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zalisa [80]
3 years ago
6

Hi can anybody tell me the answer please

Mathematics
2 answers:
Dmitriy789 [7]3 years ago
6 0

Answer:

x = 14 cm

Step-by-step explanation:

200 000 cm = 2 km

1 cm ............... 2km

x cm ..............28 km

x = 28*1/2 = 28/2 = 14 cm

Natalka [10]3 years ago
5 0

Answer:

14cm

Step-by-step explanation:

1 : 200000 \\ 1cm : 200000cm \\  \\ 28km = 28000m \\ 28000m = 2800000cm \\  \\ 1 : 200000 \\ x : 2800000 \\ cross \: multiple \\  \\ 200000x = 1 \times 2800000 \\ 200000x = 2800000 \\  \frac{200000x}{200000}  =  \frac{2800000}{200000}  \\ x = 14cm

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Find the radius of a sphere with a volume of 4.5π cubic centimeters.
ArbitrLikvidat [17]

Answer:

r≈1.02

Step-by-step explanation:

3 0
3 years ago
PLZ HELP QUICK WILL MARK BRAINLIEST
natima [27]

Answer:

Step-by-step explanation:

12.

the formula for the volume of a cone is V=1/3hπr²

549.5 = 1/3(21)(3.14)(x)^2

549.5 = 7(3.14)(x)^2

549.5 = 21.98(x)^2

549.5 = 21.98(x)^2

divide by 21.98 on both sides

25 = (x)^2

sqrt 25 = sqrt x^2

5 = x

13.

the formula for the volume of a sphere is V=4/3πr^3

v=4/3(3.14)9^3

v=4/3(3.14)729

v=(4.186)729

v=3052.08

14.

the formula for the volume of a sphere is V=4/3πr^3

523=4/3(3.14)r^3

523=4/3(3.14)r^3

523=(4.186)r^3

divide by 4.186 on both sides

124.92=r^3

cube root on both sides

4.998=r

round

5=r

<em><u>Please mark brainliest this took me a while</u></em>

7 0
2 years ago
At 2pm on Tuesday the temperature was -12
cestrela7 [59]

Answer:

-2×h

Step-by-step explanation:

because it drops-2 by hour so multiply-2 by the difference of hours

8 0
3 years ago
A wheelchair ramp is 10 feet long. the ramp sits up on a 2 foot platform
alina1380 [7]

Answer:

5 ft

Step-by-step explanation:

not sure what the wuestion is but using the formula. A^2 + B^2 = C^2 we find that 100 / 4 = 25 and the square root of 25 is 5

3 0
2 years ago
6z-4-z+10=-9 plz help and hurry
Anna35 [415]
6z -4 - z + 10 = -9
Combine like terms
5z + 6 = -9
Subtract both sides by 6
5z = -15
Divide both sides by 5
z = -3
Have an awesome day! :)
7 0
3 years ago
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