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kramer
3 years ago
14

Simplify 7(2.3x10^11) and write in scientific notation

Mathematics
2 answers:
satela [25.4K]3 years ago
6 0
The simplified version:

1.61*10^12

Sorry, but I have no idea what scientific notation is...
Oliga [24]3 years ago
6 0
The answer: 1.4* 10^12
________________________
Explanation:
_____________________
Note: a * (b * c) = (a * b) * c ;
______________________________
7(2.3* 10^11) = (7) * 2.3 * 10^ 11 = 14.1 * 1^ 11;  or 1.4 * 10^12
___________________________________________________
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Four friends ordered a pizza.Christopher ate 1/5, Emma ate 0.27, and Jamie ate the rest.what percent did Jamie eat?
DENIUS [597]
Percent means parts out of 100

so
1/5=0.20
chris+em+jam=100%=1
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0.47+jam=1
minus 0.47 both sides
jam=0.53
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7 0
4 years ago
Simplify each of the following:<br>(i) 175 x 175 + 2 x 175 x 25 + 25 x 25​
igomit [66]

Answer:

40000

Step-by-step explanation:

175 \times 175 = 30625 \\ 2 \times 175 \times 25 = 8750 \\ 25 \times 25 = 625 \\ 30625 + 8750 + 625 = 40000

5 0
3 years ago
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Papessa [141]

Answer:

b = -9

Step-by-step explanation:

The function is given as :

f(x)=3x^2+bx+4

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It is required to find the value of b. The axis of symmetry of a parabola is a vertical line that intercepts its vertex at its horizontal coordinate. It can be given by :

x=\dfrac{-b}{2a}

Putting x = 3/2 and a = 3 we get :

b=-2ax\\\\b=-2\times 3\times \dfrac{3}{2}\\\\b=-9

So, the value of b is -9.

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Step-by-step explanation:

I hope this helps you!

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