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Mumz [18]
3 years ago
6

6.8 + [(0.5 times 7) + (3.1 times 3)] answer

Mathematics
1 answer:
andrezito [222]3 years ago
3 0

Answer:

19.6

Step-by-step explanation:

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Find the area of this figure. Round your answer to the nearest hundredth. Use 3.14 to approximate Pi.
taurus [48]

Answer:

 26.13ft^2

Step-by-step explanation:

Step  1 - As both triangles have lengths the same size, they both add together to equal a rectangle. Therefore:

4 x 3 = 12

Which is the area of the triangles.

Step 2 - Calculating the area of a circle uses the formula:

\pi r^2

Where r is the radius of the circle.

Plug the known variables in:

\pi \cdot 3^2\\\pi \cdot 9\\3.14 \cdot 9 = 28.26\\

However, this is the area of a full circle. The figure is only half a circle so we must divide this by two:

28.26 ÷ 2 = 14.13

Now, add the area of the semi-circle to the area of the triangles:

14.13 + 12 = 26.13

Therefore, the area of the figure is 26.13ft^2.

Hope this helps!

6 0
2 years ago
Phil has 7 quarts of hot chocolate to give his class mates. how many of phils friend's can have one cup of hot chocolate
Rudik [331]
4 cups per quarter

4 x 7 = 28

28 kids can have a cup of hot chocolate.
4 0
3 years ago
A CD's sale price is $14. This is a 4% decrease from its original price. What was the original price?
atroni [7]

Answer:

0.56

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A square swimming pool with the perimeter of 156 feet find the length of one side
frosja888 [35]
156 divided by 4 is 39  So each side is 39
3 0
4 years ago
Read 2 more answers
-3x+6y= -3 and -5+y=-23
Ira Lisetskai [31]

-5 +y = -23

add 5 to each side

y = -18

-3x+6y = -3

-3x + 6(-18) = -3

-3x -108 = -3

add108 to each side

-3x = 105

divide by -3

x = -35


x=-35

y= -18



5 0
3 years ago
Read 2 more answers
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