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saw5 [17]
4 years ago
10

- 17. a – b and a - b Is it greater or equal

Mathematics
1 answer:
Wewaii [24]4 years ago
8 0
I mean equal cuz a-b is a-b
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your going to build a 3 foot by 7 garden.if you want to surround it by a 1 foot wide brick border , how many square feet will yo
stiv31 [10]

Answer:

20

Step-by-step explanation:

Multiply 3 and 7 by 2 and you get 6 and 14          6+14=20 which is the perimeter

Hope that helps!

5 0
3 years ago
If Jenner has 5 dollars and spends 5 dollars how much does she have now
Harrizon [31]
She has zero dollars
8 0
4 years ago
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for every 5 coins Carmen gets, she gives her brother Frankis 2 coins. If Carmen gets 9 coins, how many do her brother have?
Ira Lisetskai [31]

Answer:

6 coins

Step-by-step explanation:

For every 5 coins Carmen recieves, she gives off 2 to her brother, leaving her with 3 coins, 3x3=9, 2x3=6

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3 years ago
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The total surface area of a hemisphere is 45<br><img src="https://tex.z-dn.net/?f=%5Cpi%5Cp" id="TexFormula1" title="\pi\p" alt=
rjkz [21]

Answer:

The volume of the hemisphere  

       V = 121.33086 cubic centimeter

Step-by-step explanation:

<u>Step(i)</u>:-

Given that the total surface area of a hemisphere = 45π cm²

<em> The total surface area of a hemisphere = 3π r²</em>

Equating

              3π r² = 45π

                   r^{2} = \frac{45}{3} =15

                    r = \sqrt{15} = 3.87

The radius of the sphere 'r' = 3.87

<u><em>Step(ii):-</em></u>

<em>The volume of the hemisphere</em>

                 V = \frac{2}{3} \pi r^{3}

                V = \frac{2}{3} \pi (3.87)^{3}

we know that   π = 3.14

                V = \frac{2}{3}  (3.14) (3.87)^{3}

               V = 121.33086 cubic centimeter

               

         

7 0
3 years ago
If I save 100 dollars every two weeks for a month how much will i have
lyudmila [28]

Answer:

200

Step-by-step explanation:

it also depends on how many weeks there are in the month but yeah 200 is right.

4 0
3 years ago
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