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Evgesh-ka [11]
3 years ago
10

How do you expand: 4( x + 3) 4(x - 5) 2(x + 2) 4(1 - c)

Mathematics
1 answer:
Umnica [9.8K]3 years ago
3 0

Step-by-step explanation:

hello,

you just need to multiply all values inside the brackets with the value outside the bracket and then work it out as normal.

for instance,

a) 4( x + 3)

= 4x + 12

here you can see i multiplied both values by 4.

b) 4(x - 5)

= 4x - 20

c)2(x + 2)

= 2x + 4

d) 4(1 - c)

= 4 - 4c

hope this makes things clearer for you! thank you!

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Sketch the graph of y = 2 x squared + 7 x using your graphing calculator. What are the x-intercepts of this graph? a. (1, 0) and
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Answer:

<h2>b. (0, 0) and (-3.5, 0)</h2>

Step-by-step explanation:

Look at the picture.

3 0
4 years ago
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With a coupon, you can get a pair of shoes that normally costs $84 for only $72. What
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Answer:

$12, 14%

Step-by-step explanation:

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Find the amount of discount as a percentage

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What is the solution to the system of equations? {2x-2y+z=5 2x-2y+3z=7 -3x-3y+3z=9
german
2x - 2y + z = 5....multiply by -1
2x - 2y + 3z = 7
-------------------
-2x + 2y - z = -5 (result of multiplying by -1)
2x - 2y + 3z = 7
-------------------add
2z = 2
z = 2/2 = 1

2x - 2y + z = 5.....multiply by 3
-3x - 3y + 3z = 9...multiply by 2
-------------------
6x - 6y + 3z = 15 (result of multiplying by 3)
-6x - 6y + 6z = 18 (result of multiplying by 2)
-------------------add
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-12y + 9(1) = 33
-12y + 9 = 33
-12y = 33 - 9
-12y = 24
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y = -2

2x - 2y + z = 5
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7 0
3 years ago
Two families bought tickets for the big football game. One family ordered 2 adult tickets and 3 children's tickets for a total o
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The cost per adult ticket is $13 and the cost per children ticket is $8

Step-by-step explanation:

Let the cost of adult tickets be 'x'

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[3(50-3y) /2 ]+ 4y = 71

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x = (50-3y) /2

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The cost per adult ticket is $13 and the cost per children ticket is $8

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1.9.2) If the programme started at 12:30 pm, at what time will it end?​
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Answer:

We need to know what the program is...

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