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Tanzania [10]
2 years ago
10

The diameter of a circle is 18 centimeters. What is the area? Give the exact answer in simplest form

Mathematics
1 answer:
alina1380 [7]2 years ago
7 0

Answer:

254.47

Step-by-step explanation:

Formula is pi r^2

the radius is 9 which is half of the diameter

pi 9^2

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1/2 ÷8 = <br><br> this on studyisland
vitfil [10]

Answer:

0.19

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
the sum of three times one number, x, and five times a second number,y, is 77. if the sum of the two numbers is 19, find the two
HACTEHA [7]

Answer:

x=9, y=10. (9, 10). The two numbers are 9 and 10.

Step-by-step explanation:

3x+5y=77

x+y=19

------------------

3x+5y=77

-3(x+y)=-3(19)

---------------------

3x+5y=77

-3x-3y=-57

-------------------

2y=20

y=20/2

y=10

x+10=19

x=19-10

x=9

5 0
3 years ago
Resolva a equação a seguir:<br> (x-3/2) + (2x-3/4) = (x²) + (x)-(17/2)
bagirrra123 [75]
X =(-8+√464)/-8=1-1/2√<span> 29 </span><span>= -1.693</span>
8 0
2 years ago
Here are the ingredients for a cake. 0.225 kg butter 225 g sugar 225 g flour 0.2 kg eggs 250 g berries How much do the ingredien
viktelen [127]

Answer:

1125.

Step-by-step explanation:

I'm going to work out the answer is <u><em>grams</em></u>.

1kg = 1000g

0.225kg of butter = 225g, 225g of sugar, 225g of flour, 0.2kg of eggs = 200g, 250g of berries.

225 + 225 + 225 + 200 +250 = 1125.

Hope that helps. x

5 0
2 years ago
Read 2 more answers
..........................
liubo4ka [24]

Answer:

82.96

Step-by-step explanation:

area of box:

A = L^2 = (14 in.)^2 = 196 in.^2

area of pizza:

A = (pi)r^2 = 3.14 * (6 in.)^2 = 113.04 in.^2

Empty area:

196 in.^2 - 113.04 in.^2 = 82.96 in.^2

7 0
3 years ago
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