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Gwar [14]
2 years ago
7

Find the product using identities (3x – 2)(3x+9)

Mathematics
2 answers:
lora16 [44]2 years ago
6 0

Answer:

9x^2+21x-18

Step-by-step explanation:

Rom4ik [11]2 years ago
4 0
9x^2+21x-18
3x*3x = 9x^
3x*-2= -6x
9*3x= 27x
27x-6x=21x
9*-2=-18
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Chu-Li has $100 in her piggy bank. How much will she have in her bank 40 weeks from now if she puts $1 in the bank next week, $2
BigorU [14]

Answer:

  $920

Step-by-step explanation:

The amounts added are the arithmetic sequence ...

  1, 2, 3, ... 40

The average term of this sequence is (1 +40)/2 = 20.5. The sum of the terms of this sequence is the number of terms (40) multiplied by the average term (20.5). That product is ...

  40·20.5 = 820

Chu-Li will have added $820 to her bank in 40 weeks, so the total there is ...

  $100 +820 = $920 . . . amount Chu-Li will have 40 weeks from now

6 0
3 years ago
Solve (x+1<5) n(x - 4 > -3).
vodka [1.7K]

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Step-by-step explanation:

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3 years ago
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marshall27 [118]

Answer:

the last one

Step-by-step explanation:

5 0
3 years ago
Ruth wants to purchase a new video game that costs $59.00 and several bags of chips that sell for $1.99 each. She can spend no m
allsm [11]

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Step-by-step explanation:

8 0
2 years ago
Find 5% of $43.79. $218.95 $2.19 $21.90 $2,189.50
ddd [48]
<span>43.79      *0.05= </span>2.1895
218.95    *0.05= 10.9475
2.19        *0.05= 0.1095
21.90      *0.05= 1.095
2,189.50 *0.05= <span>109.475
</span>
hope this helps
8 0
3 years ago
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