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hjlf
3 years ago
10

Round 128 to the nearest hundred

Mathematics
2 answers:
irinina [24]3 years ago
3 0
128 to the nearest 100 is 100
kipiarov [429]3 years ago
3 0
Round 128 to the nearest hundred

It will be 100 because if you underline the 1 and circle the 2 you will know that there is 4 or less let it ress 5 or more raise the score so it’s 2 so let the one ress and make the 28 a zero
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2 years ago
The value of 8y 2 –5y +1 when y= 1 is …………​
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4

Step-by-step explanation:

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Alex has three less than four times as many baseball cards as his brother jon. If they have 407 baseball cards. how many does ea
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3 years ago
The length of a rectangle is nine inches more than its width. Its area is 486 square inches. Find the width and length of the re
Elan Coil [88]

Answer:

  • width: 18 in
  • length: 27 in

Step-by-step explanation:

The relations between length (L) and width (W) are ...

  W +9 = L

  LW = 486

Substituting gives ...

  (W+9)W = 486

  W^2 +9W -486 = 0 . . . put in standard form

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  W = 18 . . . .  the positive solution

The width of the rectangle is 18 inches; the length is 27 inches.

_____

<em>Comment on factoring</em>

There are a number of ways to solve quadratics. Apart from using a graphing calculator, one of the easiest is factoring. Here, we're looking for factors of -486 that have a sum of 9.

486 = 2 × 3^5, so we might guess that the factors of interest are -2·3² = -18 and 3·3² = 27. These turn out to be correct: -18 +27 = 9; (-18)(27) = -486.

3 0
3 years ago
What is 4% of the number 250
Alik [6]
The answer should be 10 I think, because if u multiply 250 * 4% u get 10.

Hope I'm right.
4 0
3 years ago
Read 2 more answers
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