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Ann [662]
3 years ago
6

What is the middle term in the simplified product for (x + 3)(x – 4)

Mathematics
1 answer:
Amanda [17]3 years ago
7 0

Answer:

-x

Step-by-step explanation:

You can distribute:

(x + 3)(x – 4)

x (x + 3) – 4(x + 3)

x² + 3x – 4x – 12

x² – x – 12

Or you can use FOIL (first, outer, inner, last).

(x + 3)(x – 4)

x² – 4x + 3x – 12

x² – x – 12

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Aisha wants to paint the four walls of her living room.
sergiy2304 [10]

The total amount Aisha would pay to paint her room is $54.

<h3>What is the cost of painting the rooms?</h3>

The first step is to determine the area of the walls. The walls have the shape of a rectangle. Thus, the formula for the area of a rectangle would be used to determine the area of the wall.

Area of the three walls without a door : 3 x (length x width)

3 x (2.4 x 5.2) = 37.44 m²

Area of the fourth wall with a door : area of the wall - area of the door

(2.4 x 5.2) - (2 x 0.8) = 10.88m²

Total area of the walls : area of the three walls + area of the wall with the door

10.88m² + 37.44 m² = 48.32 m²

The next step is to determine the number of tins that would be needed:

48.32 /12 = 4.03

5 tins would needed

Cost of the 5 tins: (4 x 12) + (0.5 x 12) = $54

To learn more about how to calculate the area of a rectangle, please check: brainly.com/question/16595449

#SPJ1

3 0
2 years ago
in a geometrical progression,the product of the 2nd and 4th term is double the the 5th terms. and the sum of the first four term
ahrayia [7]

Answer:

solve by your self dont depend on other!

4 0
3 years ago
A line has slope 5/6 and y-intercept-3
viva [34]

Answer:

The equation would be y = 5/6x - 3

Step-by-step explanation:

8 0
3 years ago
Help me with these 3 questions please. aH-
Vanyuwa [196]

Answer:

1) 2/7; 43; 3/7

2) C

3) 30; 30; 10; is not; 10; is not

Step-by-step explanation:

1) y + 4/7 = 6/7

y = 6/7 - 4/7

y = 2/7

17 + b = 60

b = 60 - 17

b = 43

6/7 = m + 3/7

m = 6/7 - 3/7

m = 3/7

2) 11.5 - x = 5.25

x = 11.5 - 5.25

x = 6.25

3) he can substitute 30 for t.

He can then multiply ⅓ by 30 to get a product of 10 (⅓ × 30 = 10).

Since 15 is not equal to 10, Harry's solution is not correct

3 0
3 years ago
What is (0.5x + 15) + (8.2x- 16.6)
nadya68 [22]
1.6 I think I’m sorry if it’s incorrect
3 0
3 years ago
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