3 years ago

How do you express this in scientific notation?

Mathematics

1 answer:

Ber [7]3 years ago

8 0

5x10^9
Just find out how many zeros there are

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Which of the following equations has exactly one solution? A. 4 x − 4 + 2 x = 6 x − 4 B. 4 x − 8 = 4 ( x − 4 ) C. 3 x + 5 = 2 x

USPshnik [31]

Answer:

C. 3x + 5 = 2x -6

Step-by-step explanation:

8 0

3 years ago

Which pair shows equivalent expressions?

Dmitry_Shevchenko [17]

Which pair shows equivalent expressions?

A.2(2/5x + 2)=2 2/5x + 1

B.2(2/5x + 2)=4/5x + 4

C.2(2/5x + 4)=4/5x + 2

D.2(2/5x + 4)=2 2/5x + 8

Solution:

$2(\frac{2}{5}x + 2)$

Let us distribute 2 inside the parenthesis.

That is, we use distributive property:

a(b+c)=ab+ac

$2(\frac{2}{5}x + 2) =\frac{2*2}{5}x+2*2$

So, $2(\frac{2}{5}x + 2) =\frac{4}{5}x+4$

Answer:Option (b)

$2(\frac{2}{5}x+4)$

Applying distributive property, a(b+c)=ab+ac

$2(\frac{2}{5}x+4) =2*\frac{2}{5} x+2*4$

$2(\frac{2}{5}x+4) =\frac{2*2}{5} x+2*4$

$2(\frac{2}{5}x+4) =\frac{4}{5} x+8$

So, Option (B) is correct.

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3 years ago

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A frost has caused a temporary spike in the price of orange juice. the price is now $10 a gallon. before the frost, the price wa

Tema [17]

It is $6 more now than before...maybe you were looking for percent increase?

%change=100(final-initial)/initial

%change=100(10-4)/4=150% increase

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3 years ago

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Solve by the substitution method 7x+6y = -17 -3x+y =18

Novay_Z [31]

6 is your answer so it's like this x=3 y=6 or x=6 y=3

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3 years ago

What is the domain of the function y=?x-1?<br> 00 0 -1 00 OOO<br> 1

SVETLANKA909090 [29]

Answer:

The set of all real numbers

Step-by-step explanation:

The domain is the set of all real numbers (both positives and negatives including zero.

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3 years ago