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Drupady [299]
2 years ago
6

Rewrite in simplest terms: (4x+5)+(−5x−1) pls help

Mathematics
2 answers:
IrinaVladis [17]2 years ago
7 0

Answer:

-x + 4

Step-by-step explanation:

(4x+5)+(−5x−1)

4x+5−5x−1  [Remove the parentheses]

-x + 4           [Combine Like Terms]

9966 [12]2 years ago
3 0

Answer:

-x+4

Step-by-step explanation:

Given:

(4x+5)+(−5x−1)

Solution:

To re-write this in it's simplest terms:

  • 4x+5-5x−1

<u>Combine like terms:</u>

  • <u>4</u><u>x</u><u>-</u><u>5</u><u>x</u><u>+</u><u>5</u><u>-</u><u>1</u>
  • <u>-x+</u><u>4</u>

Hence the simplest form is -x+4.

<u>Done</u><u>.</u>

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Which quadratic relation has a y-intercept of 8?
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Answer:

y = 0.5 (x^2 -2x + 16) has a y-intercept of 8.

Step-by-step explanation:

The x-coordinate of every y-intercept is zero.  To determine which of the four quadratics given here has a y-intercept of 8, we need only substitute 0 for x in each; if the result is 8, we've found the desired quadratic.

O y = 0.5(x + 2)(x + 4) becomes y = 0.5(2)(4) = 4 (reject this answer)

O y = 0.5 (x - 2)(x + 8) becomes y = 0.5(-2)(8) = -8 (reject)

O y = 0.5(x2 -2x - 16) becomes y = 0.5(-16) = -8 (reject)

<em>O y = 0.5 (x2 -2x + 16) becomes y = 0.5(16) = 8 This is correct; that '8' represents the y-intercept (0, 8).</em>

6 0
2 years ago
Mrs. Johnson's first test's data: 59, 22, 87, 44, 96, 38, 70, 85, 79. The third step in creating a Box-and-Whisker plot is to de
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Answer:

Q3 = 85

Step-by-step explanation:

Do the same thing you do to find the median for the numbers 70 to 96, i.e. exclude the numbers less than the median.

7 0
3 years ago
-4/9(-7/9) =_______?
Setler79 [48]
Multiply straight across (neg times a neg = a positive)
=28/81

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3 years ago
If two similar polygons have perimeters of 36 and 21 inches.
jek_recluse [69]

Answer:

91

Step-by-step explanation:

Two similar polygons, means a similarity would exist in both polygons

  • Perimeter of a rectangle = 2(l +w)
  • Perimeter of the larger rectangle = 36 (because it's the largest figure)
  • equation becomes  36 = 2(L + W)
  • since L = 14, it becomes = 36 = 2(14 +W)
  • 36 = 28 + 2W
  • 2W = 36 - 28 = 2w = 8
  • w = 4.

Now we assume that since the rectangles are similar, they would have similar dimensions, in this case Width. so with this, we find length  of smaller rectangle.

  • 21 = 2(L + 4) = 21 = 2L + 8
  • 2L = 21 - 8 = 2L = 13
  • L = 13/2 = 6.5.

lastly the product of the length of both polygons = 14 * 6.5 = 91.

Their Products length is 91

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2 years ago
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