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sergey [27]
3 years ago
10

The mass of Earth is approximately 5.9 x 1024 kg and the mass of Venus is approximately 4.9 x 1025 kg. What is their total combi

ned mass expressed in scientific notation? Show your work. DID I GET THE ANSWER RIGHT? IF NOT EXPLAIN HOW TO FIND THE ANSWER!! AND THE WORK!!
WORK:
5.9 x 4.9 = 28.91

25-24= 1

ANSWER:
28.91 x 10^1
Mathematics
1 answer:
hodyreva [135]3 years ago
4 0
I'm not sure if that's the correct method of finding that (it could be, I was just never shown that kind of method). What I did was multiply everything out, that way you have two numbers vs two equations. Then add those two numbers and turn that into scientific notation.
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A triangular building has an area of 350 1/4. If the height is 75, what is the base of the triangle?
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Answer:

9.33

Step-by-step explanation:

 

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What percent would be equivalent to \frac{8}{10} 8 10 ?
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4 years ago
C and D are complementary. The measure of C is (4x) degrees and the measure of K is 26 degrees. What is the value of x?
Semmy [17]

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16

Step-by-step explanation:

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4 0
3 years ago
The number 64 has the property that it is divisible by its units digit. How many whole numbers between 10 and 50 have this prope
sineoko [7]

Answer:

\large \boxed{17}

Step-by-step explanation:

Let's call the numbers "<em>tu</em>", where<em> t</em> is the tens digit and <em>u</em> is the units digit.

We can solve this by the "brute force" method —  examining each number to see if it satisfies the conditions.

\begin{array}{cccl}\mathbf{u}&\mathbf{tu}& \textbf{Divisible by u} & \\0 &20, 30, 40 & 0 & \text{Division by zero is impossible}\\1 & 11, 21, 31, 41 & 4& \text{All numbers are divisible by one}\\2 & 12, 22, 32, 42 & 4 & \text{All even numbers are divisible by two}\\3 & 13,  23, 33, 43 & 1 &\text{Only 33 is divisible by three}\\4 & 14, 24, 34, 44 & 2 & \text{Only 24 and 44 are divisible by four}\\5 & 15, 25, 35, 45 & 4 & \text{Numbers ending in 5 are divisible by five}\\\end{array}

\begin{array}{cccl}6 & 16, 26, 36, 46 & 1 & \text{Only 36 is divisible by six}\\7 & 17, 27, 37, 47 & 0 & \text{None of the numbers is divisible by seven}\\8 & 18, 28, 38, 48 & 1 & \text{Only 48 is divisible by eight}\\9 & 19, 29, 39, 49 & 0 & \text{None of the numbers is divisible by nine}\\& \textbf{TOTAL =} &\mathbf{17}& \\\end{array}\\\text{$\large \boxed{\mathbf{17}}$ numbers between 10 and 50 are divisible by their units digit}

5 0
3 years ago
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