3 years ago

Please help

Mathematics

2 answers:

Zielflug [23.3K]3 years ago

5 0

The scientific notations is 2.9x10^9

NNADVOKAT [17]3 years ago

5 0

The scientific form is 2.9 * 10^9

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To write 10-7 in standard form, you would write a decimal number with:

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10^-7 = 0.0000001

Its the 3rd choice.

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Richard is paid by the hour here and $50 for a four hour workday how much does he earn for a 5 1/2 hour workday

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$64.75

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3 years ago

15/124 x 230/30 divided by 230/124

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3 years ago

Read 2 more answers

2, Nine people fit comfortably in a 3 ft. by 3 ft. area. Use this value to

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Option C $Ration =\frac{9}{3X3}$

Size of crowd: $\frac{9}{3 \cdot 3} \cdot 24 \cdot 5280$

Given :

Nine people fit comfortably in a 3 ft. by 3 ft. area

To find : we need to estimate the size of a crowd that is 8 feet deep and 1 mile long. we need to determine the ratio as well

Ratio = number of people / total area

$Raio=\frac{9}{3X3}$

To find the size of the crowd , convert yards into feet and mile into feet

1 yard = 3 miles

8 yards= 3 times 8 = 24 feet

1 mile = 5280 feet

Now we find the area in feet

$24 \cdot 5280$

size of the crowd=ratio times the area in feet

$\frac{9}{3 \cdot 3} \cdot 24 \cdot 5280$

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3 years ago

Martin takes a test that has five multiple choice questions. Each question has three possible

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Answer:

The answer is 243

Step-by-step explanation:

Since there are 3 answers for each question and a total of 5 questions, you could do 3*3*3*3*3 or 3^5. Both will equal 243. 243 is the amount of possible different combinations that exist in this problem.

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2 years ago