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Phantasy [73]
3 years ago
6

Explain how to do this plz

Mathematics
2 answers:
AVprozaik [17]3 years ago
8 0
The final answer is (7r^2 - 6) (7r + 6)
r-ruslan [8.4K]3 years ago
8 0
49r³+42r²-42r-36
=(49r³+42r²)+(-42r-36)
(7r+6)(7r²-6)
7r²-6
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Answer:

whats the question

Step-by-step explanation:

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3 years ago
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Germaine ate 1/4 bag of popcorn that was 1/2 full.
valentina_108 [34]
Simply multiply the fractions.

1/4 * 1/2 = 1/8  Choice A. 

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At a local school, 940 students each wrote 40 letters in students in another country. How many letters were written in all?
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37,600

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3 years ago
Joyce's mother buys some shares of Company A on Day 0.
antoniya [11.8K]

Answer:

(i) 4000

(ii) $5.00

Step-by-step explanation:

Let no. of shares of Company A be X

Let share price of Company B on Day 7 be $y

Share price of Company B on Day 12 = $(y-0.50)

(i)

Consider Day 7:

4.60x - 2000y = 7400................ (1)

Consider Day 12:

4.80x - 5000(y-0.50) = -5800

4.80x - 5000y + 2500 = -5800

4.80x - 5000y = -8300............... (2)

(1)*2.5:

11.5x - 5000y = 18500................. (3)

(3)-(2):

11.5x - 4.80x - 5000y + 5000y = 18500 + 8300

6.70x = 26800

x = 4000

(ii)

Sub. x = 4000 into (1):

4.60(4000) - 2000y = 7400

-2000y = 7400 - 18400

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y = 5.5

Share price of Company B on Day 12

= 5.50 - 0.50

= $5.00

3 0
3 years ago
Identifying functions worksheet
cestrela7 [59]

Answer:

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  3. Not a function
  4. Function
  5. Function
  6. Not a function

7 0
2 years ago
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