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Lelu [443]
3 years ago
7

One cubic meter (1.0 m3) of aluminum has a mass of 2700 kg, and a cubic meter of iron has a mass of 7860 kg.. Find the radius of

a solid aluminum sphere that has the same mass as a solid iron sphere of radius 2.57 cm.. Answer in units of cm
Mathematics
1 answer:
Firdavs [7]3 years ago
3 0
4/3 · 2.57³ π · 7,860 = 4/3 · r³ π · 2,700  / : 4/3 π
2.57³ · 7860 = r³ · 2,700
r³ = 2.57³ · ( 7,860 : 2.700 ) = 2.57³ · 2.911111...    /∛
r ≈ 2.57 · 1.428 = 3.67 cm 
Answer: Radius of a solid aluminium sphere is 3.67 cm.
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Alenkinab [10]

Answer:

Step-by-step explanation:

1. 6, ?, ?, ?,102

a0 =6

a1=?

a2=?

a3=?

a4=102

an= a0+n*d

a4= 6+ 4*d=102 so 4d= 102-6=96, so d=96/4=24

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6 0
3 years ago
Plot the following fractions and decimals on the number line.
OLga [1]

Answer:

hmmmmmmmm, cool

well, here ya go

Step-by-step explanation:

0.7 is AKA 7/10, which is a little less than 3/4, AKA 0.75, so in between 3/4 and 1

1/3 is larger than 1/4 but smaller than 1/2, so prob somewhere in the middle of those two.

8/7, since the numerator is larger than the denominator, is larger than 1 by 1/7, so goes right in front of 1.

0.4, AKA 4/10,  is a little less than 1/2, AKA 0.5, but larger than 1/3, AKA 0.333333333(goes on forever) so it goes in the middle of those

0.125, AKA 1/8, is the smallest of the bunch, and it's half of 1/4, AKA 0.25. That means its dead last, half between 1/4 and 0.

5/6 is the largest, around 8.333333(more foreverness)/10, which is larger than 3/4, AKA 0.75, so it goes between that and 1.

So, for your final answer:

0---0.125---1/4---1/3---0.4---1/2---0.7---3/4---5/6---1---8/7

I am not sure if thats what your structure for the question is, so I hope that that order helps. i could also put it in all decimals if it helps,  or all fractions, so let me know in the comments.

6 0
3 years ago
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emmainna [20.7K]

         \rule{50}{1}\large\blue\textsf{\textbf{\underline{Question:-}}}\rule{50}{1}

       <em>Write any 4 laws, or properties, of exponents.</em>

<em />

<em>        </em>\rule{50}{1}\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}\rule{50}{1}

\Large\text{Law number 1:-}

\Large\text{$a^n*a^m=a^{n+m}$}

\Large\text{It states that:-}

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\Large\text{Law number 2:-}

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\Large\text{It states that:-}

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               the denominator to that power.

And then last but not least,

\Large\textit{Law number 4:-}

\Large\text{$a^{-m} =\displaystyle\frac{1}{a^m}$}

\Large\text{It states that:-}

                   If we have a number with a negative exponent, we flip it over.

<h3>Good luck with your studies.</h3>

#TogetherWeGoFar

\rule{50}{1}\smile\smile\smile\smile\smile\smile\rule{50}{1}

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faltersainse [42]

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Step-by-step explanation:

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Answer:

yes

Step-by-step explanation:

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