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iragen [17]
3 years ago
11

Expand and simplify

Mathematics
1 answer:
Murrr4er [49]3 years ago
7 0
A. 5(3p + 2) - 2(4p - 3)
    5(3p) + 5(2) - 2(4p) + 2(3)
    15p + 10 - 8p + 6
     15p - 8p + 10 + 6
      7p + 16

b. 4(2x + 3) - (x - 2)
    4(2x + 3) - 1(x - 2)
    4(2x) + 4(3) - 1(x) + 1(2)
    8x + 12 - x + 2
    8x - x + 12 + 2
    7x + 14

c. (x + 3)(x - 2)
    x(x - 2) + 3(x - 2)
    x(x) - x(2) + 3(x) - 3(2)
    x² - 2x + 3x - 6
    x² + x - 6

d. (x - 1)(x - 2)
    x(x - 2) - 1(x - 2)
    x(x) - x(2) - 1(x) + 1(2)
    x² - 2x - x + 2
    x² - 3x + 2

e. (x - 3)(x - 2)
    x(x - 2) - 3(x - 2)
    x(x) - x(2) - 3(x) + 3(2)
    x² - 2x - 3x + 6
    x² - 5x + 6

f. (2p + 3)(p - 2)
   2p(p - 2) + 3(p - 2)
   2p(p) - 2p(2) + 3(p) - 3(2)
   2p² - 4p + 3p - 6
   2p² - p - 6

g. (3t - 2)(2t + 3)
    3t(2t + 3) - 2(2t + 3)
    3t(2t) + 3t(3) - 2(2t) - 2(3)
    6t² + 9t - 4t - 6
    6t² + 5t - 6

h. (2x - 5)(3x - 2)
    2x(3x - 2) - 5(3x - 2)
    2x(3x) - 2x(2) - 5(3x) + 5(2)
    6x² - 4x - 15x + 10
    6x² - 19x + 10
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Answer:

<u>x = 62 words</u>

Explanation:

→ <em>We write the data problems. </em>

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→ We must find: <em>What's Cynthia typing rate in words per minute?</em>

372 words .............6 minutes

x words ..................1 minute

x = 372 words * 1 minute/ 6 minutes

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Add using the number line. ​ −0.5 + (−1.7) ​
Rudik [331]

Answer:

- 0.5 - 1.7 = - 2.2

Step-by-step explanation:

We need to add two numbers using the number line.

Steps to Add Numbers on the Number Line:

When we add a negative numbers that we move the point to the left of the number line.

We are adding two negative numbers. Locate the first number which is -0.5. Then, add negative 1.7 to it which means moving the existing point 1.7 units to the left of the number line.

So, we get 2.2 on the left.

2.2 is left side it means sign is negative.

Final answer is -2.2

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that's what I did go to answers. com that's where I get all my answers that brainly doesn't provide that or ask a tutor

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