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Ksju [112]
2 years ago
13

Which compound inequality can be used to solve the inequality 3x+2>7

Mathematics
1 answer:
kipiarov [429]2 years ago
3 0

Answer:

3x + 2 < –7 or 3x + 2 > 7

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Which of the following is a polynomial with roots 3, 5i, and −5i?
jek_recluse [69]
x_{1}=3 \\  \\ x_{2}=5i \\  \\ x_{2}=-5i \\  \\ f(x)=(x-x_{1})(x-x_{2})(x-x_{3})=(x-3)(x-5i)(x+5i)= \\  \\ =(x-3)(x^{2}+25)=x^{3}+25x-3x^{2}-75=x^{3}-3x^{2}+25x-75

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6 0
3 years ago
If 15% of x is 42, what is x?
Blizzard [7]

Answer:

x=280

Step-by-step explanation:

We have, 15% × x = 42

or,

15

100

× x = 42

Multiplying both sides by 100 and dividing both sides by 15,

we have x = 42 ×

100

15

x = 280

If you are using a calculator, simply enter 42×100÷15, which will give you the answer.

6 0
3 years ago
Read 2 more answers
What property is this? (3x+12y)+(10x-5y)
SpyIntel [72]

Answer:

Assciates Property

Step-by-step explanation:

look at the picture above

6 0
3 years ago
Five friends share 3 bags of trail mix equally. what faction of a bag of trailmix does each friend get?
Agata [3.3K]
3/5 of trail mix per person
6 0
3 years ago
Andre has a summer job selling magazine subscriptions. He earns $25 each week plus $3 for every subscription he sells. Andre hop
Strike441 [17]

Answer: 25 + 3n

Step-by-step explanation:

Hi, the answer is lacking the last part:

<em>Write an expression for the amount of money he makes this week. </em>

So, to answer this we have to write an expression:

The fixed amount that he earns per week (25) plus the product of the amount he earns per subscription (3) and the number of subscriptions sold (n) , must be equal to his weekly earnings.

Mathematically speaking:

25 + 3n

Feel free to ask for more if needed or if you did not understand something.  

7 0
2 years ago
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