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Elena-2011 [213]
3 years ago
15

Which is a correct first step in solving the inequality –4(2x – 1) > 5 – 3x?

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
3 0

Answer:

Distribute -4 to get -8x + 8 > 5 - 3x

sdas [7]3 years ago
3 0

Answer:

Distribute –4 to get –8x + 4 > 5 – 3x

Step-by-step explanation:

The first thing we need to do when solving an inequality (or an equality) is get rid of the parenthesis.

In this case, we could divide on both sides by -4 but that way we would get another parenthesis on the right side of the inequality and we have to start again.

The easiest way is to distribute the -4 in the parenthesis and get

-4(2x-1) = -4*2x -4*(-1) = -8x + 4

Therefore, the correct answer is the first one.

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Given the set of ordered pairs: {(1,3), (2,7), (x,5), (6,4)}.
MrMuchimi

Answer:

2

Step-by-step explanation:

2 is a value of x that would not make the set a function because a function can't have multiple coordinates wit hthe same domain (x-coordinate). 2 is a domain that has already been used in the point (2,7). If this is used in (x,5), the point would become (2,5) and repeat a domain.

Note:

The x-coordinate could also be 1 or 6 because they have been used as domains as well.

Hope it helps!

8 0
3 years ago
What is the rule for the following geometric sequence? 64,128,256,512...
professor190 [17]

Answer:

B

Step-by-step explanation:

The explicit rule for a geometric sequence is

a_{n} = a₁ (r)^{n-1}

where a₁ is the first term and r the common ratio

Here a₁ = 64 and r = \frac{a_{2} }{a_{1} } = \frac{128}{64} = 2 , then

a_{n} = 64 (2)^{n-1} → B

8 0
3 years ago
Read 2 more answers
140cm<br> 3 cm<br> 12 cm<br> 8 cm<br> Find surface area?
Mashcka [7]

Answer:

3cm espero te sirva jajajajaja

8 0
3 years ago
N/5 + -6 = 9 <br> What is n ?
Tatiana [17]
Answer: 75

work: n/5 + -6 = 9
n/5 = 9+ 6
n/5 = 15
n = 15 x 5
n= 75
4 0
3 years ago
What is the value of x in the equation <br> -5/8x=-160?
Helen [10]

Answer:

x= 1/256

Step-by-step explanation:

1. multiply both sides by 8x (answer: -5= 8x*-160)

2. divide both sides by -160 (answer: -5/-160 or 1/32 =8x)

3. divide both sides by 8 (answer: 1/256 = x

4. check your answer: -5/(8*1/256)= -160

5 0
3 years ago
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