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ser-zykov [4K]
3 years ago
14

Round the decimal 7.86 ?

Mathematics
1 answer:
solniwko [45]3 years ago
8 0

Answer:

The answer would be 9.0.

Step-by-step explanation:

Hope it help you.

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(9×100)+(8×10)+(7× <br> 1000<br> 1<br> ​<br> )
ivolga24 [154]

Answer:

7980

Step-by-step explanation:

900+80+7000=7980

8 0
2 years ago
Need help fast please with these 5 questions
Natali [406]

Answer:

16.....................................

  • 6⁹*6ⁿ = 6¹²
  • 6⁹⁺ⁿ = ¹²
  • 9 + n = 12
  • n = 3

17.....................................

  • 7⁸/7ⁿ = 7³
  • 7⁸⁻ⁿ = 7³
  • 8 - n = 3
  • n = 5

18.....................................

  • 15ⁿ = 1
  • 15ⁿ = 15⁰
  • n = 0

19.....................................

  • 1/10⁵ = 10ⁿ
  • 10⁻⁵ = 10ⁿ
  • -5 = n
  • n = -5

20.....................................

  • (8²)ⁿ = 8¹²
  • 8²ⁿ = 8¹²
  • 2n = 12
  • n = 6

3 0
2 years ago
A rectangle with an area of x2 - 4x – 12 square units is
tino4ka555 [31]

Hello there! :)

Answer:

First choice, (x + 2) and (x - 6).

Step-by-step explanation:

To solve for the dimensions, recall that the formula for the volume of a rectangle is:

A = l × w

Simply factor x² -4 - 12. Find two numbers that add up to -4 and multiply into -12.

2, -6 satisfy these conditions. Use these numbers to write this equation in factored form:

(x + 2) (x - 6). Thus, the first option is the correct answer.

5 0
3 years ago
Read 2 more answers
3 1 - 2.6<br>________<br>0.05<br>​
olya-2409 [2.1K]

Work:

\frac{31 - 2.6}{0.05}

\frac{28.4}{0.05}

Answer:

567. \frac{}{9}

6 0
3 years ago
I need help with this ​
Korvikt [17]

Answer:

D.

Step-by-step explanation:

According to converse of the Pythagorean Theorem, that if the square of the third side (longest side) of a triangle equals the sum of the other two shorter sides, therefore, the triangle formed must be a right triangle.

From the side lengths given, the following satisfies the Pythagorean triple:

5² + 12² = 13².

Therefore, the procedure to use to confirm the converse of the Pythagorean Theorem would be to draw the two shortest side, 5 cm and 12 cm, so that a right angle will be between them. The side measuring 13 cm should therefore fit in to form a right triangle.

7 0
3 years ago
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