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Anika [276]
3 years ago
6

Scientific notation 384400km

Mathematics
1 answer:
lianna [129]3 years ago
3 0
3844 x 10²
all you need to do is think about the 10th power
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bogdanovich [222]

Answer:

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2 years ago
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Step-by-step explanation:

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2 years ago
Write a system of two equations in two variables to solve the problem. when fully extended, a ladder is 28 feet in length. if th
Alisiya [41]
Let the base of the ladder be x ft and the extension be y ft.

"when fully extended, a ladder is 28 feet in length."

means: x+y=28

"<span>the extension is 4 feet shorter than the base</span>"

means: y=x-4,   that is x-y = 4, (taking y to the side of x, and -4 to the other side of x and y)

thus, we have the system of equations:

1) x+y= 28 

2) x-y=4

adding the 2 equations, we have:

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x=32/2=16


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Answer: Base: 16, Extension 12
5 0
2 years ago
at the craft store, Alan bought a bag of orange and green marbles. the bag contained 25 marbles, and 40% of them where orange. h
krek1111 [17]

Answer:

There are 10 orange marbles

Step-by-step explanation:

There are 25 marbles in the bag

40% are orange

To determine the number of orange marbles, we multiply the total number of marbles  by the percent that are orange

25 *40% = number of orange marbles

25*.40

10

There are 10 orange marbles

7 0
2 years ago
If f= {(2, 3), (5,7), (3, 3), (5, 4), (9, 1)), what is the range?
Scilla [17]
<h3>Answer: {1,3,4,7} which is choice D</h3>

To list out the range, you list the y coordinate values of each point of the function. Each point is of the form (x,y). Any duplicate values are tossed out when we talk about a set. All we care about are the unique values. It's common practice to sort the values of the set from smallest to largest.

Side note: Choice A is listing the x values of each point, which is the domain.

5 0
3 years ago
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