

x+y=5            --------------(A)

x-y=1              -------------(B)

Let us solve them for x and y by adding them

2x=6

x=3

Hence from (A)

3+y=5

y=2

Hence our solution is

x=3, y=2

Adding same number to equation (A) say 2 we get

x+y+2=5+2

x+y=5+2-2

x+y=5

Hence equation remains the same while adding same number to each side.

Same thing happens if we add same number to equation (B)

Hence we draw the conclusion that the solution remains the same if same number is added to each side of the original equation.

6 0
3 years ago
Which expression is equivalent to 2(3g – 4) - (8g + 3)?
Brilliant_brown [7]

Answer:

The Answer is D

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the slope of the line.<br><br> A.) 3/2<br> B.) - 2/3<br> C.) - 3/4<br> D.) 4/3
Julli [10]
Option C is your answer. 

It's a negative sloping line which eliminates A and D. Then you just do the whole rise-over-run deal to get the 3/4 part. 
8 0
3 years ago
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