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ZanzabumX [31]
3 years ago
15

12

Mathematics
1 answer:
Artemon [7]3 years ago
7 0

Answer:

63

Step-by-step explanation:

Use Pythagorean theorem,

base² + altitude² = hypotenuse²

a² + 9² = 12²

       a² = 12² - 9²

      a² = 144 - 81

     a² = 63

      a = √63

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3.8*10 to the 9th power divided by 4*10 to the 2nd power
user100 [1]

Answer:

9.5\times 10^{6}

Step-by-step explanation:

1. Divide the coefficients and the exponentials separately

\dfrac{3.8 \times 10^{9}}{4 \times 10^{2}} = \dfrac{3.8}{4} \times \dfrac{10^{9}}{10^{2}}

2. Divide the coefficients

\dfrac{3.8}{4} = 0.95

3. Divide the exponentials

Subtract the exponent in the denominator from the exponent in the numerator.

\dfrac{10^{9}}{10^{2}} = 10^{(9 - 2)} = 10 ^{7}

4. Re-join the new coefficient and the new exponential

\dfrac{3.8 \times 10^{9}}{4 \times 10^{2}} = 0.95 \times 10^{7}

5. Put the new number into standard form

The number before the power of 10 must be greater than or equal to one and less than 10.

Multiply the answer by 10/10.

(0.95 \times 10^{7}) \times \dfrac{10}{10} = (0.95\times10) \times \dfrac{10^{7}}{10} = \mathbf{9.5\times 10^{6}}

5 0
3 years ago
Which of the sets of ordered pairs represents a function?
Bumek [7]
C, nether of the problems have any repeating coords.
8 0
3 years ago
Read 2 more answers
Which product has 4 zeros after the digit 3? 0.03 times 10 with the power of 5. 0.3 times 10 with the power of 4 0.03 times 10 w
sweet [91]

Answer:

0.3 * 10^5

Step-by-step explanation:

0.3

 ^ You need to move the three before the decimal place and leave 4 empty digits (0) between

0.3

3.0

30.0

300.0

3000.0

30000.0

A total of 5 moves.

Each move is equivalent to x, the preceding value, times 10. x * 10

Repeated multiplication times the same factor equates to exponentiation, so for a total of 5 moves, it is notated as 10^5, giving you an expression of:

0.3 * 10^5

7 0
4 years ago
You select a marble without looking and then put it back. If you do this 48 times, what is the best prediction possible for the
xxTIMURxx [149]

Answer:

how many marbles and how many colors do we have?

Step-by-step explanation:

4 0
2 years ago
25 is 32 percent of what number?
Reptile [31]
The answer is:  " 0.78125 " .
_____________________________________________
32% = 32/100 = 32÷100 = 0.32 ; 

(0.32)n = 25 ; solve for "n" ;

32 n = 25 ; 

32 n / 32 = 25/ 32 ; 

n = 25/32 = 0.78125
___________________________________________________

not applicable/ not an answer/ non-answer to: "non-question and/or incomplete question content; 
absurd/confusing/incomplete/improper answer/ please review! THANK YOU!  Kind regards.
8 0
3 years ago
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