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marissa [1.9K]
4 years ago
9

What is the circumference if 40

Mathematics
1 answer:
san4es73 [151]4 years ago
8 0
It should be 6.36cm. If not ask someone smart in your class.
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1/2(6y-8)-(12y-16)+7
LiRa [457]

Answer:

-9y + 19

Hope that helps.

8 0
3 years ago
Factorise the following expression <br> 3x^2 + 15xy
Nikitich [7]
<span>3x^2 + 15xy
=3x(x + 5y)

hope that helps</span>
8 0
3 years ago
Miguel has one dollar in change. He has twice as many nickels as dimes. He has 14 more pennies than quarters. What coins does he
marin [14]
D=dimes
n=niclkes
p=pennies
q=quarters

1 dollar (100 cents)
2 times as many nickles as dimes
n=2d

14 more pennies than quarters
p+14=q

and total is 1 dollar so
25q+10d+5n+p=100
ok so we must use logic
the max number of quarters in a dolar is 4
but there are pennies so max is 3
so q=1,2, or 3
therefor p=15,16 or, 17

also, the rest of te coins are only multipules of 5 so the sum amount of pennies and quartes must add to a multiplule of 5

if q=1 and p=15, total is 40 cents
if q=2 and p=16, total is 66 cents
if q=3 and p=17, total is 92 cents
only 40 cents is a multiplule of 10

1 quarter and 15 pennies
now we are having
40 cents is pennies and quartesrs
therfor 100-40=60 cents is nickles and dimes
60=5n+10d
n=2d
sub
60=5(2d)+10d
60=10d+10d
60=20d
divide both sides by 20
3=d
sub
n=2d
n=2(3)
n=6

6 nickles
3 dimes




answer is
1 quarter
3 dimes
6 nickles
15 pennies
4 0
3 years ago
12345678910 Using the greatest common factor for the terms, how can you write 80 + 32 as a product?
Romashka-Z-Leto [24]
Find the GCF of 80 and 32.  

I'd start by identifying possible integer factors of both 80 and 32:
80:  {1,2,4,5,8,10,16,20, 40, 80}

32:  {1, 2,4, 8, 16, 32}

Working backwards, we see that the first factor that is represented in both lists is 16.  Is 80 evenly divisible by 16?  Yes; the quotient is 5.
                  Is 32 evenly divisible by 16?  Yes; the quotient is 2.

You could writet 80 + 32 as 16(5 + 2).  This is a product equal to 112, just as 80 + 32 = 112.
5 0
4 years ago
Round to the nearest hundredth. Question is BC=
AveGali [126]

Answer:

BC = 15.01

Step-by-step explanation:

7 x tan(65) = 15.01154844

5 0
3 years ago
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