Mathematics: 7.45 x 10^3 in standard notation

7.45 x 10^3 in standard notation - id7451037262261, montgomeryaevans

jaceechesick

31.01.2022

Answer

it is 7450

Step-by-step explanation:

you multiply 7.45 and 1000 to get the answer

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adrian08022

31.01.2022

7450

Step-by-step explanation:

Move the decimal to the right 3 times.

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lala158736

18.05.2021

If you know Heron's formula, this is easy.

$\text{area}=\sqrt{s(s-6)(s-10)(s-14)}=15\sqrt3$

where $s=\dfrac{6+10+14}2=15$ is the semiperimeter of the triangle.

The area is also equal to half the product of the base and height of the triangle, which happen to be

$15\sqrt3=\dfrac{14x}2\implies x=\dfrac{15\sqrt3}7\approx3.711$

so the answer is B.

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