3 years ago

David walks 3 km north , and then turns east and walk 4 km

1 answer:

Serga [27]3 years ago

7 0

he walked 7 km in all.

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Natalka [10]

25 because -50 is negative

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2 years ago

Sauron [17]

The question "how much space is inside a solid?" is actually asking about the volume of that solid.

The volume of a cone is given by

$V = \dfrac{1}{3}\pi hr^2$

where h is the height of the cone, and r is its radius.

So, you only need to plug in the values:

$V = \dfrac{1}{3}\pi\cdot 50 \cdot 200^2 = \dfrac{2000000\pi}{3}m^3$

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3 years ago

dimaraw [331]

The number is already in prime factored form. The prime factors are 2, 3, 5, and 7. If we multiply everything out then we end up with 2100

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3 years ago

Allisa [31]

2/7x - 2/5x = 8
multiply both sides by 35
= 10x - 14x = 280
combine 10x and 14x
= -4x = 280
divide both sides by -4
x= -70

7 0

2 years ago

Len [333]

1792=3x+14
I’m not sure that’s all the way correct

7 0

2 years ago