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Mazyrski [523]
3 years ago
12

Work out the area of this semicircle.

Mathematics
2 answers:
Monica [59]3 years ago
6 0
39.28 so it is pongy
castortr0y [4]3 years ago
4 0

Answer:

Area of semi circle = 1/2 ×πr²

π = 3.142 and r = if 10cm

Area = 1/2 × 3.142 × 10²

Area = 1/2 × 3.142 × 100

Area = 3.142 × 50

Area = 157.10cm²

Step-by-step explanation:

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rewona [7]

Answer:

125.6m^2

Step-by-step explanation:

Let R be the greater radius and r be the smaller radius

Area of the sidewalk = R^2 - r^2 - This can be the expression

= 3.14

=(R^2-r^2)

=(11^2-9^2)

=(121-81)

= 40

= 3.14 x 40

5 0
3 years ago
. Aladdin found a cave filled with boxes of gold, measuring 2 inches × 2 inches × 2 inches, and boxes of silver, measuring 1 inc
Viktor [21]

Answer:

Step-by-step explanation:

volume of box=6×6×7 in³

he fits gold 2×2×2

so he fits it in 6×6×6

so number of gold boxes=(6×6×6)/(2×2×2)=27

remaining space=1×6×6

number of silver boxes=(1×6×6)/(1×1×1)=36

total boxes he took=27+36=63

4 0
3 years ago
Please help me with questions 13-22!! I know I already answered 14 but if it is wrong please tell me!!! I don't have much time!!
neonofarm [45]

Answer:

13. no solution

15. 3

16. 2

17. 5

18. -8

19. -7

20. 6

21. -5

22. -7

3 0
4 years ago
Can someone help me find the slope
professor190 [17]

Answer:

Slope is -2

Step-by-step explanation:

( -3, 7) and ( -2, 5)

Slope:

m=(y2-y1)/(x2-x1)

m=(5-7)/(-2+3)

m = (-2)/1

m = -2

8 0
3 years ago
Seven hundredths of 86 is what number?
Alina [70]
6.02

Hope this helps ;)
8 0
3 years ago
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