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sertanlavr [38]
3 years ago
15

Every two days he’s trying to spend 1.75 hours observing dolphins and 2.5 hours observing sea lines at this rate how many total

hours will the scientist spend a observing dolphins and sea lions in 10 days
Mathematics
1 answer:
inysia [295]3 years ago
5 0
The scientist was observing for 42.5 hours.





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Suppose 86% of 50 people at a law firm like their job. How many people like their job.
solniwko [45]
To find 86% of 50, you do 50*.86 (because .86 is the decimal form of the percentage 86%)

50*.86=43 people

Hope this helps
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3 years ago
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13. The radius of Earth is approximately 6.4 x 100 m. Use the formula V = 4/3pr^3
romanna [79]

<u>We are given</u>

  • Radius of Earth; 6.4 x 100 meters = 640 meters

Clearly, the shape of the earth is a sphere. Thus, to determine the volume of the earth, we will use a formula that determines the volume of a sphere.

\implies \text{Volume of sphere =} \   \dfrac{4\pi r^{3}}{3}

When we substitute the radius in the formula, we get;

\implies\text{Volume of sphere} = \dfrac{4\pi (640)^{3}}{3}

\implies\text{Volume of sphere} = \dfrac{4\pi (640)(640)(640)}{3}

Take π as 3.14

\implies\text{Volume of sphere} = \dfrac{4\pi (640)(640)(640)}{3}

\implies \text{Volume of sphere} = \dfrac{4(3.14)(640)(640)(640)}{3}

Simplify the numerator;

\implies \text{Volume of sphere} = \dfrac{4(3.14)(640)(640)(640)}{3}

\implies \text{Volume of sphere} = \dfrac{3292528640}{3}

Divide the numerator by 3;

\implies \text{Volume of sphere} = \dfrac{3292528640}{3}

\implies \text{Volume of sphere} = \boxed{1097509546.67 \ \text{m}^{3} } \ \ \ (\text{Estimated})

4 0
2 years ago
Which equation exemplifies the Associative property of addition?
ladessa [460]

Answer:

The correct answer is D) 7+(3+1)=(7+3)+1

Step-by-step explanation:

The associative property of addition states that it doesn't matter how you group numbers inside of parenthesis, it gives you the same answer. So even though the groupings are different in that example, the answer is still the same.

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3 years ago
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The blue dot is at what value on the number line?
denpristay [2]
I don’t really know where the blue dot is
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4 years ago
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Please help with one is right
algol13

Answer:

Quon is right

Step-by-step explanation: 2x3=6 square in not 2.4 square in

5 0
2 years ago
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