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enot [183]
2 years ago
5

Simplify the expression -4x – 7+3 – 8x

Mathematics
2 answers:
julia-pushkina [17]2 years ago
5 0

Answer:

-12x - 4

Step-by-step explanation:

if you can please mark brainlyist

AlladinOne [14]2 years ago
4 0

Answer:

-12x-4

Step-by-step explanation:

Combine like terms

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At top speed, a boat can cover 1,533 kilometers in 3 hours what unit rate does the boat travel during this time frame?
svlad2 [7]
The unit rate that the boat can travel during this time frame is 511 kilometers in 1 hour.

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4 0
3 years ago
What are the domain and range of the function below?
jekas [21]

Answer:

Domain: all real numbers

Range: all real numbers greater than or equal to -2

Step-by-step explanation:

The domain is the set of x-coordinates.

It is the set of real numbers since x can be any real number.

The range is the set of y-coordinates.

The minimum value for y is -2. y can be -2 or any real number greater than -2.

Answer:

Domain: all real numbers

Range: all real numbers greater than or equal to -2

6 0
3 years ago
Read 2 more answers
Today only a sofa is being sold at a 24% discount . The sale price is $513. What was the price yesterday?
babymother [125]
I couldn't solve the problem.
8 0
2 years ago
Factorise completely
Andreyy89
1. Number that adds up to -12 and multiplied by the same # that gives u -13. Set it up like this because both are negative so, u need 1 negative and 1 positive.
(x-13)(x+1)

2. Same rule applies. GCF
8y(4y+1)

3. (x+3)(x-3)
4 0
2 years ago
Factorise the following 4(x-1)²-9 need solution
kumpel [21]

Answer:x= 5/2 x= -1/2


Step-by-step explanation:

4(x-1)2-9

4(x2-2x+1) - 9

4x2 - 8x + 4 - 9

4x2 - 8x - 5

4x2 +2x - 10x - 5

2x(2x+1) - 5(2x+1)

(2x-5)(2x+1)

therefore, x= 5/2 x= -1/2




mark brainliest plzz

6 0
2 years ago
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