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kvasek [131]
4 years ago
6

What is 2.1 × ten exponent nine in scientific notation?

Mathematics
1 answer:
Sloan [31]4 years ago
5 0
Looks like all you have to do is to translate this expression into symbols:

2.1*10^9
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What is the solution to the equation 9(w – 4) – 7w = 5(3w – 2)?
cluponka [151]

Answer:

-2

Step-by-step explanation:

9w-36-7w=15w-10

2w-36=15w-10

-13w=26

w=26/(-13)

w=-2

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The total of 42, 75, 189, 301, and 728 is
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The total means add so,
42 + 75 + 189 + 301 + 728 = 1,335
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Help it’s 50% of my grade
Ierofanga [76]

Answer:

(1/2)x+(1/4)=x

x=0.5

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x=3

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x=0.5

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Step-by-step explanation:

(1/2)x+(1/4)=x

x-0.5x=0.25

0.5x=0.25

x=0.5

3x+3=2(x+7)

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3x-2x=14-3

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2x-10+7=x+8

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x=11

0.8x+5=0.2(40-x)

0.8x+5=8-0.2x

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5(x-1)-6x=-11x

5x-5-6x=-11x

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6x-4x-x=16+7-12

x=11

(1/2)(x+8)+(3/2)x=10

0.5x+4+1.5x=10

2x=6

x=3

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Answer:

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