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3 years ago

What is the number in standard form? 4.9×108

Mathematics

2 answers:

Romashka-Z-Leto [24]3 years ago

7 0

Hi i just took this test and the answer is

490,000,000

Hoped i Helped Out.

raketka [301]3 years ago

5 0

The standard form for 4.9x10^8 is 490,000,000. You can obtain his number by taking 4.9 and moving the decimal 8 spaces to the right since the 10^8 has a positive 8 number. If the 8 was a negative number, then you would move the decimal 8 spaces to the left.

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Choose the correct description of the graph of the compound inequality shown below;

baherus [9]

Answer: C Hope it's helpful

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3 years ago

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steposvetlana [31]

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3 years ago

12. Simplify –3√ 2 + 3√ 8 . A. 3√ 2 B. –3√ 2 C. 0 D. 9√ 2

scZoUnD [109]

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3 years ago

Read 2 more answers

For what value of x is sq 896z^15/225z^6 = xz^4/15

Ratling [72]

Answer:

Value of x is, 8

Step-by-step explanation:

Given: $\sqrt{\frac{896z^{15}}{225z^6}} =\frac{xz^4}{15} \sqrt{14z}$ ,.....[1]

To find the value of x:

Using exponent rules:

$(a^n)^m = a^{nm}$

$a^n \cdot a^m = a^{n+m}$

Taking square both sides in [1] we have;

$\frac{896z^{15}}{225z^6} = (\frac{xz^4}{15})^2 \cdot (14z)$

Simplify:

$\frac{896z^{15}}{225z^6} =\frac{x^2z^8}{225} \cdot (14z)$

$\frac{896z^{15}}{225z^6} =\frac{14x^2z^9}{225}$

Multiply both sides by $\frac{225}{14z^9}$ we get;

$x^2 = \frac{896 z^{15}}{225z^6} \times \frac{225}{14 z^9} = \frac{896 z^{15}}{14 z^{9+6}}$

Simplify:

$x^2 = \frac{896 z^{15}}{14 z^{15}} = 64$

$x = \sqrt{64}$

Simplify:

x = 8

Therefore, the value of x is, 8

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2 years ago

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asambeis [7]

Answer:

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Step-by-step explanation:

x-y=3 equation 1

-2x+4y=-2 equation 2

so, multiplying by four the equation 1 we have

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later sum equation 3 and equation 2 we have

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3 years ago

Read 2 more answers