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oksian1 [2.3K]
3 years ago
10

Write 456 in expanded notation using powers of 10​

Mathematics
1 answer:
salantis [7]3 years ago
4 0

Answer:

400+50+6

Step-by-step explanation:

456 means 400+50+6

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Someone please help ME I WILL MARK YOU BRAINLIEST
nikklg [1K]

Answer:

It is 3. Sorry if it's wrong.

Step-by-step explanation:

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3 years ago
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A train goes from springfield, MA, to boston at 40 mph. On the way back, it returns with a speed 80 mph. If it takes an hour les
alina1380 [7]

The average speed for the entire journey will be 53.333 miles per hour.

<h3>What is the average speed?</h3>

The average speed is the ratio of the total distance traveled to the total time taken by the body. Its unit is m/sec.

The distance from the Springfield, MA, to Boston is, L

v₁ is the velocity during traveling from Boston to Springfield, MA

v₂ is the  velocity during traveling from Springfield, MA to Boston

t₁ is the time needed to travel from Boston to Springfield, MA

t₂ is the time needed to travel from Springfield, MA to Boston

t is the total time period of the journey

v is the average speed

From the formula of distance;

Distance = speed × time

The speed of train for the going from Springfield, MA, to Boston is 40 mph. The time period is calculated as;

L = v₁ × t₁

t₁ = L/v₁

t₁ = L/40

The speed of train for the going from Boston to Springfield, MA, is 80 mph. The time period is calculated as;

L = v₂ × t₂

t₂ = L/v₂

t₂ = L/80

The total time is taken;

t = t₁ + t₂

t =  (L/40)+( L/80)

t=3L/80

The ratio of total distance traveled to the total time spent by the body is known as average speed, calculated as;

Average speed = Total distance / Total time

v = 2L / (3L/80)

v= (2L × 80)/3L

v = 160 / 3

v = 53.333 miles per hour.

Hence the average speed for the entire journey will be 53.333 miles per hour.

To learn more about the average speed, refer to the link;

brainly.com/question/12322912

#SPJ1

4 0
1 year ago
What is the range of f(x)?
adoni [48]

Answer:

best ans is { f(x)| –∞ < f(x) ≤ 4}

Step-by-step explanation:

usually to find the range of a fn, u need to see what the value can be. the graph show only a small range of x values. but u can see f(x) is definitely <u><</u>  4. so the ans is { f(x)| –∞ < f(x) ≤ 4}


6 0
3 years ago
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HELP I WILL GIVE BRAINLIEST
ddd [48]
False because it is only showing the quarter
4 0
3 years ago
When I graphed the linear​ function, it turned out to be a wavy curve.
Elden [556K]

Answer:

B.  The statement does not make sense because a linear function has a​ straight-line graph.

Step-by-step explanation:

Linear functions have a general form y = m*x +b and only yield straight-line graphs. Therefore, the statement does not make sense, either the graphed function is not linear, or there was an error in the graphing process. The answer is alternative B.

*Note that alternative D is wrong because it is incomplete, since linear functions can have a rate of change that increases (m > 0), decreases (m < 0) or that is zero (m = 0).

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3 years ago
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