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3 years ago

4. Andrew likes to solve puzzles.

Mathematics

1 answer:

just olya [345]3 years ago

8 0

Answer:

Step-by-step explanation:

Andrew likes to solve puzzles.

It took him 4.5 minutes to complete one puzzle with 18 numbers.

It took him 6 minutes and 24 seconds to complete a different puzzle with 32 numbers.

a For each puzzle work out how many seconds it took Andrew to complete one number.

b Use your answer to part a to decide which puzzle Andrew completed faster.

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Information about five planets is shown in the table below.

Karo-lina-s [1.5K]

Answer:

(a)Jupiter

(b)24.4 km

Step-by-step explanation:

Part A

The planet with the greatest ma.ss is Jupiter.

It has a ma.ss of $1.898 X 10^{27}$ kg$

Part B

The diameter of Mercury = 4.88 X 10

Radius = Diameter/2

Therefore:

Radius of Mercury

$=\dfrac{4.88 X 10}{2}\\ =2.44 X 10\\=24.4$ km$

Part C

$M$a.ss of Saturn = 5.68 X 10^{26}\\$Mass of Jupiter = 1.898 X 10^{27}\\$Difference in their ma.ss =(1.898 X 10^{27})-(5.68 X 10^{26})\\=1.33 \times 10^{27}$ kg$

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4 years ago

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ipn [44]

Answer:

Step-by-step explanation:

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3 years ago

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How do you graph the quadratic 0= x^2 + 21 + 98

kkurt [141]

The expression you typed has only two solutions. "Graphing" it would simply be placing two dots at the solutions, specifically the two spots where the curve would have touched the x axis...

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4 years ago

Line p passes through A(-2, -4) and has a slope of -1/2. What is the standard form of the equation for line p?

ValentinkaMS [17]

Answer:

Step-by-step explanation:

2+2

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4 years ago

3. What fraction of a revolution does the hour hand of a clock turn through when: (a) it starts at 3 and stops at 11

Anestetic [448]

Answer:

2/3.

Step-by-step explanation:

Full revolution = 12 hours

11 - 3 = 8 hors

So it is 8/12 = 2/3 of a revolution.

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2 years ago