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azamat
2 years ago
7

Work out these approximate conversions.

Mathematics
1 answer:
Anvisha [2.4K]2 years ago
5 0

Answer:

0.002 km

Step-by-step explanation:

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The question is below​
Cloud [144]

Answer:

See below.

Step-by-step explanation:

a.

The first figure has 1 square. The second figure has a column of 2 squares added to the left. The third figure has a column of 3 squares added to the left. Each new figure has a column of squares added to the left containing the same number of squares as the number of the figure.

b.

Figure 10 has 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55 squares.

c.

The formula for adding n positive integers starting at 1 is:

1 + 2 + 3 + ... + n = n(n + 1)/2

For figure 55, n = 55.

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d.

Let's use the formula set equal to 190 and solve for n. If n is an integer, then we can.

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n(n + 1) = 380

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Answer: yes

e.

Use the formula above,

S = n(n + 1)/2, where S is the sum.

f.

n(n + 1) = 1478

38 * 39 = 1482

37 * 38 = 1406

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3 years ago
Find the number of 4-digit numbers that contain exactly two even and two odd digits.
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Math questions. Correct please
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Hello there! The answer for question 3 is 4 dogs 

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How many solutions does this equation have?<br><br> –5(6y + 7) = –17y + 7 − 10y
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Step-by-step explanation:

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