3 years ago

Work out the value of (6.31×10⁵)+(2.6×10⁴) give your answer in standard form

Mathematics

2 answers:

timurjin [86]3 years ago

8 0

10 4 x (6.31 x 10 + 2.6) = 10 4 x 65.7 = 6.57 x 10 4

lidiya [134]3 years ago

7 0

Answer:

bellow

Step-by-step explanation:

$10^{4}*(6.31*10+2.6) = 10^{4}*65.7= 6.57* 10^{5}$

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$f(x)=-4x^5-8x^3+12x$

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$0=-4x^5-8x^3+12x$

Firstly, we can divide everything by -4:

$0=x^5+2x^3-3x$

Factor out an x:

$0=x(x^4+2x^2-3)$

This is in quadratic form. For simplicity, we can let:

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Then by substitution:

$0=x(u^2+2u-3)$

Factor:

$0=x(u+3)(u-1)$

Substitute back:

$0=x(x^2+3)(x^2-1)$

By the Zero Product Property:

$x=0\text{ and } x^2+3=0\text{ and } x^2-1=0$

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3 years ago

Work out the value of (6.31×10⁵)+(2.6×10⁴) give your answer in standard form​

Work out the value of (6.31×10⁵)+(2.6×10⁴) give your answer in standard form