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BARSIC [14]
3 years ago
15

Express this number in scientific notation. 31 billion

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
4 0

Answer:

3.1 * 10^10

Step-by-step explanation:

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Blanca runs 8 laps around the track each day to train for an endurance race. She times each lap to practice her pacing for the r
Artist 52 [7]

Answer:

A graph shows lap time (seconds) labeled 82 to 98 on the horizontal axis and the number of laps on the vertical axis. 1 lap was 82 to 84 seconds.  4 laps were 84 to 86 seconds. 2 laps were 86 to 88 seconds. 4 laps were 88 to 90 seconds. 6 laps were 90 to 92 seconds. 5 laps were 92 to 94 seconds. 2 laps were 94 to 96 seconds. 0 laps were 96 to 98 seconds

Step-by-step explanation:

The given table is presented as follows;

\begin{array}{ccc}Day \ 1 \ lap \ times \ (seconds)&Day \ 2 \ lap \ times \ (seconds)&Day \ 3 \ lap \ times \ (seconds)\\83&87&85\\92&90&86\\91&92&91\\89&91&93\\94&92&91\\93&95&89\\88&90&88\\84&85&84\end{array}The number of laps in the range 82 to 84 seconds = 1

The number of laps in the range 84 to 86 seconds = 4

The number of laps in the range 86 to 88 seconds = 2

The number of laps in the range 88 to 90 seconds = 4

The number of laps in the range 90 to 92 seconds = 6

The number of laps in the range 92 to 94 seconds = 5

The number of laps in the range 94 to 96 seconds = 2

The number of laps in the range 96 to 98 seconds = 0

Therefore, the histogram that represents Blanca's lap times for the three days of practice is described as follows;

A graph shows lap time (seconds) labeled 82 to 98 on the horizontal axis and the number of laps on the vertical axis. 1 lap was 82 to 84 seconds.  4 laps were 84 to 86 seconds. 2 laps were 86 to 88 seconds. 4 laps were 88 to 90 seconds. 6 laps were 90 to 92 seconds. 5 laps were 92 to 94 seconds. 2 laps were 94 to 96 seconds. 0 laps were 96 to 98 seconds

5 0
3 years ago
A A tent is in the shape of a triangular prism . How much material is needed to make the tent ?
MAVERICK [17]

Answer:

135

Step-by-step explanation:

Prism

volume= area of base times distance between your 2 bases

v=bh/2

i did  b=area of base, h=height , v=volume , 1/2...so i believe that you take 6 and multiply it by 5 which equals 30 then you multiply the 30 by 9 and i got 270 then i divide by 2... so 270/2 which equals 135..so the answer is 135

(for a rectangular shape its just length times height

5 0
3 years ago
Monkey is red and monkey is blue what color is monkey?
olya-2409 [2.1K]
Is monkey blue because the first Monkey is red and it’s capitalized?
8 0
3 years ago
Read 2 more answers
I need help please help me and click the picture;-;
Advocard [28]
D. 64, because 8x16 is 128, and that divided by 2 is 64. ;)
4 0
3 years ago
In a local car lot, 1/6
Black_prince [1.1K]

Answer: \dfrac{5}{324}

Step-by-step explanation:

Given

Probability that car has a standard transmission is \frac{1}{6}

So, the probability that the car does not have transmission is

1-\dfrac{1}{6}=\dfrac{5}{6}

Probability of that 3 out of 4 randomly selected cars have standard transmissions is given by selecting 3 cars with standard deviation and then multiply by their respective probabilities

\Rightarrow P=^4C_3\cdot \left(\dfrac{1}{6}\right)^3\cdot \left(\dfrac{5}{6}\right)\\\\\Rightarrow P=4\times\dfrac{5}{6^4}\\\\\Rightarrow P=\dfrac{20}{1296}\\\\\Rightarrow P=\dfrac{5}{324}

7 0
3 years ago
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