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4 years ago

Which digit is in the hundreds place in 3,254,107

Mathematics

1 answer:

ozzi4 years ago

5 0

The 1 is in the hundreds place good luck!!!

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What is the volume of a hollow ball whose other radius is 200m and inner radius of 100m? What is the mass if it is iron?

kati45 [8]

Solution :

Volume of ball = Volume of outer ball - Volume of inner ball

$V = \dfrac{4\pi R^3}{3} - \dfrac{4 \pi r^3}{3}\\\\V = \dfrac{4\pi}{3}( R^3 - r^3 )\\\\V = \dfrac{4\pi}{3}( 200^3 - 100^3 )\\\\V = \dfrac{4\pi}{3}(2^3 - 1^3) \times 10^6\\\\V = 2.93 \times 10^7 \ m^3$

Now, density of iron is, d = 7300 kg/m³.

So, mass of iron ball is :

$m = d\times V\\\\m = 7300\times 2.93 \times 10^7 \ kg\\\\m = 2.14 \times 10^{11}\ kg$

Hence, this is the required solution.

5 0

3 years ago

Water makes up about 71% of Earth's surface, while the other 29% consists of continents

Likurg_2 [28]

Answer

1.386 billion.

Step-by-step explanation:

3 0

3 years ago

Dropping less than two inches per mile after emerging from the mountains, a river drains into the ocean. One day's discharge a

Tanya [424]

Answer:

dont know sorry

Step-by-step explanation:

4 0

4 years ago

Which choice is equivalent to the expression below?

Ksenya-84 [330]

Answer:

28 + 2/10 + 4/100

Step-by-step explanation:

28.24

28 ones plus 2 tenths plus 4 hundredths

28 + 2/10 + 4/100

8 0

3 years ago

5. Solve the problem and find the answer

Ghella [55]

Answer:

x ≈ 263.1

Step-by-step explanation:

The marked sides are the hypotenuse and the side adjacent to the given angle. The relevant trig relation is ...

Cos = Adjacent/Hypotenuse

cos(70°) = 90/x . . . . use given values

x = 90/cos(70°) . . . . multiply by x/cos(70°)

x ≈ 263.1

_____

<em>Additional comment</em>

The mnemonic SOH CAH TOA is intended to remind you of the primary trig relations:

Sin = Opposite/Hypotenuse

Cos = Adjacent/Hypotenuse

Tan = Opposite/Adjacent

7 0

3 years ago