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Bad White [126]
3 years ago
14

2 Points

Mathematics
1 answer:
brilliants [131]3 years ago
4 0

Answer: A

Step-by-step explanation:

(f+g)(x) means f(x)+g(x). Since we are given f(x) and g(x), we cna add them together.

x+8+(-4x-3)

x+8-4x-3

-3x+5

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In a sale all prices are reduced by 10% .What is the sale price of an article marked AED 75.
rusak2 [61]

Answer:

67.5

Step-by-step explanation:

  1. When you calculate the 10% of AED75, it is equal to AED7.5
  2. Then you subtract AED7.5 from AED75 which is AED67.5
5 0
3 years ago
And evaluate x(- y + z) for x=-1 y=-2 and z=5
IRISSAK [1]
Multiply x to (-y) then x to (z)
mean x(-y)+ x(z)
plug in the variable given
(-1)(-(-2)+5)
-2-5=-7
5 0
3 years ago
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Multiply: (5x − 2)(4x2 − 3x − 2)
Alex Ar [27]
Hello there!

(5x - 2)(4x² - 3x - 2)

Use the distributive property

=(5x)(4x²) + (5x)(-3x) + (5x)(-2) + (-2)(4x²) + (-2)(-3x)² + (-2)(-2)

= 20x³ - 15x² - 10x - 8x² + 6x + 4

= 20x³ - 23x² -4x + 4


As always, it is my pleasure to help students like you. Let me know if you have any questions.
3 0
3 years ago
Read 2 more answers
5. (9r 3 + 5r 2 + 11r) + (-2r 3 + 9r - 8r 2)
ad-work [718]

Answer:

7r³ - 3r² + 20r

Step-by-step explanation:

(9r³ + 5r² + 11r) + (-2r³ + 9r - 8r²)

You can get rid of the parentheses since there is nothing to distribute.

9r³ + 5r² + 11r - 2r³ + 9r - 8r²

Combine like factors.

7r³ - 3r² + 20r

3 0
3 years ago
When you open a stepladder, you use a brace on each side of the ladder to lock the legs in place. Explain why the triangles form
navik [9.2K]

Answer:

so it can have a better balence

Step-by-step explanation:

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3 years ago
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