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RUDIKE [14]
3 years ago
15

Multiply: (3x – 5)(–x + 4)

Mathematics
2 answers:
shutvik [7]3 years ago
8 0

Answer:

-3x^2+17x-20

Step-by-step explanation:

(3x – 5)(–x + 4)

-3x^2+12x+5x-20

-3x^2+17x-20 is your simplified version

LiRa [457]3 years ago
4 0

Answer:

Step-by-step explanation:

(3x – 5)(–x + 4)

(3x)(–x) + (3x)(4) + (–5)(–x) + (–5)(4).

-3x^2+12x +5x -20

-3x^2+ 17x -20

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16. Mum went shopping at the vegetable stand.
kondaur [170]

Good evening

Answer:

<em>a) the cost of one apple is €</em><em>0.9</em>

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Step-by-step explanation:

Consider P the price of a pineapple

               A the price of an apple

A pineapple costs six times as much as an apple means P = 6A

Mum paid €7.20 for one pineapple and two apples means P + 2A = 7.20

then

6A + 2A = 7.20

then

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then

A = €0.9  

Since P = 6A then P = 6×(0.9) = €5.4

the cost of two pineapples and six apples

= 2P + 6A

= 2P + P

= 3P

= 3×(5.4)

= €16.2

     

7 0
4 years ago
1/4 of a number decreased by three is at least two
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Answer:

¹/₄x - 3 ≥ 2

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Step-by-step explanation:

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