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Masteriza [31]
2 years ago
5

Last year, 140 people in a community had cell phones. This year, the number of people in the community with cell phones has incr

eased by 65%
Mathematics
1 answer:
Murljashka [212]2 years ago
6 0

the number has been increased by 79

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aivan3 [116]
(10/17) / (-15/17) =
10/17 * - 17/15 =
- 10/15 =
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2.75 / -2.2 =
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(-2 3/5) / (3/5) =
- 13/5 * 5/3 =
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(2 1/4) / (3/4) =
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7 0
2 years ago
Expand (4x-3y)^4 using pascal's triangle ...?
jenyasd209 [6]
Using row 4: 

<span>coefficients are: 1, 4, 6, 4, 1 </span>

<span>a^4 + a^3b + a^2b^2 + ab^3 + b^4 </span>

<span>Now adding the coefficients: </span>

<span>1a^4 + 4a^3b + 6a^2b^2 + 4ab^3 + 1b^4 </span>

<span>Substitute a and b: </span>

<span>a = 4x </span>
<span>
b = -3y </span>

<span>1(4x)^4 + 4(4x)^3(-3y) + 6(4x)^2(-3y)^2 + 4(4x)(-3y)^3 + 1(-3y)^4 </span>

<span>Now simplify the above: </span>

<span>256x^4 - 768x^3y + 864x^2y^2 - 432xy^3 + 81y^4 </span>
8 0
3 years ago
Tara has 2000 in her savings account David has 1/10 as much as Tara in his account how much does David have in his savings accou
Paraphin [41]
200$ because if you do 2000dovided by 10 then it will equal=200 so loook 200x10=2000 so 1/10=200
7 0
3 years ago
What is the value of the function at x = −3?
zlopas [31]

Answer:

the answer is D

Step-by-step explanation:

(0, -3) , (1, -3) , (2, -3)

Hope this helps! :)

~Zane


4 0
3 years ago
Read 2 more answers
A city planner makes a scale drawing of a proposed playground. The length of the actual playground is 78 feet, and the width is
Allushta [10]

Answer:

  B)  6.5 inches by 3.5 inches

Step-by-step explanation:

Multiplying the actual dimensions by the scale gives the scale dimensions:

  (0.5 in)/(6 ft) × {78 ft, 42 ft}

  = {39/6 in, 21/6 in}

  = {6.5 in, 3.5 in}

The size on the scale drawing is 6.5 inches by 3.5 inches.

5 0
3 years ago
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