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ycow [4]
3 years ago
11

How many times larger is 3 x 1015 than 6 x 1010

Mathematics
2 answers:
Deffense [45]3 years ago
8 0

it is 3,000 times larger! that is the difference.

Klio2033 [76]3 years ago
7 0

(3 x 10^15) / (6 x 10^10)

= (3/6) x 10^(15 - 10)

= 0.5 x 10^5

= 5 x 10^4

= 50,000

Answer

50,000 times larger

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3.
natima [27]

Answer:

See explanation

Step-by-step explanation:

Let x be the number of spade shovels, y -the number of flat shovels and z - the number of square showels sold that day.

The store keeps an inventory of 80 shovels, then

x+y+z=80

The store always buy twice as many spade shovels as square, so

x=2z

The total cost of all shovels is

16x+9.60y+12.80z=1,072

a) The system of three equations is

\left\{\begin{array}{l}x+y+z=80\\ \\x=2z\\ \\16x+9.60y+12.80z=1,072\end{array}\right.

b) In matrix form this is

\left(\begin{array}{ccc}1&1&1\\ 1&0&-2\\ 16&9.60&12.80\end{array}\right)\cdot \left(\begin{array}{c}x\\y\\z\end{array}\right)=\left(\begin{array}{c}80\\0\\1,072\end{array}\right)

c) The determinant is

\left\|\begin{array}{ccc}1&1&1\\ 1&0&-2\\ 16&9.60&12.80\end{array}\right\|=0-32+9.60-0+19.20-12.80=-16

d) Find three determinants:

\left\|\begin{array}{ccc}80&1&1\\ 0&0&-2\\ 1,072&9.60&12.80\end{array}\right\|=0-2,144+0-0+1,536-0=-608

\left\|\begin{array}{ccc}1&80&1\\ 1&0&-2\\ 16&1,072&12.80\end{array}\right\|=0-2,560+1,072-0+2,144-1,024=-368

\left\|\begin{array}{ccc}1&1&80\\ 1&0&0\\ 16&9.60&1,072\end{array}\right\|=0+0+768-0-0-1,072=-304

So,

x=\dfrac{-608}{-16}=38\\ \\y=\dfrac{-368}{-16}=23\\ \\z=\dfrac{-304}{-16}=19

e) If the store doubled all prices and inventory, then the new matrix is

\left(\begin{array}{ccc}1&1&1\\ 1&0&-2\\ 32&19.20&25.60\end{array}\right)\cdot \left(\begin{array}{c}x\\y\\z\end{array}\right)=\left(\begin{array}{c}160\\0\\2,144\end{array}\right)

7 0
3 years ago
The first quartile in a box-and-whisker plot would be located on what number?
astraxan [27]

Answer:

24.5

Step-by-step explanation:

When you round it you get 25. (sorry if im wrong) :(

4 0
3 years ago
Which is the measure of ab?
aksik [14]
Is "ab" an angle? If so, can you try to repost the picture because I cannot see anything so it's hard to try and help you.
6 0
3 years ago
Which choices are equivalent to the exponential expression below? Check all that apply . (4/5) ^ 3 B. 64/125 (4/5)(4/5) + (4/5)
Dmitrij [34]

Answer:

B) 64/125

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
6. The value of the polynomial<br>x2 -x -1 at x = -1 is *​
Licemer1 [7]

Answer:

-2

Step-by-step explanation:

Replace x with -1

(-1)2 - (-1) - 1

-2 + 1 - 1

-2

7 0
2 years ago
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