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omeli [17]
2 years ago
8

2

Mathematics
1 answer:
Vera_Pavlovna [14]2 years ago
4 0

Answer:

A. 0.0000992666

Step-by-step explanation:

E is another way of showing that something is "10 to the power of..."

To convert a number from E notation to standard form, you have to move the decimal point by the amount that is beside the E.

If the number is negative, you move the decimal point to the left. If the number is positive you the decimal point to the right.

Here, a -5 is beside the E. That means we take the number 9.92666 and move the decimal point left 5 times.

Remember that as we move a decimal point to the left, the value decreases.

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Tom went on a bike ride to the store 3 miles away. If it took Tom 12 of an hour to get there and 23 of an hour to get back, what
anzhelika [568]

Answer: 0.1714 miles / hour

Step-by-step explanation:

Given the following :

Distance to the store = 3 miles

Time taken to get to store = 12 hours

Time taken to return = 23 hours

The average rate of speed for the trip =?

Average Speed = total distance traveled / total time taken

Total distance traveled = 2 × 3 miles = 6 miles

Total time taken = 12 + 23 = 35 hours

Average speed = 6 miles / 35 hours

Average speed = 0.1714 miles / hour

3 0
2 years ago
Find X and Y please explain
Alex777 [14]

In this diagram we see that 80 and 3x+4y are both vertical angles and vertical angles are congruent or always equal so we can set those two equations equal to each other then we can see that a line splits two angles making them supplementary (they equal 180 degrees) So we can have another equation, the two equations are:

3x+4y=80 and 3x+4y+7x-8y=180 (add like terms to simplify and get 10x-4y=180

Then use elimination to get rid of the y variables

10x-4y=180 (plus)

+3x+4y=80 (the negative 4 and positive 4 cancels each other out so you are left with:)

13x=160 (divide by x)

x=12.30769 which can be rounded to x=12.31

Then we have to plug in x into the first equation:

3(12.31) + 4y = 80

36.93 + 4y = 80 (subtract 36.93 from 80)

4y = 43.07 (divide)

y=10.7675 or rounded to 10.77

so x=12.31 and y=10.77


5 0
2 years ago
Select the expression that is equivalent to 48 + 12.
Natalija [7]
Answer to your question : 12(4+1)
8 0
3 years ago
A square platter has sides that are 8 inches long. What is the platter's area?
IceJOKER [234]
Because its a square it makes every side the same length, so you would need to multiply 8 times 8.
8 x 8 = 64
Length x Height
5 0
3 years ago
Read 2 more answers
What is the probability of picking a blue marble and spinning pink?
lorasvet [3.4K]

Answer:

Im sorry, but could you elaborate on the number of marbles there are to pick from, and the number of spinning choices?

Step-by-step explanation:

7 0
3 years ago
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